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Karyofyllis P, Demerouti E, Tsetika EG, Apostolopoulou S, Tsiapras P, Iakovou I, Tsiapras D. Haemolytic Anaemia-Related Pulmonary Hypertension. Life (Basel) 2024; 14:876. [PMID: 39063629 PMCID: PMC11277784 DOI: 10.3390/life14070876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/01/2024] [Accepted: 07/10/2024] [Indexed: 07/28/2024] Open
Abstract
Haemolytic anaemia represents a risk factor for the development of pulmonary hypertension (PH), currently classified as World Health Organization group 5 PH, and data regarding appropriate therapeutic strategy are limited. A total of 28 patients, 85.7% with thalassaemia and 14.3% with sickle cell disease, with a diagnosis of PH confirmed by right heart catheterization were included in the study. The patients were divided into three groups according to the PH haemodynamic definition and overall diagnostic approach: 42.9% had precapillary PH (pulmonary arterial hypertension-PAH group), 25% had post-capillary PH, and 32.1% had chronic thromboembolic PH (CTEPH) (29% of b-thalassemia and 50% of SCD patients). The therapeutic approach in each group and its impact on the outcome and haemodynamics were recorded. PAH-specific drug therapy received 82.1% of patients, and balloon pulmonary angioplasty (BPA) was performed in six patients with CTEPH. There were statistically significant differences in baseline mPAP and PVR values between the CTEPH-haemolytic anaemia group and other groups. PAH-specific drug therapy resulted in haemodynamic improvement for the PAH group. Patients who underwent BPA had improved pulmonary haemodynamics. The median survival time was 162 months, and the survival rate was 1 year-100%; 2, 3, 4, 5, and 6 years-96%; 9 years-90%; and 13 years-78%. In patients with haemolytic anaemia, the wide spectrum of induced PH highlighted the importance of a correct predominant diagnosis. BPA in CTEPH patients and specific-PAH drug therapy for PAH patients represent potential therapeutic strategies; however, the management should be offered in expert PH centres under individualized approaches for patients.
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Affiliation(s)
- Panagiotis Karyofyllis
- Invasive Cardiology Department, Onassis Cardiac Surgery Center, 17674 Athens, Greece; (P.K.); (E.-G.T.); (I.I.)
| | - Eftychia Demerouti
- Non-Invasive Cardiology Department, Onassis Cardiac Surgery Center, 17674 Athens, Greece;
| | | | | | | | - Ioannis Iakovou
- Invasive Cardiology Department, Onassis Cardiac Surgery Center, 17674 Athens, Greece; (P.K.); (E.-G.T.); (I.I.)
| | - Dimitrios Tsiapras
- Non-Invasive Cardiology Department, Onassis Cardiac Surgery Center, 17674 Athens, Greece;
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Moore J, Altschul E, Remy-Jardin M, Raoof S. Chronic Thromboembolic Pulmonary Hypertension: Clinical and Imaging Evaluation. Clin Chest Med 2024; 45:405-418. [PMID: 38816096 DOI: 10.1016/j.ccm.2024.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a complication of pulmonary embolism and is an important cause of pulmonary hypertension. As a clinical entity, it is frequently underdiagnosed with prolonged diagnostic delays. This study reviews the clinical and radiographic findings associated with CTEPH to improve awareness and recognition. Strengths and limitations of multiple imaging modalities are reviewed. Accompanying images are provided to supplement the text and provide examples of important findings for the reader.
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Affiliation(s)
- Jonathan Moore
- Department of Pulmonary and Critical Care Medicine, Lenox Hill Hospital, Northwell Health Physician Partners, New York, NY, USA
| | - Erica Altschul
- Department of Pulmonary and Critical Care Medicine, Lenox Hill Hospital, Northwell Health Physician Partners, New York, NY, USA
| | - Martine Remy-Jardin
- Department of Thoracic Imaging, Univ.Lille, CHU Lille, LILLE F-59000, France; Univ.Lille, CHU Lille, ULR 2694 METRICS Evaluation des Technologies de Santé et des Pratiques Médicales, LILLE F-59000, France
| | - Suhail Raoof
- Department of Pulmonary and Critical Care Medicine, Lenox Hill Hospital, Northwell Health Physician Partners, New York, NY, USA.
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Gawlitza J, Endres S, Fries P, Graf M, Wilkens H, Stroeder J, Buecker A, Massmann A, Ziegelmayer S. Machine learning assisted feature identification and prediction of hemodynamic endpoints using computed tomography in patients with CTEPH. Int J Cardiovasc Imaging 2024; 40:569-577. [PMID: 38143250 PMCID: PMC10950991 DOI: 10.1007/s10554-023-03026-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 11/24/2023] [Indexed: 12/26/2023]
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare but potentially curable cause of pulmonary hypertension (PH). Currently PH is diagnosed by right heart catheterisation. Computed tomography (CT) is used for ruling out other causes and operative planning. This study aims to evaluate importance of different quantitative/qualitative imaging features and develop a supervised machine learning (ML) model to predict hemodynamic risk groups. 127 Patients with diagnosed CTEPH who received preoperative right heart catheterization and thoracic CTA examinations (39 ECG-gated; 88 non-ECG gated) were included. 19 qualitative/quantitative imaging features and 3 hemodynamic parameters [mean pulmonary artery pressure, right atrial pressure (RAP), pulmonary artery oxygen saturation (PA SaO2)] were gathered. Diameter-based CT features were measured in axial and adjusted multiplane reconstructions (MPR). Univariate analysis was performed for qualitative and quantitative features. A random forest algorithm was trained on imaging features to predict hemodynamic risk groups. Feature importance was calculated for all models. Qualitative and quantitative parameters showed no significant differences between ECG and non-ECG gated CTs. Depending on reconstruction plane, five quantitative features were significantly different, but mean absolute difference between parameters (MPR vs. axial) was 0.3 mm with no difference in correlation with hemodynamic parameters. Univariate analysis showed moderate to strong correlation for multiple imaging features with hemodynamic parameters. The model achieved an AUC score of 0.82 for the mPAP based risk stratification and 0.74 for the PA SaO2 risk stratification. Contrast agent retention in hepatic vein, mosaic attenuation pattern and the ratio right atrium/left ventricle were the most important features among other parameters. Quantitative and qualitative imaging features of reconstructions correlate with hemodynamic parameters in preoperative CTEPH patients-regardless of MPR adaption. Machine learning based analysis of preoperative imaging features can be used for non-invasive risk stratification. Qualitative features seem to be more important than previously anticipated.
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Affiliation(s)
- Joshua Gawlitza
- Clinic/Institute of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany.
| | - Sophie Endres
- Clinic for Diagnostic and Interventional Radiology, Saarland University Medical Center, Kirrberger Strasse 100 (Building 41), 66424, Homburg, Germany
| | - Peter Fries
- Clinic for Diagnostic and Interventional Radiology, Saarland University Medical Center, Kirrberger Strasse 100 (Building 41), 66424, Homburg, Germany
| | - Markus Graf
- Clinic/Institute of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
| | - Heinrike Wilkens
- Cardiology, Angiology, Pulmonary and Intensive Care, Saarland University Medical Center, Kirrberger Strasse 100, 66424, Homburg, Germany
| | - Jonas Stroeder
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Arno Buecker
- Clinic for Diagnostic and Interventional Radiology, Saarland University Medical Center, Kirrberger Strasse 100 (Building 41), 66424, Homburg, Germany
| | - Alexander Massmann
- Department of Radiology and Nuclear Medicine, Robert-Bosch-Krankenhaus, Auerbachstr. 110, 70376, Stuttgart, Germany
| | - Sebastian Ziegelmayer
- Clinic/Institute of Diagnostic and Interventional Radiology, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Straße 22, 81675, Munich, Germany
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Hrdlicka J, Jurka M, Bircakova B, Ambroz D, Jansa P, Burgetova A, Lambert L. Even non-expert radiologists report chronic thromboembolic pulmonary hypertension (CTEPH) on CT pulmonary angiography with high sensitivity and almost perfect agreement. Eur Radiol 2024; 34:1086-1093. [PMID: 37606660 DOI: 10.1007/s00330-023-10098-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/15/2023] [Accepted: 06/25/2023] [Indexed: 08/23/2023]
Abstract
OBJECTIVES To assess the diagnostic performance and interobserver agreement of CT pulmonary angiography (CTPA) in the detection of chronic thromboembolic pulmonary hypertension (CTEPH) and its features among radiologists of different levels of experience. MATERIALS AND METHODS In this retrospective, single-center, single-blinded study, three radiologists with different levels of experience in CT imaging (R1:15 years, R2:6 years, and R3:3 years) evaluated CTPA of 51 patients ultimately diagnosed with CTEPH (European Society of Cardiology guidelines) and 49 patients without CTEPH in random order to assess the presence of CTEPH, its features in the pulmonary artery tree, proximal level of involvement, bronchial artery hypertrophy, mosaic perfusion, and right heart overload. RESULTS CTPAs of 51 patients with CTEPH (median age, 66 years (IQR 56-72), 28 men) and 49 patients without CTEPH (median age, 65 years (IQR 50-74), 25 men) were evaluated. The sensitivity and specificity for the detection of CTEPH was 100% (all radiologists) and 100% (R1), 96% (R2), and 96% (R3) with almost perfect agreement (κ = 0.95). The sensitivity and specificity for detecting CTEPH by mosaic perfusion would be 89% (95%CI 83-93%) and 81% (74-87%). The level of pulmonary artery involvement was reported with moderate agreement (κ = 0.54, 95%CI 0.40-0.65). Substantial agreement was found in the evaluation of mosaic attenuation (κ = 0.75, 95%CI 0.64-0.84), right heart overload (κ = 0.68, 95%CI 0.56-0.79), and bronchial artery hypertrophy (0.71, 95%CI 0.59-0.82) which were the best predictors of CTEPH (p < 0.0001). CONCLUSIONS CTPA has high sensitivity and specificity in detecting CTEPH and almost perfect agreement among radiologists of different levels of expertise. CLINICAL RELEVANCE CT pulmonary angiography can be used as a first-line imaging modality in patients with suspected chronic thromboembolic pulmonary hypertension (CTEPH) even when interpreted by non-CTEPH experts. KEY POINTS • CT pulmonary angiography has high sensitivity and specificity in detecting chronic thromboembolic pulmonary hypertension (CTEPH) and almost perfect interobserver agreement among radiologists of different levels of expertise. • Substantial agreement exists in the assessment of mosaic attenuation, right heart overload, and bronchial artery hypertrophy, which are the best predictors of CTEPH.
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Affiliation(s)
- Jan Hrdlicka
- Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic
| | - Martin Jurka
- Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic
| | - Bianka Bircakova
- Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic
| | - David Ambroz
- 2nd Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic
| | - Pavel Jansa
- 2nd Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic
| | - Andrea Burgetova
- Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic
| | - Lukas Lambert
- Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic.
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Crowley AV, Banfield M, Gupta A, Raj R, Gorantla VR. Role of Surgical and Medical Management of Chronic Thromboembolic Pulmonary Hypertension: A Systematic Review. Cureus 2024; 16:e53336. [PMID: 38435894 PMCID: PMC10907114 DOI: 10.7759/cureus.53336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2024] [Indexed: 03/05/2024] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is underdiagnosed and has recently surfaced as one of the leading triggers of severe pulmonary hypertension. This disease process is described by structural changes of pulmonary arteries such as fibrous stenosis, complete obliteration, or the presence of a resistant intraluminal thrombus, resulting in increased pulmonary resistance and eventually progressing to right-sided heart failure. Hence, this study aims to describe the current treatments for CTEPH and their efficacy in hemodynamic improvement and prevention of recurring thromboembolic episodes in patients. This systematic review promptly follows the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. On February 13, 2022, our team searched through the following databases: PubMed, ProQuest, and ScienceDirect. The following keywords were used across all databases: CTEPH AND Pulmonary Endarterectomy (PEA), CTEPH AND Balloon Pulmonary Angioplasty (BPA), and CTEPH AND Medical Therapy OR Anticoagulation therapy. Twenty-nine thousand eighty-nine articles on current management techniques (PEA, Balloon angioplasty, anticoagulants) were selected, analyzed, and reviewed with each other. We found 19 articles concerning PEA, 15 concerning BPA, and six regarding anticoagulants. Most papers showed high success rates and promising evidence of PEA and anticoagulants as a post-operative regimen. BPA was the least preferred but is still reputable in patients unfit for invasive techniques. CTEPH is a condition presenting with either fibrous stenosis, complete obliteration of the artery, or a clogged thrombus. Recent studies have shown three techniques that physicians have used to treat CTEPH: balloon-pulmonary angioplasty, PEA, and medical management with anticoagulants. PEA followed by anticoagulants is preferred to balloon pulmonary angioplasties. CTEPH is an ongoing topic in research; as it continues to be researched, we hope to see more management techniques available.
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Affiliation(s)
- Alexandra V Crowley
- Medicine, St. George's University School of Medicine, True Blue, St. George's, GRD
| | - Megan Banfield
- Medicine, St. George's University School of Medicine, True Blue, St. George's, GRD
| | - Aditi Gupta
- Medicine, St. George's University School of Medicine, True Blue, St. George's, GRD
| | - Rhea Raj
- Medicine, St. George's University School of Medicine, True Blue, St. George's, GRD
| | - Vasavi R Gorantla
- Biomedical Sciences, West Virginia School of Osteopathic Medicine, Lewisburg, USA
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Verbelen T, Godinas L, Dorfmüller P, Gopalan D, Condliffe R, Delcroix M. Clinical-radiological-pathological correlation in chronic thromboembolic pulmonary hypertension. Eur Respir Rev 2023; 32:230149. [PMID: 38123236 PMCID: PMC10731457 DOI: 10.1183/16000617.0149-2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 10/29/2023] [Indexed: 12/23/2023] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare and potentially life-threatening complication of acute pulmonary embolism. It is characterised by persistent fibro-thrombotic pulmonary vascular obstructions and elevated pulmonary artery pressure leading to right heart failure. The diagnosis is based on two steps, as follows: 1) suspicion based on symptoms, echocardiography and ventilation/perfusion scan and 2) confirmation with right heart catheterisation, computed tomography pulmonary angiography and, in most cases, digital subtraction angiography. The management of CTEPH requires a multimodal approach, involving medical therapy, interventional procedures and surgical intervention. This clinical-radiological-pathological correlation paper illustrates the diagnostic and therapeutic management of two patients. The first had chronic thromboembolic pulmonary disease without pulmonary hypertension at rest but with significant physical limitation and was successfully treated with pulmonary endarterectomy. The second patient had CTEPH associated with splenectomy and was considered unsuitable for surgery because of exclusive subsegmental lesions combined with severe pulmonary hypertension. The patient benefited from multimodal treatment involving medical therapy followed by multiple sessions of balloon pulmonary angioplasty. Both patients had normalised functional capacity and pulmonary haemodynamics 3-6 months after the interventional treatment. These two examples show that chronic thromboembolic pulmonary diseases are curable if diagnosed promptly and referred to CTEPH centres for specialist treatment.
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Affiliation(s)
- Tom Verbelen
- Department of Cardiac Surgery, University Hospitals Leuven, Leuven, Belgium
- Department of Cardiovascular Sciences, KU Leuven - University of Leuven, Leuven, Belgium
| | - Laurent Godinas
- Clinical Department of Respiratory Diseases, University Hospitals of Leuven and Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Leuven, Belgium
- Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven - University of Leuven, Leuven, Belgium
| | - Peter Dorfmüller
- Institut für Pathologie, Universitätsklinikum Giessen/Marburg and Deutsches Zentrum für Lungenforschung (DZL), Giessen, Germany
| | - Deepa Gopalan
- Department of Radiology, Imperial College Hospital NHS Trust, London, UK
| | - Robin Condliffe
- Sheffield Pulmonary Vascular Disease Unit, Sheffield Teaching Hospitals NHS Foundation Trust, Royal Hallamshire Hospital, Sheffield, UK
| | - Marion Delcroix
- Clinical Department of Respiratory Diseases, University Hospitals of Leuven and Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Leuven, Belgium
- Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven - University of Leuven, Leuven, Belgium
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Tello K, Richter MJ, Kremer N, Gall H, Egenlauf B, Sorichter S, Heberling M, Douschan P, Hager A, Yogeswaran A, Behr J, Xanthouli P, Held M. [Diagnostic Algorithm and Screening of Pulmonary Hypertension]. Pneumologie 2023; 77:871-889. [PMID: 37963477 DOI: 10.1055/a-2145-4678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
The new guidelines for the diagnosis and treatment of pulmonary hypertension include a new diagnostic algorithm and provide specific recommendations for the required diagnostic procedures, including screening methods. These recommendations are commented on by national experts under the auspices of the DACH. These comments provide additional decision support and background information, serving as a further guide for the complex diagnosis of pulmonary hypertension.
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Affiliation(s)
- Khodr Tello
- Medizinische Klinik II, Justus-Liebig-Universität Gießen, Universitäten Gießen und Marburg Lung Center (UGMLC), Mitglied des Deutschen Zentrums für Lungenforschung (DZL), Deutschland
| | - Manuel J Richter
- Medizinische Klinik II, Justus-Liebig-Universität Gießen, Universitäten Gießen und Marburg Lung Center (UGMLC), Mitglied des Deutschen Zentrums für Lungenforschung (DZL), Deutschland
| | - Nils Kremer
- Medizinische Klinik II, Justus-Liebig-Universität Gießen, Universitäten Gießen und Marburg Lung Center (UGMLC), Mitglied des Deutschen Zentrums für Lungenforschung (DZL), Deutschland
| | - Henning Gall
- Medizinische Klinik II, Justus-Liebig-Universität Gießen, Universitäten Gießen und Marburg Lung Center (UGMLC), Mitglied des Deutschen Zentrums für Lungenforschung (DZL), Deutschland
| | - Benjamin Egenlauf
- Zentrum für pulmonale Hypertonie, Thoraxklinik Heidelberg gGmbH am Universitätsklinikum Heidelberg, Heidelberg, Deutschland, Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - Stephan Sorichter
- Klinik für Pneumologie und Beatmungsmedizin, St.-Josefskrankenhaus, Freiburg im Breisgau, Deutschland
| | - Melanie Heberling
- Universitätsklinikum Dresden, Med. Klinik I, Pneumologie, Dresden, Deutschland
| | - Philipp Douschan
- Abteilung für Pulmonologie, Universitätsklinik für Innere Medizin, Graz, Österreich; Ludwig Boltzmann Institut für Lungengefäßforschung, Graz, Österreich
| | - Alfred Hager
- Department of Paediatric Cardiology and Congenital Heart Defects, Deutsches Herzzentrum München, München, Deutschland
| | - Athiththan Yogeswaran
- Medizinische Klinik II, Justus-Liebig-Universität Gießen, Universitäten Gießen und Marburg Lung Center (UGMLC), Mitglied des Deutschen Zentrums für Lungenforschung (DZL), Deutschland
| | - Jürgen Behr
- LMU Klinikum München, Medizinische Klinik und Poliklinik V, München, Deutschland. Comprehensive Pneumology Center (CPC-M), Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - Panagiota Xanthouli
- Zentrum für pulmonale Hypertonie, Thoraxklinik Heidelberg gGmbH am Universitätsklinikum Heidelberg, Heidelberg, Deutschland, Mitglied des Deutschen Zentrums für Lungenforschung (DZL)
| | - Matthias Held
- Klinikum Würzburg Mitte, Medizinische Klinik Schwerpunkt Pneumologie & Beatmungsmedizin, Würzburg, Deutschland
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Grafham GK, Bambrick M, Houbois C, Mafeld S, Donahoe L, de Perrot M, McInnis MC. Enhancing preoperative assessment in chronic thromboembolic pulmonary hypertension: A comprehensive analysis of interobserver agreement and proximity-based CT pulmonary angiography scoring. Heliyon 2023; 9:e20899. [PMID: 37954325 PMCID: PMC10632681 DOI: 10.1016/j.heliyon.2023.e20899] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/28/2023] [Accepted: 10/10/2023] [Indexed: 11/14/2023] Open
Abstract
Background Surgical risk in chronic thromboembolic pulmonary hypertension (CTEPH) depends on the proximity of thromboembolism on CT pulmonary angiography (CTPA). We assessed interobserver agreement for the quantification of thromboembolic lesions in CTEPH using a novel CTPA scoring index. Methods Forty CTEPH patients (mean age, 58 ± 16 years; 19 men) with preoperative CTPA who underwent pulmonary endarterectomy (PEA) (08/2020-09/2021) were retrospectively included. Three radiologists scored each CTPA for chronic thromboembolism (occlusions, eccentric thickening, webs) using a 32-vessel model of the pulmonary vasculature, with interobserver agreement evaluated using Fleiss' kappa. CT level of disease was determined by the most proximal chronic thromboembolism: level 1 (main pulmonary artery), 2 (lobar), 3 (segmental) and 4 (subsegmental), and compared to surgical level at PEA. Results Interobserver agreement for CT level of disease was moderate overall (κ = 0.52). Agreement was substantial overall at the main/lobar level (κ, mean = 0.71) when excluding the left upper lobe (κ = 0.17). Though segmental and subsegmental agreement suffered (κ = 0.31), we found substantial agreement for occlusions (κ = 0.72) compared to eccentric thickening (κ = 0.45) and webs (κ = 0.14). Correlation between CT level and surgical level was strong overall (τb = 0.73) and in the right lung (τb = 0.68), but weak in the left lung (τb = 0.42) (p < 0.05). Radiologists often over- and underestimated the proximal extent of disease in right and left lung, respectively. Conclusions CT level of disease demonstrated good agreement between radiologists and was highly predictive of the surgical level in CTEPH. Occlusions were the most reliable sign of chronic thromboembolism and are important in assessing the segmental vasculature.
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Affiliation(s)
- Grace K. Grafham
- Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Marie Bambrick
- Division of Cardiothoracic and Vascular Imaging, Joint Department of Medical Imaging, Toronto General Hospital, Toronto, Ontario, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Christian Houbois
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Sebastian Mafeld
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
- Division of Vascular and Interventional Radiology, Joint Department of Medical Imaging, Toronto General Hospital, Toronto, Ontario, Canada
| | - Laura Donahoe
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- Division of Thoracic Surgery, Department of Surgery, Toronto General Hospital, Toronto, Ontario, Canada
| | - Marc de Perrot
- Department of Surgery, University of Toronto, Toronto, Ontario, Canada
- Division of Thoracic Surgery, Department of Surgery, Toronto General Hospital, Toronto, Ontario, Canada
| | - Micheal C. McInnis
- Division of Cardiothoracic and Vascular Imaging, Joint Department of Medical Imaging, Toronto General Hospital, Toronto, Ontario, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
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9
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Bigdelu L, Daloee MH, Emadzadeh M, Parsa L, Najafi M, Baradaran Rahimi V. Comparison of echocardiographic pulmonary flow Doppler markers in patients with massive or submassive acute pulmonary embolism and control group: A cross-sectional study. Health Sci Rep 2023; 6:e1249. [PMID: 37152221 PMCID: PMC10158783 DOI: 10.1002/hsr2.1249] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 04/12/2023] [Accepted: 04/17/2023] [Indexed: 05/09/2023] Open
Abstract
Background and Aims Computed tomography angiography (CTA) is the gold standard for the diagnosis of massive (MPE) and submassive pulmonary embolism (SMPE). Ultrasound has not been accepted as a diagnostic tool. We aim to evaluate the pattern of pulmonary Doppler echocardiography in patients with pulmonary embolism (PE). Methods From 2020 to 2022, 30 patients with acute MPE or SMPE confirmed by CTA and normal pulmonary pressures were selected. A control group was created with 30 individuals without PE. All patients had an echocardiography Doppler study of the pulmonary flow with a focus on early systolic notching (ESN), McConnell's (MC) sign, Right ventricular outflow tract velocity time integral (RVOT VTI), segmental thickness variability (STV), right ventricular end-diastolic diameter (RVEDD), tricuspid regurgitation (TR) gradient, pulmonary artery pressure (PAP), and acceleration (AT) or ejection time (ET). Results ESN was identified in 96.6% of PE patients and 0% of the control group (p < 0.001). In comparison with the control group, STV (p < 0.001), RVOT VTI (p < 0.001), ET (p = 0.04), and AT (p < 0.001) values were lower in patients with PE while RVEDD, TR gradient, PAP, ESN, MC sign, and d-shape were higher (p < 0.001). Identification of the ESN pattern and AT/ET < 0.4 showed excellent predictive ability for MPE and SMPE with a sensitivity of 97.0% and 100%, specificity of 99.0% and 97%, and an area under the ROC curve of 0.967 (95% CI 0.914-1.00) and 0.933 (95% CI 0.844-1.00), respectively. Conclusion Doppler echocardiography with particular attention to ESN, may be a suitable noninvasive method for the diagnosis of MPE and SMPE. Further studies with more sample sizes are needed to confirm its diagnostic benefit.
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Affiliation(s)
- Leila Bigdelu
- Vascular and Endovascular Surgery Research CenterMashhad University of Medical SciencesMashhadIran
| | - Mahdi Hasanzadeh Daloee
- Department of Cardiovascular Diseases, Faculty of MedicineMashhad University of Medical SciencesMashhadIran
| | - Maryam Emadzadeh
- Clinical Research Development Unit, Ghaem HospitalMashhad University of Medical SciencesMashhadIran
| | - Leila Parsa
- Edward Via College of Osteopathic MedicineBlacksburgVirginiaUSA
| | - Mahnaz Najafi
- Department of Cardiovascular Diseases, Faculty of MedicineMashhad University of Medical SciencesMashhadIran
| | - Vafa Baradaran Rahimi
- Department of Cardiovascular Diseases, Faculty of MedicineMashhad University of Medical SciencesMashhadIran
- Pharmacological Research Center of Medicinal PlantsMashhad University of Medical SciencesMashhadIran
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10
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Pathophysiology and Treatment of Chronic Thromboembolic Pulmonary Hypertension. Int J Mol Sci 2023; 24:ijms24043979. [PMID: 36835383 PMCID: PMC9968103 DOI: 10.3390/ijms24043979] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/10/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a condition in which an organic thrombus remains in the pulmonary artery (PA) even after receiving anticoagulation therapy for more than 3 months and is complicated by pulmonary hypertension (PH), leading to right-sided heart failure and death. CTEPH is a progressive pulmonary vascular disease with a poor prognosis if left untreated. The standard treatment for CTEPH is pulmonary endarterectomy (PEA), which is usually performed only in specialized centers. In recent years, balloon pulmonary angioplasty (BPA) and drug therapy for CTEPH have also shown good results. This review discusses the complex pathogenesis of CTEPH and presents the standard of care, PEA, as well as a new device called BPA, which is showing remarkable progress in efficacy and safety. Additionally, several drugs are now demonstrating established evidence of efficacy in treating CTEPH.
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Simonneau G, Fadel E, Vonk Noordegraaf A, Toshner M, Lang IM, Klok FA, McInnis MC, Screaton N, Madani MM, Martinez G, Salaunkey K, Jenkins DP, Matsubara H, Brénot P, Hoeper MM, Ghofrani HA, Jaïs X, Wiedenroth CB, Guth S, Kim NH, Pepke-Zaba J, Delcroix M, Mayer E. Highlights from the International Chronic Thromboembolic Pulmonary Hypertension Congress 2021. Eur Respir Rev 2023; 32:32/167/220132. [PMID: 36754432 PMCID: PMC9910339 DOI: 10.1183/16000617.0132-2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 10/14/2022] [Indexed: 02/10/2023] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare complication of acute pulmonary embolism. It is caused by persistent obstruction of pulmonary arteries by chronic organised fibrotic clots, despite adequate anticoagulation. The pulmonary hypertension is also caused by concomitant microvasculopathy which may progress without timely treatment. Timely and accurate diagnosis requires the combination of imaging and haemodynamic assessment. Optimal therapy should be individualised to each case and determined by an experienced multidisciplinary CTEPH team with the ability to offer all current treatment modalities. This report summarises current knowledge and presents key messages from the International CTEPH Conference, Bad Nauheim, Germany, 2021. Sessions were dedicated to 1) disease definition; 2) pathophysiology, including the impact of the hypertrophied bronchial circulation, right ventricle (dys)function, genetics and inflammation; 3) diagnosis, early after acute pulmonary embolism, using computed tomography and perfusion techniques, and supporting the selection of appropriate therapies; 4) surgical treatment, pulmonary endarterectomy for proximal and distal disease, and peri-operative management; 5) percutaneous approach or balloon pulmonary angioplasty, techniques and complications; and 6) medical treatment, including anticoagulation and pulmonary hypertension drugs, and in combination with interventional treatments. Chronic thromboembolic pulmonary disease without pulmonary hypertension is also discussed in terms of its diagnostic and therapeutic aspects.
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Affiliation(s)
- Gérald Simonneau
- AP-HP, Service de Pneumologie, Hôpital Bicêtre, Université Paris-Sud, Laboratoire d'Excellence en Recherche sur le Médicament et Innovation Thérapeutique and Institut National de la Santé et de la Recherche Médicale Unité 999, Le Kremlin-Bicêtre, France
| | - Elie Fadel
- Research and Innovation Unit, INSERM UMR-S 999, Marie Lannelongue Hospital, Université Paris-Sud, Université Paris-Saclay, Le Plessis-Robinson, France,Department of Thoracic and Vascular Surgery and Heart-Lung Transplantation, Marie Lannelongue Hospital, Université Paris-Sud, Université Paris-Saclay, Le Plessis-Robinson, France,Université Paris-Sud and Université Paris-Saclay, School of Medicine, Kremlin-Bicêtre, France
| | - Anton Vonk Noordegraaf
- Department of Pulmonary Medicine, Amsterdam Universitair Medische Centra, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Mark Toshner
- Royal Papworth Hospital, University of Cambridge, Cambridge, UK
| | - Irene M. Lang
- Division of Cardiology, Department of Internal Medicine II, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
| | - Frederikus A. Klok
- Department of Medicine – Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, The Netherlands
| | - Micheal C. McInnis
- Department of Medical Imaging, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | | | - Michael M. Madani
- Cardiovascular and Thoracic Surgery, University of California-San Diego, La Jolla, CA, USA
| | | | - Kiran Salaunkey
- Royal Papworth Hospital, University of Cambridge, Cambridge, UK
| | | | - Hiromi Matsubara
- National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Philippe Brénot
- Department of Radiology, Hôpital Marie Lannelongue, Le Plessis-Robinson, France
| | - Marius M. Hoeper
- Department of Respiratory Medicine, Hannover Medical School and Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Hossein A. Ghofrani
- Pulmonary Vascular Research, Justus-Liebig University and Pulmonary Hypertension Division, University Hospital Giessen, Giessen, Germany,Department of Pneumology, Kerckhoff Clinic, Bad Nauheim, Germany
| | - Xavier Jaïs
- AP-HP, Service de Pneumologie, Hôpital Bicêtre, Université Paris-Sud, Laboratoire d'Excellence en Recherche sur le Médicament et Innovation Thérapeutique and Institut National de la Santé et de la Recherche Médicale Unité 999, Le Kremlin-Bicêtre, France
| | | | - Stefan Guth
- Department of Thoracic Surgery, Kerckhoff Clinic, Bad Nauheim, Germany
| | - Nick H. Kim
- Division of Pulmonary and Critical Care Medicine, University of California-San Diego, La Jolla, CA, USA
| | | | - Marion Delcroix
- Clinical Department of Respiratory Diseases, University Hospitals of Leuven and Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven - University of Leuven, Leuven, Belgium .,M. Delcroix and E. Mayer equal contribution (co-last authors)
| | - Eckhard Mayer
- Department of Thoracic Surgery, Kerckhoff Clinic, Bad Nauheim, Germany,Meeting organiser,M. Delcroix and E. Mayer equal contribution (co-last authors)
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Hahn LD, Papamatheakis DG, Fernandes TM, Poch DS, Yang J, Shen J, Hoh CK, Hsiao A, Kerr KM, Pretorius V, Madani MM, Kim NH, Kligerman SJ. Multidisciplinary Approach to Chronic Thromboembolic Pulmonary Hypertension: Role of Radiologists. Radiographics 2023; 43:e220078. [DOI: 10.1148/rg.220078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Lewis D. Hahn
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Demosthenes G. Papamatheakis
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Timothy M. Fernandes
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - David S. Poch
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Jenny Yang
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Jody Shen
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Carl K. Hoh
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Albert Hsiao
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Kim M. Kerr
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Victor Pretorius
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Michael M. Madani
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Nick H. Kim
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
| | - Seth J. Kligerman
- From the Departments of Radiology (L.D.H., C.K.H., A.H., S.J.K.), Pulmonology (D.G.P., T.M.F., D.S.P., J.Y., C.K.H., K.M.K., N.H.K.), and Cardiothoracic Surgery (V.P., M.M.M.), University of California San Diego School of Medicine, 9300 Campus Point Dr, La Jolla, CA 92037-0841; and Department of Radiology, Stanford School of Medicine, Palo Alto, Calif (J.S.)
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Humbert M, Kovacs G, Hoeper MM, Badagliacca R, Berger RMF, Brida M, Carlsen J, Coats AJS, Escribano-Subias P, Ferrari P, Ferreira DS, Ghofrani HA, Giannakoulas G, Kiely DG, Mayer E, Meszaros G, Nagavci B, Olsson KM, Pepke-Zaba J, Quint JK, Rådegran G, Simonneau G, Sitbon O, Tonia T, Toshner M, Vachiery JL, Vonk Noordegraaf A, Delcroix M, Rosenkranz S. 2022 ESC/ERS Guidelines for the diagnosis and treatment of pulmonary hypertension. Eur Respir J 2023; 61:13993003.00879-2022. [PMID: 36028254 DOI: 10.1183/13993003.00879-2022] [Citation(s) in RCA: 469] [Impact Index Per Article: 469.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Marc Humbert
- Faculty of Medicine, Université Paris-Saclay, Le Kremlin-Bicêtre, France, Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, Le Kremlin-Bicêtre, France
- INSERM UMR_S 999, Hôpital Marie-Lannelongue, Le Plessis-Robinson, France
| | - Gabor Kovacs
- University Clinic of Internal Medicine, Division of Pulmonology, Medical University of Graz, Graz, Austria
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Marius M Hoeper
- Respiratory Medicine, Hannover Medical School, Hanover, Germany
- Biomedical Research in End-stage and Obstructive Lung Disease (BREATH), member of the German Centre of Lung Research (DZL), Hanover, Germany
| | - Roberto Badagliacca
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza Università di Roma, Roma, Italy
- Dipartimento Cardio-Toraco-Vascolare e Chirurgia dei Trapianti d'Organo, Policlinico Umberto I, Roma, Italy
| | - Rolf M F Berger
- Center for Congenital Heart Diseases, Beatrix Children's Hospital, Dept of Paediatric Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Margarita Brida
- Department of Sports and Rehabilitation Medicine, Medical Faculty University of Rijeka, Rijeka, Croatia
- Adult Congenital Heart Centre and National Centre for Pulmonary Hypertension, Royal Brompton and Harefield Hospitals, Guys and St Thomas's NHS Trust, London, UK
| | - Jørn Carlsen
- Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Andrew J S Coats
- Faculty of Medicine, University of Warwick, Coventry, UK
- Faculty of Medicine, Monash University, Melbourne, Australia
| | - Pilar Escribano-Subias
- Pulmonary Hypertension Unit, Cardiology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
- CIBER-CV (Centro de Investigaciones Biomédicas En Red de enfermedades CardioVasculares), Instituto de Salud Carlos III, Madrid, Spain
- Facultad de Medicina, Universidad Complutense, Madrid, Spain
| | - Pisana Ferrari
- ESC Patient Forum, Sophia Antipolis, France
- AIPI, Associazione Italiana Ipertensione Polmonare, Bologna, Italy
| | - Diogenes S Ferreira
- Alergia e Imunologia, Hospital de Clinicas, Universidade Federal do Parana, Curitiba, Brazil
| | - Hossein Ardeschir Ghofrani
- Department of Internal Medicine, University Hospital Giessen, Justus-Liebig University, Giessen, Germany
- Department of Pneumology, Kerckhoff Klinik, Bad Nauheim, Germany
- Department of Medicine, Imperial College London, London, UK
| | - George Giannakoulas
- Cardiology Department, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
| | - David G Kiely
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
- Sheffield Pulmonary Vascular Disease Unit, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
- Insigneo Institute, University of Sheffield, Sheffield, UK
| | - Eckhard Mayer
- Thoracic Surgery, Kerckhoff Clinic, Bad Nauheim, Germany
| | - Gergely Meszaros
- ESC Patient Forum, Sophia Antipolis, France
- European Lung Foundation (ELF), Sheffield, UK
| | - Blin Nagavci
- Institute for Evidence in Medicine, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Karen M Olsson
- Clinic of Respiratory Medicine, Hannover Medical School, member of the German Center of Lung Research (DZL), Hannover, Germany
| | - Joanna Pepke-Zaba
- Pulmonary Vascular Diseases Unit, Royal Papworth Hospital, Cambridge, UK
| | | | - Göran Rådegran
- Department of Cardiology, Clinical Sciences Lund, Faculty of Medicine, Lund, Sweden
- The Haemodynamic Lab, The Section for Heart Failure and Valvular Disease, VO. Heart and Lung Medicine, Skåne University Hospital, Lund, Sweden
| | - Gerald Simonneau
- Faculté Médecine, Université Paris Saclay, Le Kremlin-Bicêtre, France
- Centre de Référence de l'Hypertension Pulmonaire, Hopital Marie-Lannelongue, Le Plessis-Robinson, France
| | - Olivier Sitbon
- INSERM UMR_S 999, Hôpital Marie-Lannelongue, Le Plessis-Robinson, France
- Faculté Médecine, Université Paris Saclay, Le Kremlin-Bicêtre, France
- Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, Le Kremlin-Bicêtre, France
| | - Thomy Tonia
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Mark Toshner
- Dept of Medicine, Heart Lung Research Institute, University of Cambridge, Royal Papworth NHS Trust, Cambridge, UK
| | - Jean-Luc Vachiery
- Department of Cardiology, Pulmonary Vascular Diseases and Heart Failure Clinic, HUB Hôpital Erasme, Brussels, Belgium
| | | | - Marion Delcroix
- Clinical Department of Respiratory Diseases, Centre of Pulmonary Vascular Diseases, University Hospitals of Leuven, Leuven, Belgium
- The two chairpersons (M. Delcroix and S. Rosenkranz) contributed equally to the document and are joint corresponding authors
| | - Stephan Rosenkranz
- Clinic III for Internal Medicine (Department of Cardiology, Pulmonology and Intensive Care Medicine), and Cologne Cardiovascular Research Center (CCRC), Heart Center at the University Hospital Cologne, Köln, Germany
- The two chairpersons (M. Delcroix and S. Rosenkranz) contributed equally to the document and are joint corresponding authors
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Akincioglu C, Mehta S. Nuclear imaging in chronic thromboembolic pulmonary hypertension: increasingly central to diagnosis and management. J Nucl Cardiol 2022; 29:3401-3404. [PMID: 35851646 DOI: 10.1007/s12350-022-03056-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 06/01/2022] [Indexed: 01/18/2023]
Affiliation(s)
- Cigdem Akincioglu
- Division of Nuclear Medicine, Department of Medical Imaging, University of Western Ontario, Schulich School of Medicine and Dentistry, London, ON, Canada.
| | - Sanjay Mehta
- Southwest Ontario Pulmonary Hypertension Clinic, London Health Sciences Centre, Schulich School of Medicine & Dentistry, Western University and Pulmonary Hypertension Association (PHA) of Canada, London, ON, Canada
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Remy-Jardin M, Hutt A, Remy J. Chronic Thromboembolic Pulmonary Disease and Chronic Thromboembolic Pulmonary Hypertension. Semin Respir Crit Care Med 2022; 43:936-945. [PMID: 36307107 DOI: 10.1055/s-0042-1755570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) and chronic thromboembolic pulmonary disease (CTEPD) are two terms characterizing symptomatic patients with chronic thromboembolic occlusions of pulmonary arteries with or without pulmonary hypertension at rest. Their diagnosis follows evolving schemas that integrate technological advances of pivotal imaging modalities among which computed tomography angiography plays a major role. This review article summarizes the current knowledge on the natural history of acute pulmonary embolism and its evolution toward chronic pulmonary embolism, as well as the imaging clues, for the identification of chronically obstructed pulmonary arteries. The requirements for imaging at the time of therapeutic decisions are also described in the light of recent updates in the literature from multidisciplinary groups of experts. Because an early diagnosis of CTEPH remains a challenge for the medical community, several practical issues are included in this article with the objective of improving the knowledge and collaboration between radiologists and clinicians in service to the patient.
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Affiliation(s)
| | - Antoine Hutt
- Department of Thoracic Imaging, Heart & Lung Institute, Lille Cedex, France
| | - Jacques Remy
- Department of Thoracic Imaging, Heart & Lung Institute, Lille Cedex, France
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16
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Clinical Presentations and Multimodal Imaging Diagnosis in Chronic Thromboembolic Pulmonary Hypertension. J Clin Med 2022; 11:jcm11226678. [PMID: 36431155 PMCID: PMC9698386 DOI: 10.3390/jcm11226678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare but life-threatening pulmonary vascular disease caused by the presence of a prolonged thrombus in the pulmonary artery. CTEPH is a distinct disease entity classified as group 4 pulmonary hypertension according to the World Symposium on Pulmonary Hypertension. It is the only potentially curable cause of pulmonary hypertension. However, timely diagnosis and treatment are often hampered by nonspecific symptoms and signs and a lack of physician awareness regarding the condition. Thus, it is important to be familiar with the clinical features of CTEPH and the associated diagnostic processes. Herein, we cover the diagnostic approach for CTEPH using multimodal imaging tools in a clinical setting.
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Lambert L, Michalek P, Burgetova A. The diagnostic performance of CT pulmonary angiography in the detection of chronic thromboembolic pulmonary hypertension-systematic review and meta-analysis. Eur Radiol 2022; 32:7927-7935. [PMID: 35482124 DOI: 10.1007/s00330-022-08804-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/24/2022] [Accepted: 04/05/2022] [Indexed: 01/03/2023]
Abstract
OBJECTIVES To examine the diagnostic performance of CT of the pulmonary artery (CTPA) as a potential first-choice imaging modality in patients with pulmonary arterial hypertension and suspected chronic thromboembolic pulmonary hypertension (CTEPH). METHODS A systematic review and meta-analysis were conducted in accordance with the PRISMA reporting checklist. Six scientific databases and registers (PubMed, EMBASE, Scopus, Web of Science, Cochrane, ClinicalTrials.gov ) were searched for studies evaluating the diagnostic performance of CTPA in suspected CTEPH in adult patients. Results were pooled separately for studies based on the evaluation of the pulmonary artery and those that relied solely on changes in parenchymal perfusion. RESULTS Ten single-center studies with 734 patients were eligible for pooling of the diagnostic performance of CTPA by evaluation of the pulmonary artery. The pooled sensitivity, specificity, PPV, NPV, accuracy, and diagnostic odds ratio (DOR) estimates for CTPA in the detection of CTEPH were 0.98, 0.99, 0.94, 1.00, 0.96, 0.96, and 292. Evaluation of perfusion changes yielded pooled estimates for sensitivity, specificity, PPV, NPV, accuracy, and DOR of 0.99, 0.84, 0.79, 0.98, 0.89, 0.89, and 98 across four studies with 278 patients. Scintigraphy, SPECT, digital subtraction angiography, right heart catheterization, pulmonary endarterectomy, and international guidelines were used to establish the diagnosis. CONCLUSION CTPA has high sensitivity and specificity in the detection of CTEPH when the examination is evaluated by expert radiologists. Evaluation of parenchymal perfusion alone is associated with slightly lower specificity. Further research is needed to determine the diagnostic performance of CTPA in excluding CTEPH in general radiology departments. KEY POINTS • CT pulmonary angiography (CTPA) is recommended in the diagnostic workup of chronic thromboembolic pulmonary hypertension (CTEPH). • CTPA has high sensitivity and specificity in the detection of CTEPH when evaluated by an expert radiologist. • Evaluation of changes in parenchymal perfusion alone is associated with slightly lower specificity. • Little is known about the diagnostic performance of CTPA in the detection of CTEPH in general radiology departments.
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Affiliation(s)
- Lukas Lambert
- Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic.
| | - Pavel Michalek
- Department of Anaesthesiology, Resuscitation and Intensive Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic
| | - Andrea Burgetova
- Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, U Nemocnice 2, 128 08, Prague 2, Czech Republic
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Patel N, Hyder SN, Michaud E, Moles V, Agarwal PP, Rosenfield K, Abe K, Haft J, Visovatti SH, Cascino TM, Auger WR, Mclaughlin VV, Aggarwal V. Interventional Imaging Roadmap to Successful Balloon Pulmonary Angioplasty for Chronic Thromboembolic Pulmonary Hypertension. JOURNAL OF THE SOCIETY FOR CARDIOVASCULAR ANGIOGRAPHY & INTERVENTIONS 2022; 1:100429. [PMID: 39132377 PMCID: PMC11307535 DOI: 10.1016/j.jscai.2022.100429] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 07/06/2022] [Accepted: 07/13/2022] [Indexed: 08/13/2024]
Abstract
Balloon pulmonary angioplasty (BPA) is an evolving treatment modality for patients with chronic thromboembolic pulmonary hypertension (CTEPH) who are not candidates for pulmonary endarterectomy. Although several imaging modalities currently exist for evaluating CTEPH, their individual use, specifically in the clinical practice of BPA, has not been well described. In this article, we provide a preprocedural, intraprocedural, and postprocedural interventional imaging roadmap for safe and effective BPA performance in routine clinical practice. Preprocedural assessment includes transthoracic echocardiography for right ventricular assessment, ventilation/perfusion scan to identify pulmonary segments with the highest degree of hypoperfusion, cross-sectional chest imaging excluding alternative causes of mismatched defects and providing anatomic and perfusion imaging concurrently, and nonselective invasive pulmonary angiography for risk stratification of individual lesion subtypes. Intraprocedural assessment includes subselective segmental angiography (SSA) for delineating segmental and subsegmental branch anatomy, lesion identification, and vessel sizing. Intravascular ultrasound and optical coherence tomography serve as adjunctive intraprocedural tools for more accurate vessel sizing and lesion characterization when SSA alone is insufficient. Postprocedural considerations include chest radiography to monitor for immediate postprocedure complications and echocardiography for the interval assessment of the right ventricle on longer-term follow-up.
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Affiliation(s)
- Nimai Patel
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Syed N. Hyder
- Division of Cardiology (Frankel Cardiovascular Center), Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Erinleigh Michaud
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Victor Moles
- Division of Cardiology (Frankel Cardiovascular Center), Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Prachi P. Agarwal
- Division of Cardiothoracic Radiology, Department of Radiology, University of Michigan, Ann Arbor, Michigan
| | - Kenneth Rosenfield
- Division of Cardiology, Department of Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Kohtaro Abe
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Jonathan Haft
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan
| | - Scott H. Visovatti
- Division of Cardiovascular Medicine, Department of Internal Medicine, The Ohio State University, Columbus, Ohio
| | - Thomas M. Cascino
- Division of Cardiology (Frankel Cardiovascular Center), Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - William R. Auger
- Division of Pulmonary Medicine, Department of Internal Medicine, University of California San Diego, San Diego, California
| | - Vallerie V. Mclaughlin
- Division of Cardiology (Frankel Cardiovascular Center), Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Vikas Aggarwal
- Division of Cardiology (Frankel Cardiovascular Center), Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
- Section of Cardiology, Department of Internal Medicine, Veterans Affairs Medical Center, Ann Arbor, Michigan
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19
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Humbert M, Kovacs G, Hoeper MM, Badagliacca R, Berger RMF, Brida M, Carlsen J, Coats AJS, Escribano-Subias P, Ferrari P, Ferreira DS, Ghofrani HA, Giannakoulas G, Kiely DG, Mayer E, Meszaros G, Nagavci B, Olsson KM, Pepke-Zaba J, Quint JK, Rådegran G, Simonneau G, Sitbon O, Tonia T, Toshner M, Vachiery JL, Vonk Noordegraaf A, Delcroix M, Rosenkranz S. 2022 ESC/ERS Guidelines for the diagnosis and treatment of pulmonary hypertension. Eur Heart J 2022; 43:3618-3731. [PMID: 36017548 DOI: 10.1093/eurheartj/ehac237] [Citation(s) in RCA: 1082] [Impact Index Per Article: 541.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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20
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Microvasculopathy Evaluated by Dual-Energy Computed Tomography in Patients with Chronic Thromboembolic Pulmonary Hypertension and Pulmonary Arterial Hypertension. Life (Basel) 2022; 12:life12081232. [PMID: 36013412 PMCID: PMC9410450 DOI: 10.3390/life12081232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 12/03/2022] Open
Abstract
Background: Poor subpleural perfusion (PSP) on dual-energy computed tomography (DE-CT) suggests microvasculopathy in chronic thromboembolic pulmonary hypertension (CTEPH). However, whether the microvasculopathy findings are equivalent to those in pulmonary arterial hypertension (PAH) remains unclear. The aim of this study was to elucidate the characteristics of microvasculopathy in CTEPH compared to those of that in PAH. Methods: We retrospectively reviewed subpleural perfusion on DE-CT and the hemodynamics of 23 patients with PAH and 113 with inoperable CTEPH. Subpleural perfusion on DE-CT was classified as poor (subpleural spaces in all segments with little or no perfusion) or normal. Results: PSP was observed in 51% of patients with CTEPH and in 4% of those with PAH (p < 0.01). CTEPH patients with PSP had poorer baseline hemodynamics and lower diffusing capacity for carbon monoxide divided by the alveolar volume (DLCO/VA) than those with CTEPH with normal perfusion (pulmonary vascular resistance [PVR]: 768 ± 445 dynes-sec/cm5 vs. 463 ± 284 dynes-sec/cm5, p < 0.01; DLCO/VA, 60.4 ± 16.8% vs. 75.9 ± 15.7%, p < 0.001). Despite the existence of PSP, hemodynamics improved to nearly normal in both groups after balloon pulmonary angioplasty. Conclusions: PSP on DE-CT, which is one of the specific imaging findings in CTEPH, might suggest a different mechanism of microvasculopathy from that in PAH.
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21
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Tsarova K, Morgan AE, Melendres-Groves L, Ibrahim MM, Ma CL, Pan IZ, Hatton ND, Beck EM, Ferrel MN, Selzman CH, Ingram D, Alamri AK, Ratcliffe MB, Wilson BD, Ryan JJ. Imaging in Pulmonary Vascular Disease-Understanding Right Ventricle-Pulmonary Artery Coupling. Compr Physiol 2022; 12:3705-3730. [PMID: 35950653 DOI: 10.1002/cphy.c210017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The right ventricle (RV) and pulmonary arterial (PA) tree are inextricably linked, continually transferring energy back and forth in a process known as RV-PA coupling. Healthy organisms maintain this relationship in optimal balance by modulating RV contractility, pulmonary vascular resistance, and compliance to sustain RV-PA coupling through life's many physiologic challenges. Early in states of adaptation to cardiovascular disease-for example, in diastolic heart failure-RV-PA coupling is maintained via a multitude of cellular and mechanical transformations. However, with disease progression, these compensatory mechanisms fail and become maladaptive, leading to the often-fatal state of "uncoupling." Noninvasive imaging modalities, including echocardiography, magnetic resonance imaging, and computed tomography, allow us deeper insight into the state of coupling for an individual patient, providing for prognostication and potential intervention before uncoupling occurs. In this review, we discuss the physiologic foundations of RV-PA coupling, elaborate on the imaging techniques to qualify and quantify it, and correlate these fundamental principles with clinical scenarios in health and disease. © 2022 American Physiological Society. Compr Physiol 12: 1-26, 2022.
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Affiliation(s)
- Katsiaryna Tsarova
- Division of Cardiovascular Medicine, Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Ashley E Morgan
- Division of Cardiothoracic Surgery, Department of Surgery, University of Utah, Salt Lake City, Utah, USA
| | - Lana Melendres-Groves
- Division of Pulmonary and Critical Care Medicine, University of New Mexico, Albuquerque, New Mexico, USA
| | - Majd M Ibrahim
- Division of Cardiovascular Medicine, Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Christy L Ma
- Division of Cardiovascular Medicine, Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Irene Z Pan
- Department of Pharmacy, University of Utah Health, Salt Lake City, Utah, USA
| | - Nathan D Hatton
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Emily M Beck
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Meganne N Ferrel
- Division of Cardiovascular Medicine, Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Craig H Selzman
- Division of Cardiothoracic Surgery, Department of Surgery, University of Utah, Salt Lake City, Utah, USA
| | - Dominique Ingram
- Division of Cardiovascular Medicine, Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Ayedh K Alamri
- Department of Medicine, University of Utah, Salt Lake City, Utah, USA
| | | | - Brent D Wilson
- Division of Cardiovascular Medicine, Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - John J Ryan
- Division of Cardiovascular Medicine, Department of Medicine, University of Utah School of Medicine, Salt Lake City, Utah, USA
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22
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McInnis M. Imaging Advances in Chronic Thromboembolic Pulmonary Hypertension. Semin Roentgenol 2022; 57:324-334. [DOI: 10.1053/j.ro.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 06/29/2022] [Accepted: 07/02/2022] [Indexed: 11/11/2022]
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23
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Chronic Thromboembolic Pulmonary Hypertension. Lung 2022; 200:283-299. [DOI: 10.1007/s00408-022-00539-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/18/2022] [Indexed: 10/18/2022]
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24
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Verbelen T, Godinas L, Maleux G, Coolen J, Claessen G, Belge C, Meyns B, Delcroix M. Chronic thromboembolic pulmonary hypertension: diagnosis, operability assessment and patient selection for pulmonary endarterectomy. Ann Cardiothorac Surg 2022; 11:82-97. [PMID: 35433370 PMCID: PMC9012197 DOI: 10.21037/acs-2021-pte-12] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/08/2021] [Indexed: 07/30/2023]
Abstract
Healthcare providers outside pulmonary hypertension (PH) centers having misinformation or insufficient education, and a general lack of treatment awareness contribute to a massive underdiagnosis of chronic thromboembolic pulmonary hypertension (CTEPH), diagnostic delay and refusal of surgery by patients. Together with the subjective operability assessment, this leads to too few patients undergoing pulmonary endarterectomy (PEA); even though this surgery results in improved survival and exercise capacity. Acute pulmonary embolism (PE) survivors should undergo a CTEPH screening strategy. Patients screened positive and those with CTEPH symptoms (with or without history of PE), should undergo transthoracic echocardiography (TTE) to determine the probability of PH. High PH probability patients should undergo a ventilation/perfusion (V/Q) scan. A negative scan rules out CTEPH. Patients with a positive V/Q scan, but also patients with findings suggestive for CTEPH on computed tomography pulmonary angiography (CTPA) to diagnose acute PE, should be referred to a CTEPH center. Further diagnostic work-up currently consists of catheter based pulmonary angiography, CTPA and right heart catheterization. However, new imaging technologies might replace them in the near future, with one single imaging tool to screen, diagnose and assess operability as the ultimate goal. Operability assessment should be performed by a multidisciplinary CTEPH team. PEA surgery should be organized in a single center per country or for each forty to fifty million inhabitants in order to offer the highest level of expertise. Informing patients about PEA should preferably be done by the treating surgeon. Based on the estimated incidence of CTEPH and with a better education of patients and healthcare providers, despite the advent of new interventional and medical therapies for CTEPH, the number of PEA surgeries performed should still have the potential to grow significantly.
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Affiliation(s)
- Tom Verbelen
- Department of Cardiac Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Laurent Godinas
- Department of Pneumology, University Hospitals Leuven, Leuven, Belgium
| | - Geert Maleux
- Department of Radiology, University Hospitals Leuven, Leuven, Belgium
| | - Johan Coolen
- Department of Radiology, University Hospitals Leuven, Leuven, Belgium
| | - Guido Claessen
- Department of Cardiology, University Hospitals Leuven, Leuven, Belgium
| | - Catharina Belge
- Department of Pneumology, University Hospitals Leuven, Leuven, Belgium
| | - Bart Meyns
- Department of Cardiac Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Marion Delcroix
- Department of Pneumology, University Hospitals Leuven, Leuven, Belgium
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25
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Kroeger JR, Zöllner J, Gerhardt F, Rosenkranz S, Gertz RJ, Kerszenblat S, Pahn G, Maintz D, Bunck AC. Detection of patients with chronic thromboembolic pulmonary hypertension by volumetric iodine quantification in the lung-a case control study. Quant Imaging Med Surg 2022; 12:1121-1129. [PMID: 35111609 DOI: 10.21037/qims-21-229] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 08/23/2021] [Indexed: 01/23/2023]
Abstract
Background To evaluate whether volumetric iodine quantification of the lung allows for the automatic identification of patients with chronic thromboembolic pulmonary hypertension (CTEPH) and whether the extent of pulmonary malperfusion correlates with invasive hemodynamic parameters. Methods Retrospective data base search identified 30 consecutive patients with CTEPH who underwent CT pulmonary angiography (CTPA) on a spectral-detector CT scanner. Thirty consecutive patients who underwent an identical CT examination for evaluation of suspected acute pulmonary embolism and had no signs of pulmonary embolism or PH, served as control cohort. Lungs were automatically segmented for all patients and normal and malperfused volumes were segmented based on iodine density thresholds. Results were compared between groups. For correlation analysis between the extent of malperfused volume and mean pulmonary artery pressure (mPAP) and pulmonary vascular resistance (PVR) 3 patients were excluded because of a time span of more than 30 days between CTPA and right heart catheterization. Results Patients with CTEPH had a higher percentage of malperfused lung compared to controls (43.25%±24.72% vs. 21.82%±20.72%; P=0.001) and showed reduced mean iodine density in malperfused and normal-perfused lung areas, as well as in the vessel volume. Controls showed a left-tailed distribution of iodine density in malperfused lung areas while patients with CTEPH had a more symmetrical distribution (Skew: -0.382±0.435 vs. -0.010±0.396; P=0.004). Patients with CTEPH showed a significant correlation between the percentage of malperfused lung volume and the PVR (r=0.57, P=0.001). Conclusions Volumetric iodine quantification helps to identify patients with CTEPH by showing increased areas of malperfusion. The extent of malperfusion might provide a measurement for disease severity in patients with CTEPH.
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Affiliation(s)
- Jan Robert Kroeger
- Department of Radiology, Neuroradiology and Nuclear Medicine, Johannes Wesling University Hospital, Ruhr University Bochum, Germany.,Department of Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Jakob Zöllner
- Department of Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Felix Gerhardt
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Stephan Rosenkranz
- Department of Cardiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Roman Johannes Gertz
- Department of Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | | | | | - David Maintz
- Department of Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Alexander C Bunck
- Department of Radiology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
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26
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Eberhard M, McInnis M, de Perrot M, Lichtblau M, Ulrich S, Inci I, Opitz I, Frauenfelder T. Dual-Energy CT Pulmonary Angiography for the Assessment of Surgical Accessibility in Patients with Chronic Thromboembolic Pulmonary Hypertension. Diagnostics (Basel) 2022; 12:diagnostics12020228. [PMID: 35204319 PMCID: PMC8870807 DOI: 10.3390/diagnostics12020228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/14/2022] [Accepted: 01/16/2022] [Indexed: 12/04/2022] Open
Abstract
We assessed the value of dual-energy CT pulmonary angiography (CTPA) for classification of the level of disease in chronic thromboembolic pulmonary hypertension (CTEPH) patients compared to the surgical Jamieson classification and prediction of hemodynamic changes after pulmonary endarterectomy. Forty-three CTEPH patients (mean age, 57 ± 16 years; 18 females) undergoing CTPA prior to surgery were retrospectively included. “Proximal” and “distal disease” were defined as L1 and 2a (main and lobar pulmonary artery [PA]) and L2b-4 (lower lobe basal trunk to subsegmental PA), respectively. Three radiologists had a moderate interobserver agreement for the radiological classification of disease (k = 0.55). Sensitivity was 92–100% and specificity was 24–53% to predict proximal disease according to the Jamieson classification. A median of 9 segments/patient had CTPA perfusion defects (range, 2–18 segments). L1 disease had a greater decrease in the mean pulmonary artery pressure (p = 0.029) and pulmonary vascular resistance (p = 0.011) after surgery compared to patients with L2a to L3 disease. The extent of perfusion defects was not associated with the level of disease or hemodynamic changes after surgery (p > 0.05 for all). CTPA is highly sensitive for predicting the level of disease in CTEPH patients with a moderate interobserver agreement. The radiological level of disease is associated with hemodynamic improvement after surgery.
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Affiliation(s)
- Matthias Eberhard
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, 8091 Zurich, Switzerland;
- Radiology, Spitäler fmi AG, 3800 Interlaken, Switzerland
- Correspondence: ; Tel.: +41-44-255-2900; Fax: +41-44-255-1819
| | - Micheal McInnis
- Joint Department of Medical Imaging, University of Toronto, Toronto, ON M5T 1W5, Canada;
| | - Marc de Perrot
- Division of Thoracic Surgery, Princess Margaret Cancer Centre (Toronto General Hospital), University Health Network, Toronto, ON M5G 2A2, Canada;
| | - Mona Lichtblau
- Department of Pulmonology Zurich, University Hospital Zurich, 8091 Zurich, Switzerland; (M.L.); (S.U.)
| | - Silvia Ulrich
- Department of Pulmonology Zurich, University Hospital Zurich, 8091 Zurich, Switzerland; (M.L.); (S.U.)
| | - Ilhan Inci
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (I.I.); (I.O.)
| | - Isabelle Opitz
- Department of Thoracic Surgery, University Hospital Zurich, 8091 Zurich, Switzerland; (I.I.); (I.O.)
| | - Thomas Frauenfelder
- Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, 8091 Zurich, Switzerland;
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27
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Delcroix M, Torbicki A, Gopalan D, Sitbon O, Klok FA, Lang I, Jenkins D, Kim NH, Humbert M, Jais X, Vonk Noordegraaf A, Pepke-Zaba J, Brénot P, Dorfmuller P, Fadel E, Ghofrani HA, Hoeper MM, Jansa P, Madani M, Matsubara H, Ogo T, Grünig E, D'Armini A, Galie N, Meyer B, Corkery P, Meszaros G, Mayer E, Simonneau G. ERS statement on chronic thromboembolic pulmonary hypertension. Eur Respir J 2021; 57:13993003.02828-2020. [PMID: 33334946 DOI: 10.1183/13993003.02828-2020] [Citation(s) in RCA: 259] [Impact Index Per Article: 86.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 11/05/2020] [Indexed: 12/25/2022]
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare complication of acute pulmonary embolism, either symptomatic or not. The occlusion of proximal pulmonary arteries by fibrotic intravascular material, in combination with a secondary microvasculopathy of vessels <500 µm, leads to increased pulmonary vascular resistance and progressive right heart failure. The mechanism responsible for the transformation of red clots into fibrotic material remnants has not yet been elucidated. In patients with pulmonary hypertension, the diagnosis is suspected when a ventilation/perfusion lung scan shows mismatched perfusion defects, and confirmed by right heart catheterisation and vascular imaging. Today, in addition to lifelong anticoagulation, treatment modalities include surgery, angioplasty and medical treatment according to the localisation and characteristics of the lesions.This statement outlines a review of the literature and current practice concerning diagnosis and management of CTEPH. It covers the definitions, diagnosis, epidemiology, follow-up after acute pulmonary embolism, pathophysiology, treatment by pulmonary endarterectomy, balloon pulmonary angioplasty, drugs and their combination, rehabilitation and new lines of research in CTEPH.It represents the first collaboration of the European Respiratory Society, the International CTEPH Association and the European Reference Network-Lung in the pulmonary hypertension domain. The statement summarises current knowledge, but does not make formal recommendations for clinical practice.
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Affiliation(s)
- Marion Delcroix
- Clinical Dept of Respiratory Diseases, Pulmonary Hypertension Center, UZ Leuven, Leuven, Belgium .,BREATHE, Dept CHROMETA, KU Leuven, Leuven, Belgium.,Co-chair
| | - Adam Torbicki
- Dept of Pulmonary Circulation, Thrombo-embolic Diseases and Cardiology, Center of Postgraduate Medical Education, ECZ-Otwock, Otwock, Poland.,Section editors
| | - Deepa Gopalan
- Dept of Radiology, Imperial College Hospitals NHS Trusts, London, UK.,Section editors
| | - Olivier Sitbon
- Université Paris-Saclay; Inserm UMR_S 999, Service de Pneumologie, Hôpital Bicêtre (AP-HP), Le Kremlin-Bicêtre, France.,Section editors
| | - Frederikus A Klok
- Dept of Medicine - Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, The Netherlands.,Section editors
| | - Irene Lang
- Medical University of Vienna, Vienna, Austria.,Section editors
| | - David Jenkins
- Royal Papworth Hospital, Cambridge University Hospital, Cambridge, UK.,Section editors
| | - Nick H Kim
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California San Diego, La Jolla, CA, USA.,Section editors
| | - Marc Humbert
- Université Paris-Saclay; Inserm UMR_S 999, Service de Pneumologie, Hôpital Bicêtre (AP-HP), Le Kremlin-Bicêtre, France.,Section editors
| | - Xavier Jais
- Université Paris-Saclay; Inserm UMR_S 999, Service de Pneumologie, Hôpital Bicêtre (AP-HP), Le Kremlin-Bicêtre, France.,Section editors
| | - Anton Vonk Noordegraaf
- Dept of Pulmonary Medicine, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands.,Section editors
| | - Joanna Pepke-Zaba
- Royal Papworth Hospital, Cambridge University Hospital, Cambridge, UK.,Section editors
| | - Philippe Brénot
- Marie Lannelongue Hospital, Paris-South University, Le Plessis Robinson, France
| | - Peter Dorfmuller
- University of Giessen and Marburg Lung Center, German Center of Lung Research (DZL), Giessen, Germany.,Dept of Medicine, Imperial College London, London, UK.,Dept of Pneumology, Kerckhoff-Clinic Bad Nauheim, Bad Nauheim, Germany
| | - Elie Fadel
- Hannover Medical School, Hannover, Germany
| | - Hossein-Ardeschir Ghofrani
- University of Giessen and Marburg Lung Center, German Center of Lung Research (DZL), Giessen, Germany.,Dept of Medicine, Imperial College London, London, UK.,Dept of Pneumology, Kerckhoff-Clinic Bad Nauheim, Bad Nauheim, Germany
| | | | - Pavel Jansa
- 2nd Department of Medicine, Dept of Cardiovascular Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Michael Madani
- Sulpizio Cardiovascular Centre, University of California, San Diego, CA, USA
| | - Hiromi Matsubara
- National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Takeshi Ogo
- National Cerebral and Cardiovascular Centre, Osaka, Japan
| | - Ekkehard Grünig
- Thoraxklinik Heidelberg at Heidelberg University Hospital, Heidelberg, Germany
| | - Andrea D'Armini
- Unit of Cardiac Surgery, Intrathoracic Transplantation and Pulmonary Hypertension, University of Pavia School of Medicine, Foundation I.R.C.C.S. Policlinico San Matteo, Pavia, Italy
| | | | - Bernhard Meyer
- Institute for Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany
| | | | | | - Eckhard Mayer
- Dept of Thoracic Surgery, Kerckhoff Clinic Bad Nauheim, Bad Nauheim, Germany.,Equal contribution.,Co-chair
| | - Gérald Simonneau
- Université Paris-Saclay; Inserm UMR_S 999, Service de Pneumologie, Hôpital Bicêtre (AP-HP), Le Kremlin-Bicêtre, France.,Equal contribution.,Co-chair
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28
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Kligerman S, Hsiao A. Optimizing the diagnosis and assessment of chronic thromboembolic pulmonary hypertension with advancing imaging modalities. Pulm Circ 2021; 11:20458940211007375. [PMID: 34104420 PMCID: PMC8150458 DOI: 10.1177/20458940211007375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 12/10/2020] [Indexed: 02/05/2023] Open
Abstract
Imaging is key to nearly all aspects of chronic thromboembolic pulmonary hypertension including management for screening, assessing eligibility for pulmonary endarterectomy, and post-operative follow-up. While ventilation/perfusion scintigraphy, the gold standard technique for chronic thromboembolic pulmonary hypertension screening, can have excellent sensitivity, it can be confounded by other etiologies of pulmonary malperfusion, and does not provide structural information to guide operability assessment. Conventional computed tomography pulmonary angiography has high specificity, though findings of chronic thromboembolic pulmonary hypertension can be visually subtle and unrecognized. In addition, computed tomography pulmonary angiography can provide morphologic information to aid in pre-operative workup and assessment of other structural abnormalities. Advances in computed tomography imaging techniques, including dual-energy computed tomography and spectral-detector computed tomography, allow for improved sensitivity and specificity in detecting chronic thromboembolic pulmonary hypertension, comparable to that of ventilation/perfusion scans. Furthermore, these advanced computed tomography techniques, compared with conventional computed tomography, provide additional physiologic data from perfused blood volume maps and improved resolution to better visualize distal chronic thromboembolic pulmonary hypertension, an important consideration for balloon pulmonary angioplasty for inoperable patients. Electrocardiogram-synchronized techniques in electrocardiogram-gated computed tomography can also show further information regarding right ventricular function and structure. While the standard of care in the workup of chronic thromboembolic pulmonary hypertension includes a ventilation/perfusion scan, computed tomography pulmonary angiography, direct catheter angiography, echocardiogram, and coronary angiogram, in the future an electrocardiogram-gated dual-energy computed tomography angiography scan may enable a "one-stop" imaging study to guide diagnosis, operability assessment, and treatment decisions with less radiation exposure and cost than traditional chronic thromboembolic pulmonary hypertension imaging modalities.
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Affiliation(s)
- Seth Kligerman
- Cardiothoracic Imaging, University of California San Diego, La Jolla, CA, USA
| | - Albert Hsiao
- Cardiothoracic Imaging, University of California San Diego, La Jolla, CA, USA
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Remy-Jardin M, Ryerson CJ, Schiebler ML, Leung ANC, Wild JM, Hoeper MM, Alderson PO, Goodman LR, Mayo J, Haramati LB, Ohno Y, Thistlethwaite P, van Beek EJR, Knight SL, Lynch DA, Rubin GD, Humbert M. Imaging of pulmonary hypertension in adults: a position paper from the Fleischner Society. Eur Respir J 2021; 57:57/1/2004455. [PMID: 33402372 DOI: 10.1183/13993003.04455-2020] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/28/2020] [Indexed: 12/22/2022]
Abstract
Pulmonary hypertension (PH) is defined by a mean pulmonary artery pressure greater than 20 mmHg and classified into five different groups sharing similar pathophysiologic mechanisms, haemodynamic characteristics, and therapeutic management. Radiologists play a key role in the multidisciplinary assessment and management of PH. A working group was formed from within the Fleischner Society based on expertise in the imaging and/or management of patients with PH, as well as experience with methodologies of systematic reviews. The working group identified key questions focusing on the utility of CT, MRI, and nuclear medicine in the evaluation of PH: a) Is noninvasive imaging capable of identifying PH? b) What is the role of imaging in establishing the cause of PH? c) How does imaging determine the severity and complications of PH? d) How should imaging be used to assess chronic thromboembolic PH before treatment? e) Should imaging be performed after treatment of PH? This systematic review and position paper highlights the key role of imaging in the recognition, work-up, treatment planning, and follow-up of PH.
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Affiliation(s)
- Martine Remy-Jardin
- Dept of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, Lille, France.,Chair of the Fleischner Society writing committee of the position paper for imaging of pulmonary hypertension
| | - Christopher J Ryerson
- Dept of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada
| | - Mark L Schiebler
- Dept of Radiology, UW-Madison School of Medicine and Public Health, Madison, WI, USA
| | - Ann N C Leung
- Dept of Radiology, Stanford University Medical Center, Stanford, CA, USA
| | - James M Wild
- Division of Imaging, Dept of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK
| | - Marius M Hoeper
- Dept of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany
| | - Philip O Alderson
- Dept of Radiology, Saint Louis University School of Medicine, St Louis, MO, USA
| | | | - John Mayo
- Dept of Radiology, Vancouver General Hospital, Vancouver, BC, Canada
| | - Linda B Haramati
- Dept of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA
| | - Yoshiharu Ohno
- Dept of Radiology, Fujita Health University School of Medicine, Toyoake, Japan
| | | | - Edwin J R van Beek
- Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Shandra Lee Knight
- Dept of Library and Knowledge Services, National Jewish Health, Denver, CO, USA
| | - David A Lynch
- Dept of Radiology, National Jewish Health, Denver, CO, USA
| | - Geoffrey D Rubin
- Dept of Radiology, Duke University School of Medicine, Durham, NC, USA
| | - Marc Humbert
- Université Paris Saclay, Inserm UMR S999, Dept of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France.,Co-Chair of the Fleischner Society writing committee of the position paper for imaging of pulmonary hypertension
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30
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Remy-Jardin M, Ryerson CJ, Schiebler ML, Leung ANC, Wild JM, Hoeper MM, Alderson PO, Goodman LR, Mayo J, Haramati LB, Ohno Y, Thistlethwaite P, van Beek EJR, Knight SL, Lynch DA, Rubin GD, Humbert M. Imaging of Pulmonary Hypertension in Adults: A Position Paper from the Fleischner Society. Radiology 2021; 298:531-549. [PMID: 33399507 DOI: 10.1148/radiol.2020203108] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Pulmonary hypertension (PH) is defined by a mean pulmonary artery pressure greater than 20 mm Hg and classified into five different groups sharing similar pathophysiologic mechanisms, hemodynamic characteristics, and therapeutic management. Radiologists play a key role in the multidisciplinary assessment and management of PH. A working group was formed from within the Fleischner Society based on expertise in the imaging and/or management of patients with PH, as well as experience with methodologies of systematic reviews. The working group identified key questions focusing on the utility of CT, MRI, and nuclear medicine in the evaluation of PH: (a) Is noninvasive imaging capable of identifying PH? (b) What is the role of imaging in establishing the cause of PH? (c) How does imaging determine the severity and complications of PH? (d) How should imaging be used to assess chronic thromboembolic PH before treatment? (e) Should imaging be performed after treatment of PH? This systematic review and position paper highlights the key role of imaging in the recognition, work-up, treatment planning, and follow-up of PH. This article is a simultaneous joint publication in Radiology and European Respiratory Journal. The articles are identical except for stylistic changes in keeping with each journal's style. Either version may be used in citing this article. © 2021 RSNA and the European Respiratory Society. Online supplemental material is available for this article.
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Affiliation(s)
- Martine Remy-Jardin
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Christopher J Ryerson
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Mark L Schiebler
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Ann N C Leung
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - James M Wild
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Marius M Hoeper
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Philip O Alderson
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Lawrence R Goodman
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - John Mayo
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Linda B Haramati
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Yoshiharu Ohno
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Patricia Thistlethwaite
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Edwin J R van Beek
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Shandra Lee Knight
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - David A Lynch
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Geoffrey D Rubin
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
| | - Marc Humbert
- From the Department of Thoracic Imaging, Hôpital Calmette, Boulevard Jules Leclercq, 59037 Lille, France (M.R.J.); Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, Canada (C.J.R.); Department of Radiology, UW-Madison School of Medicine and Public Health, Madison, Wis (M.L.S.); Department of Radiology, Stanford University Medical Center, Stanford, Calif (A.N.C.L.); Division of Imaging, Department of Infection Immunity & Cardiovascular Disease, University of Sheffield, Sheffield, England (J.M.W.); Department of Respiratory Medicine, Hannover Medical School and German Centre of Lung Research (DZL), Hannover, Germany (M.M.H.); Department of Radiology, Saint Louis University School of Medicine, St Louis, Mo (P.O.A.); Department of Radiology, Medical College of Wisconsin, Milwaukee, Wis (L.R.G.); Department of Radiology, Vancouver General Hospital, Vancouver, Canada (J.M.); Department of Radiology and Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY (L.B.H.); Department of Radiology, Fujita Health University School of Medicine, Toyoake, Japan (Y.O.); Division of Cardiothoracic Surgery, University of California, San Diego, La Jolla, Calif (P.T.); Edinburgh Imaging, Queens Medical Research Institute, University of Edinburgh, Edinburgh, Scotland (E.J.R.v.B.); Department of Library and Knowledge Services (S.L.K.) and Department of Radiology (D.A.L.), National Jewish Health, Denver, Colo; Department of Radiology, Duke University School of Medicine, Durham, NC (G.D.R.); and Université Paris Saclay, Inserm UMR S999, Department of Pneumology, AP-HP, Pulmonary Hypertension Reference Center, Hôpital de Bicêtre, Le Kremlin Bicêtre, France (M.H.)
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Moradi F, Morris TA, Hoh CK. Perfusion Scintigraphy in Diagnosis and Management of Thromboembolic Pulmonary Hypertension. Radiographics 2020; 39:169-185. [PMID: 30620694 DOI: 10.1148/rg.2019180074] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a life-threatening complication of acute pulmonary embolism (PE). Because the treatment of CTEPH is markedly different from that of other types of pulmonary hypertension, lung ventilation-perfusion (V/Q) scintigraphy is recommended for the workup of patients with unexplained pulmonary hypertension. Lung V/Q scintigraphy is superior to CT pulmonary angiography for detecting CTEPH. Perfusion defect findings of CTEPH can be different from those of acute PE. Familiarity with the patterns of perfusion defects seen during the initial workup of CTEPH and the expected posttreatment changes seen at follow-up imaging is essential for accurate interpretation of V/Q scintigraphy findings. ©RSNA, 2019.
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Affiliation(s)
- Farshad Moradi
- From the Department of Radiology, Division of Nuclear Medicine (F.M., C.K.H.); and Division of Pulmonary, Critical Care, and Sleep Medicine (T.A.M.), University of California, San Diego, San Diego, Calif
| | - Timothy A Morris
- From the Department of Radiology, Division of Nuclear Medicine (F.M., C.K.H.); and Division of Pulmonary, Critical Care, and Sleep Medicine (T.A.M.), University of California, San Diego, San Diego, Calif
| | - Carl K Hoh
- From the Department of Radiology, Division of Nuclear Medicine (F.M., C.K.H.); and Division of Pulmonary, Critical Care, and Sleep Medicine (T.A.M.), University of California, San Diego, San Diego, Calif
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32
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Haramati A, Haramati LB. Imaging of Chronic Thromboembolic Disease. Lung 2020; 198:245-255. [PMID: 32166427 DOI: 10.1007/s00408-020-00344-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 02/28/2020] [Indexed: 12/19/2022]
Abstract
Acute pulmonary embolism (PE) is a leading cause of cardiovascular morbidity. The most common long-term complication of acute PE is chronic thromboembolic disease, a heterogenous entity which ranges from asymptomatic imaging sequelae to persistent symptoms. Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare disease that can develop in this population and represents the only treatable type of pulmonary hypertension. Recognition of the characteristic findings of chronic pulmonary embolism and CTEPH provides not only diagnostic information, but is also crucial for guiding therapy. The present state-of-the-art review focuses on the multimodality imaging features of chronic pulmonary embolism. Detailed description and illustrations of relevant imaging findings will be demonstrated for ventilation/perfusion (V/Q) scan, CT scan and Dual-Energy CT and MRI and features that distinguish chronic PE from common imaging mimics.
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Affiliation(s)
- Adina Haramati
- Department of Radiology, Northwell Health, Manhasset, NY, USA.
| | - Linda B Haramati
- Departments of Radiology and Internal Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY, USA
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33
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Lysdahlgaard S, Hess S, Gerke O, Weber Kusk M. A systematic literature review and meta-analysis of spectral CT compared to scintigraphy in the diagnosis of acute and chronic pulmonary embolisms. Eur Radiol 2020; 30:3624-3633. [PMID: 32112117 DOI: 10.1007/s00330-020-06735-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 12/20/2019] [Accepted: 02/07/2020] [Indexed: 01/26/2023]
Abstract
PURPOSE To examine the diagnostic accuracy of spectral CT pulmonary angiography (S-CTPA) using ventilation-perfusions lung scintigraphy (V/Q-scan) as a reference standard in the diagnosis of acute or chronic pulmonary embolism (APE/CPE) and chronic thromboembolic pulmonary hypertension (CTEPH). METHODS PubMed, Embase, Scopus, and Web of Science were searched for the period from 1 Jan 2006 to 7 Feb 2019; eligible studies had > 10 patients over 18 years old, a diagnostic outcome of PE or CTEPH, and used V/Q scan as a reference standard. Bias and applicability were assessed using QUADAS-2 tools. Sensitivities, specificities, and predictive values were noted or calculated from available information. Meta-analysis employed a fixed-effects model of Mantel and Haenszel. Heterogeneity was assessed with I-squared statistics. RESULTS Four hundred ninety-three unique records were identified. Following screening by title, 53 studies were included in the abstract and full-text assessment. A total of six articles were included; four were suitable for a meta-analysis. Pooled sensitivity was 94.2% (95% CI, 88.3-100%), pooled specificity was 88.5% (95% CI, 81.3-95.6%), and positive and negative predictive values were 87.8% (95% CI, 80.3-95.4%) and 94.5% (95% CI, 89.3-99.7%), respectively. CONCLUSION Data on S-CTPA for PE/CTEPH remains promising, but limited; only small studies with methodological issues are available. Evidence is best for CPE/CTEPH whereas no firm conclusions are possible for APE. There is a need for larger, prospective studies with a robust composite reference standard including state-of-the-art CTPA and V/Q-scans. KEY POINTS • S-CTPA has high sensitivity and specificity for perfusion defects in patients with PE or CPETH. • Methodological issues and diversity of reference standards were found in the small number of included studies. • There is a need for larger prospective studies with more robust composite reference standards.
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Affiliation(s)
- Simon Lysdahlgaard
- Department of Radiology and Nuclear Medicine, University Hospital of Southwest Jutland, Esbjerg, Denmark.
| | - Søren Hess
- Department of Radiology and Nuclear Medicine, University Hospital of Southwest Jutland, Esbjerg, Denmark
- Department of Regional Health Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Oke Gerke
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark
- Department of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
| | - Martin Weber Kusk
- Department of Radiology and Nuclear Medicine, University Hospital of Southwest Jutland, Esbjerg, Denmark
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34
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Ozer Gokaslan C, Onrat E, Gokaslan S. Evaluation of the CT imaging findings in the diagnosis of pulmonary hypertension due to chronic thromboembolism. CLINICAL RESPIRATORY JOURNAL 2019; 14:228-234. [PMID: 31797559 DOI: 10.1111/crj.13120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 09/25/2019] [Accepted: 11/27/2019] [Indexed: 01/09/2023]
Abstract
PURPOSE Chronic thromboembolic pulmonary hypertension (CTEPH) is the only pulmonary hypertension that can be treated surgically. Multidedector computerized tomography angiography (MDCTA) is considered as an important tool. In this study, the important CT findings of CTEPH and the vascular MDCTA findings of CTEPH were classified as central, peripheral, central and peripheral. The aim of this study was to investigate the relationship between these groups with parenchymal and hemodynamic findings. MATERIALS AND METHODS MDCTA examinations of 26 patients who had been diagnosed with CTEPH were retrospectively reviewed. Vascular, cardiac and parenchymal findings were examined in MDCTA. Patients were divided into three groups as peripheral, central and peripheral and central chronic thromboembolism. The relationship between these groups with demographic, vascular, parenchymal and hemodynamic findings was investigated. RESULTS The most common vascular finding was the wall filling defects attached to the lobar and/or segmental arterial walls, while the parenchymal finding was the fibrotic shrinkage. There were no statistically significant differences between the three groups compared to parenchymal findings which are mosaic pattern, brochiectasis, fibrotic changes and atelectasis, pulmonary artery diameter, right atrial diameter and RV/LV ratio. Age and sex were not different in patients between the three groups. CONCLUSION The results of the this study confirm the important role of MDCTA in the evaluation of vascular, cardiac and parenchymal findings in the patients with CTEPH and identifying patients that would most benefit from surgical treatment by visualization of the segmental and subsegmental branches of the pulmonary arteries.
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Affiliation(s)
- Cigdem Ozer Gokaslan
- Department of Radiology, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyon, Turkey
| | - Ersel Onrat
- Department of Cardiology, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyon, Turkey
| | - Serkan Gokaslan
- Department of Cardiology, Afyonkarahisar Health Sciences University, Faculty of Medicine, Afyon, Turkey
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35
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Helmersen D, Provencher S, Hirsch AM, Van Dam A, Dennie C, De Perrot M, Mielniczuk L, Hirani N, Chandy G, Swiston J, Lien D, Kim NH, Delcroix M, Mehta S. Diagnosis of chronic thromboembolic pulmonary hypertension: A Canadian Thoracic Society clinical practice guideline update. CANADIAN JOURNAL OF RESPIRATORY, CRITICAL CARE, AND SLEEP MEDICINE 2019. [DOI: 10.1080/24745332.2019.1631663] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Doug Helmersen
- Pulmonary Hypertension Program, Division of Respiratory Medicine, Peter Lougheed Centre, University of Calgary, Calgary, Alberta, Canada
| | - Steeve Provencher
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université de Laval, Quebec, Quebec, Canada
| | - Andrew M. Hirsch
- Centre for Pulmonary Vascular Disease, Sir Mortimer B Davis Jewish General Hospital, McGill University, Montreal, Quebec, Canada
| | - Anne Van Dam
- Canadian Thoracic Society, Ottawa, Ontario, Canada
| | - Carole Dennie
- Thoracic and Cardiac Imaging Sections, The Ottawa Hospital Cardiac Radiology, University of Ottawa Heart Institute, University of Ottawa, Ottawa, Ontario, Canada
| | - Marc De Perrot
- Division of Thoracic Surgery, Toronto General Hospital, Toronto Pulmonary Endarterectomy Program, University of Toronto, Toronto, Ontario, Canada
| | - Lisa Mielniczuk
- University of Ottawa Heart Institute Pulmonary Hypertension Clinic, Cardiology Division, University of Ottawa, Ottawa, Ontario, Canada
| | - Naushad Hirani
- Pulmonary Hypertension Program, Division of Respiratory Medicine, Peter Lougheed Centre, University of Calgary, Calgary, Alberta, Canada
| | - George Chandy
- University of Ottawa Heart Institute Pulmonary Hypertension Clinic, Respirology Division, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - John Swiston
- Pulmonary Hypertension Program, Respirology Division, Vancouver General Hospital, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Dale Lien
- University of Alberta Pulmonary Hypertension Clinic, University of Alberta, Edmonton, Alberta, Canada
| | - Nick H. Kim
- Pulmonary Vascular Medicine, University of California San Diego, California, U.S.A.
| | - Marion Delcroix
- Centre for Pulmonary Vascular Diseases, Department of Respiratory Diseases, University Hospitals Leuven, Leuven, Belgium
| | - Sanjay Mehta
- Southwest Ontario Pulmonary Hypertension Clinic, London Health Sciences Centre, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
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36
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Xu S, Yang J, Zhu Y, Xu S, Liu J, Deng Y, Wei L, Yang M, Huang X, Cao B, Zhang C, Zhao F, Liu X, Xing X, Li Z. CTPA, DECT, MRI, V/Q Scan, and SPECT/CT V/Q for the noninvasive diagnosis of chronic thromboembolic pulmonary hypertension: A protocol for systemic review and network meta-analysis of diagnostic test accuracy. Medicine (Baltimore) 2019; 98:e16787. [PMID: 31441850 PMCID: PMC6716738 DOI: 10.1097/md.0000000000016787] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 07/18/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND To determine the diagnostic accuracy of techniques with chronic thromboembolic pulmonary hypertension (CTEPH) patients via a protocol for systemic review and network meta-analysis. METHODS We will search PubMed, EMBASE, Web of Science, and Google Scholar from inception to October 1, 2018. The reference lists of the retrieved articles are also consulted. Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2) will be used to assess the risk of bias in each study. The direct meta-analyses, network meta-analyses, and ranking of competing diagnostic tests will be used by STATA 12.0 and WINBUGS 1.4. Heterogeneity and inconsistency are assessed. RESULTS This study is ongoing, will be submitted to a peer-reviewed journal publication once completed. CONCLUSION This study will provide a comprehensive evidence summary of diagnostic test accuracy in detecting the CTEPH, and can help patients and clinicians to select appropriate or best diagnostic test. ETHICS AND COMMUNICATION No ethical approval and patient consent are required, because it is based on published researches. PROSPERO REGISTRATION NUMBER CRD42019121279.
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Affiliation(s)
- Shuanglan Xu
- Department of Respiratory Medicine, The Fourth Affiliated Hospital of Kunming Medical University, The Second People's Hospital of Yunnan Province
| | - Jiao Yang
- First Department of Respiratory Medicine, The First Affiliated Hospital of Kunming Medical University
| | - Yun Zhu
- The People's Hospital of Yuxi City, The 6th Affiliated Hospital of Kunming Medical University, Yuxi
| | - Shuangyan Xu
- Department of Dermatology, The Second Affiliated Hospital of Kunming Medical University
| | - Jie Liu
- Department of Respiratory Medicine, The Fourth Affiliated Hospital of Kunming Medical University, The Second People's Hospital of Yunnan Province
| | - Yishu Deng
- Department of Respiratory Medicine, The Fourth Affiliated Hospital of Kunming Medical University, The Second People's Hospital of Yunnan Province
| | - Li Wei
- Department of Respiratory Medicine, The Fourth Affiliated Hospital of Kunming Medical University, The Second People's Hospital of Yunnan Province
| | - Mei Yang
- Department of Respiratory Medicine, The Fourth Affiliated Hospital of Kunming Medical University, The Second People's Hospital of Yunnan Province
| | - Xiaoxian Huang
- Department of Respiratory Medicine, The Fourth Affiliated Hospital of Kunming Medical University, The Second People's Hospital of Yunnan Province
| | - Bing Cao
- Department of Respiratory Medicine, The Fourth Affiliated Hospital of Kunming Medical University, The Second People's Hospital of Yunnan Province
| | - Chunfang Zhang
- Department of Respiratory Medicine, The Fourth Affiliated Hospital of Kunming Medical University, The Second People's Hospital of Yunnan Province
| | - Fangyun Zhao
- Department of Pharmacy, Yan’an Hospital Affiliated to Kunming Medical University
| | - Xing Liu
- Department of Anatomy, Basic Medical Sciences of Kunming Medical University, Kunming, Yunnan, China
| | - Xiqian Xing
- Department of Respiratory Medicine, The Fourth Affiliated Hospital of Kunming Medical University, The Second People's Hospital of Yunnan Province
| | - Zhongming Li
- Department of Anatomy, Basic Medical Sciences of Kunming Medical University, Kunming, Yunnan, China
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37
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Shahin Y, Johns C, Karunasaagarar K, Kiely DG, Swift AJ. IodiNe Subtraction mapping in the diagnosis of Pulmonary chronIc thRomboEmbolic disease (INSPIRE): Rationale and methodology of a cross-sectional observational diagnostic study. Contemp Clin Trials Commun 2019; 15:100417. [PMID: 31388600 PMCID: PMC6667787 DOI: 10.1016/j.conctc.2019.100417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 06/17/2019] [Accepted: 07/18/2019] [Indexed: 10/27/2022] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is a severe but treatable disease that is commonly underdiagnosed. Computed tomography lung subtraction iodine mapping (CT-LSIM) in addition to standard CT pulmonary angiography (CTPA) may improve the evaluation of suspected chronic pulmonary embolism and improve the diagnostic pick up rate. We aim to recruit 100 patients suspected of having CTEPH and perform CT-LSIM scans in addition to the current gold standard test of nuclear medicine test (lung single photon emission computed tomography (SPECT) imaging) as a pilot study which will contribute to and inform the definitive trial. The diagnostic accuracy of CT-LSIM and lung SPECT will be compared. The primary outcome of the full definitive study is non-inferiority of CT-LSIM versus lung SPECT imaging.
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Affiliation(s)
- Yousef Shahin
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK.,Department of Clinical Radiology, Sheffield Teaching Hospitals, Sheffield, UK.,INSIGNEO, Institute for in Silico Medicine, University of Sheffield, UK
| | - Christopher Johns
- Department of Clinical Radiology, Sheffield Teaching Hospitals, Sheffield, UK
| | | | - David G Kiely
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK.,Sheffield Pulmonary Vascular Disease Unit, Royal Hallamshire Hospital, Sheffield, UK.,INSIGNEO, Institute for in Silico Medicine, University of Sheffield, UK
| | - Andy J Swift
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK.,Department of Clinical Radiology, Sheffield Teaching Hospitals, Sheffield, UK.,INSIGNEO, Institute for in Silico Medicine, University of Sheffield, UK
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38
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Rajiah P, Tanabe Y, Partovi S, Moore A. State of the art: utility of multi-energy CT in the evaluation of pulmonary vasculature. Int J Cardiovasc Imaging 2019; 35:1509-1524. [PMID: 31049753 DOI: 10.1007/s10554-019-01615-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 04/25/2019] [Indexed: 12/14/2022]
Abstract
Multi-energy computed tomography (MECT) refers to acquisition of CT data at multiple energy levels (typically two levels) using different technologies such as dual-source, dual-layer and rapid tube voltage switching. In addition to conventional/routine diagnostic images, MECT provides additional image sets including iodine maps, virtual non-contrast images, and virtual monoenergetic images. These image sets provide tissue/material characterization beyond what is possible with conventional CT. MECT provides invaluable additional information in the evaluation of pulmonary vasculature, primarily by the assessment of pulmonary perfusion. This functional information provided by the MECT is complementary to the morphological information from a conventional CT angiography. In this article, we review the technique and applications of MECT in the evaluation of pulmonary vasculature.
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Affiliation(s)
- Prabhakar Rajiah
- Cardiothoracic Imaging Division, Department of Radiology, University of Texas Southwestern Medical Center, E6.122G, 5323 Harry Hines Boulevard, Mail Code 9316, Dallas, TX, 75390-8896, USA.
| | - Yuki Tanabe
- Cardiothoracic Imaging Division, Department of Radiology, University of Texas Southwestern Medical Center, E6.122G, 5323 Harry Hines Boulevard, Mail Code 9316, Dallas, TX, 75390-8896, USA
- Ehime University Graduate School of Medicine, Ehime, Japan
| | - Sasan Partovi
- Interventional Radiology Section, Imaging Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Alastair Moore
- Department of Radiology, Baylor University Medical Center, Dallas, TX, USA
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39
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Fukuda K, Date H, Doi S, Fukumoto Y, Fukushima N, Hatano M, Ito H, Kuwana M, Matsubara H, Momomura SI, Nishimura M, Ogino H, Satoh T, Shimokawa H, Yamauchi-Takihara K, Tatsumi K, Ishibashi-Ueda H, Yamada N, Yoshida S, Abe K, Ogawa A, Ogo T, Kasai T, Kataoka M, Kawakami T, Kogaki S, Nakamura M, Nakayama T, Nishizaki M, Sugimura K, Tanabe N, Tsujino I, Yao A, Akasaka T, Ando M, Kimura T, Kuriyama T, Nakanishi N, Nakanishi T, Tsutsui H. Guidelines for the Treatment of Pulmonary Hypertension (JCS 2017/JPCPHS 2017). Circ J 2019; 83:842-945. [PMID: 30853682 DOI: 10.1253/circj.cj-66-0158] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Keiichi Fukuda
- Department of Cardiology, Keio University School of Medicine
| | - Hiroshi Date
- Department of Thoracic Surgery, Graduate School of Medicine, Kyoto University
| | - Shozaburo Doi
- Department of Pediatrics, Perinatal and Maternal Medicine, Graduate School, Tokyo Medical and Dental University
| | - Yoshihiro Fukumoto
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kurume University School of Medicine
| | - Norihide Fukushima
- Department of Transplant Medicine, National Cerebral and Cardiovascular Center
| | - Masaru Hatano
- Department of Cardiovascular Medicine/Therapeutic Strategy for Heart Failure, The University of Tokyo Hospital
| | - Hiroshi Ito
- Department of Cardiovascular Medicine, Field of Functional Physiology, Okayama University Graduate School of Medicine
| | - Masataka Kuwana
- Department of Allergy and Rheumatology, Nippon Medical School
| | - Hiromi Matsubara
- Department of Clinical Science, National Hospital Organization Okayama Medical Center
| | - Shin-Ichi Momomura
- Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University
| | - Masaharu Nishimura
- Department of Respiratory Medicine, Hokkaido University Graduate School of Medicine
| | - Hitoshi Ogino
- Department of Cardiovascular Surgery, Tokyo Medical University
| | - Toru Satoh
- Internal Medicine II, Kyorin University School of Medicine
| | - Hiroaki Shimokawa
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Keiko Yamauchi-Takihara
- Health and Counseling Center and Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University
| | | | | | - Shunji Yoshida
- Department of Rheumatology and Infectious Diseases, Fujita Health University Hospital
| | - Kohtaro Abe
- Department of Cardiovascular Medicine, Kyushu University Hospital
| | - Aiko Ogawa
- Department of Clinical Science, National Hospital Organization Okayama Medical Center
| | - Takeshi Ogo
- Division of Pulmonary Circulation, Department of Cardiovascular Medicine/Department of Advanced Medicine for Pulmonary Hypertension, National Cerebral and Cardiovascular Center
| | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine
| | | | | | - Shigetoyo Kogaki
- Department of Pediatrics and Neonatology, Osaka General Medical Center
| | | | - Tomotaka Nakayama
- Department of Pediatrics, Toho University Medical Center Omori Hospital
| | - Mari Nishizaki
- Department of Rehabilitation, National Hospital Organization, Okayama Medical Center
| | - Koichiro Sugimura
- Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine
| | - Nobuhiro Tanabe
- Department of Advanced Medicine in Pulmonary Hypertension, Graduate School of Medicine, Chiba University
| | - Ichizo Tsujino
- Department of Respiratory Medicine, Faculty of Medicine and Graduate School of Medicine, Hokkaido University
| | - Atsushi Yao
- Division for Health Service Promotion, The University of Tokyo
| | - Takashi Akasaka
- Department of Cardiovascular Medicine, Wakayama Medical University
| | - Motomi Ando
- Daiyukai General Hospital Cardiovascular Center
| | - Takeshi Kimura
- Department Cardiovascular Medicine, Graduate School of Medicine and Faculty of Medicine, Kyoto University
| | | | | | - Toshio Nakanishi
- Department of Pediatric Cardiology, Tokyo Women's Medical University
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Kyushu University Graduate School of Medical Sciences
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Nowroozpoor A, Malekmohammad M, Seyyedi SR, Hashemian SM. Pulmonary Hypertension in Intensive Care Units: An Updated Review. TANAFFOS 2019; 18:180-207. [PMID: 32411259 PMCID: PMC7210574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pulmonary hypertension (PH) is a condition associated with high morbidity and mortality. Patients with PH who require critical care usually have severe right ventricular (RV) dysfunction. Although different groups of PH have different etiologies, pulmonary vascular dysfunction is common in these groups. PH can lead to increased pulmonary artery pressure, which can ultimately cause RV failure. Clinicians should be familiar with the presentations of this disease and diagnostic tools. The contributing factors, if present (e.g., sepsis), and coexisting conditions (e.g., arrhythmias) should be identified and addressed accordingly. The preload should be optimized by fluid administration, diuretics, and dialysis, if necessary. On the other hand, the RV afterload should be reduced to improve the RV function with pulmonary vasodilators, such as prostacyclins, inhaled nitric oxide, and phosphodiesterase type 5 inhibitors, especially in group 1 PH. Inotropes are also used to improve RV contractility, and if inadequate, use of ventricular assist devices and extracorporeal life support should be considered in suitable candidates. Moreover, vasopressors should be used to maintain systemic blood pressure, albeit cautiously, as they increase the RV afterload. Measures should be also taken to ensure adequate oxygenation. However, mechanical ventilation is avoided in RV failure. In this study, we reviewed the pathophysiology, manifestations, diagnosis, monitoring, and management strategies of PH, especially in intensive care units.
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Affiliation(s)
- Armin Nowroozpoor
- Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Malekmohammad
- Tracheal Diseases Research Center, National Research Institute of Tuberculosis and Lung Disease (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyyed Reza Seyyedi
- Lung Transplantation Research Center, Department of Cardiology, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammadreza Hashemian
- Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran,,Correspondence to: Hashemian SMR, Address: Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran Email address:
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Johns CS, Wild JM, Rajaram S, Swift AJ, Kiely DG. Current and emerging imaging techniques in the diagnosis and assessment of pulmonary hypertension. Expert Rev Respir Med 2019; 12:145-160. [PMID: 29261337 DOI: 10.1080/17476348.2018.1420478] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Pulmonary hypertension (PH) is a challenging condition to diagnose and treat. Over the last two decades, there have been significant advances in therapeutic approaches and imaging technologies. Current guidelines emphasize the importance of cardiac catheterization; however, the increasing availability of non-invasive imaging has the potential to improve diagnostic rates, whilst providing additional information on patient phenotypes. Areas covered: This review discusses the role of imaging in the diagnosis, prognostic assessment and follow-up of patients with PH. Imaging methods, ranging from established investigations (chest radiography, echocardiography, nuclear medicine and computerized tomography (CT)), to emerging modalities (dual energy CT, magnetic resonance imaging (MRI), optical coherence tomography and positron emission tomography (PET)) are reviewed. The value and limitations of the clinical utility of these imaging modalities and their potential clinical application are reviewed. Expert commentary: Imaging plays a key role in the diagnosis and classification of pulmonary hypertension. It also provides valuable prognostic information and emerging evidence supports a role for serial assessments. The authors anticipate an increasing role for imaging in the pulmonary hypertension clinic. This will reduce the need for invasive investigations, whilst providing valuable insights that will improve our understanding of disease facilitate a more targeted approach to treatment.
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Affiliation(s)
| | - Jim M Wild
- a Academic Radiology , The University of Sheffield , Sheffield , UK
| | - Smitha Rajaram
- b Sheffield Pulmonary Vascular Disease Unit , Sheffield Teaching Hospitals , Sheffield , UK
| | - Andy J Swift
- a Academic Radiology , The University of Sheffield , Sheffield , UK
| | - David G Kiely
- b Sheffield Pulmonary Vascular Disease Unit , Sheffield Teaching Hospitals , Sheffield , UK
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Masy M, Giordano J, Petyt G, Hossein-Foucher C, Duhamel A, Kyheng M, De Groote P, Fertin M, Lamblin N, Bervar JF, Remy J, Remy-Jardin M. Dual-energy CT (DECT) lung perfusion in pulmonary hypertension: concordance rate with V/Q scintigraphy in diagnosing chronic thromboembolic pulmonary hypertension (CTEPH). Eur Radiol 2018; 28:5100-5110. [PMID: 29846802 DOI: 10.1007/s00330-018-5467-2] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 03/29/2018] [Accepted: 04/09/2018] [Indexed: 01/15/2023]
Abstract
OBJECTIVES To evaluate the concordance between DECT perfusion and ventilation/perfusion (V/Q) scintigraphy in diagnosing chronic thromboembolic pulmonary hypertension (CTEPH). METHODS Eighty patients underwent V/Q scintigraphy and DECT perfusion on a 2nd- and 3rd-generation dual-source CT system. The imaging criteria for diagnosing CTEPH relied on at least one segmental triangular perfusion defect on DECT perfusion studies and V/Q mismatch on scintigraphy examinations. RESULTS Based on multidisciplinary expert decisions that did not include DECT perfusion, 36 patients were diagnosed with CTEPH and 44 patients with other aetiologies of PH. On DECT perfusion studies, there were 35 true positives, 6 false positives and 1 false negative (sensitivity 0.97, specificity 0.86, PPV 0.85, NPV 0.97). On V/Q scans, there were 35 true positives and 1 false negative (sensitivity 0.97, specificity 1, PPV 1, NPV 0.98). There was excellent agreement between CT perfusion and scintigraphy in diagnosing CTEPH (kappa value 0.80). Combined information from DECT perfusion and CT angiographic images enabled correct reclassification of the 6 false positives and the unique false negative case of DECT perfusion. CONCLUSION There is excellent agreement between DECT perfusion and V/Q scintigraphy in diagnosing CTEPH. The diagnostic accuracy of DECT perfusion is reinforced by the morpho-functional analysis of data sets. KEY POINTS • Chronic thromboembolic pulmonary hypertension (CTEPH) is potentially curable by surgery. • The triage of patients with pulmonary hypertension currently relies on scintigraphy. • Dual-energy CT (DECT) can provide standard diagnostic information and lung perfusion from a single acquisition. • There is excellent agreement between DECT perfusion and scintigraphy in separating CTEPH and non-CTEPH patients.
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Affiliation(s)
- Matthieu Masy
- Department of Thoracic Imaging, Calmette Hospital (EA 2694); CHRU et Université de Lille 2 Nord de France, F-59000, Lille, France
| | - Jessica Giordano
- Department of Thoracic Imaging, Calmette Hospital (EA 2694); CHRU et Université de Lille 2 Nord de France, F-59000, Lille, France
| | - Grégory Petyt
- Department of Nuclear Medicine; Salengro Hospital, University of Lille, CHU Lille, F-59000, Lille, France
| | - Claude Hossein-Foucher
- Department of Nuclear Medicine; Salengro Hospital, University of Lille, CHU Lille, F-59000, Lille, France
| | - Alain Duhamel
- Department of Biostatistics (EA 2694), CHRU et Université de Lille 2 Nord de France, F-59000, Lille, France
| | - Maeva Kyheng
- Department of Biostatistics (EA 2694), CHRU et Université de Lille 2 Nord de France, F-59000, Lille, France
| | - Pascal De Groote
- Department of Cardiology; Cardiology Hospital, University of Lille, CHU Lille, F-59000, Lille, France
- INSERM U1167, Institut Pasteur de Lille, F-59000, Lille, France
| | - Marie Fertin
- Department of Cardiology; Cardiology Hospital, University of Lille, CHU Lille, F-59000, Lille, France
- INSERM U1167, Institut Pasteur de Lille, F-59000, Lille, France
| | - Nicolas Lamblin
- Department of Cardiology; Cardiology Hospital, University of Lille, CHU Lille, F-59000, Lille, France
- INSERM U1167, Institut Pasteur de Lille, F-59000, Lille, France
| | - Jean-François Bervar
- Department of Pulmonology, Calmette Hospital; University of Lille, CHU Lille, F-59000, Lille, France
| | - Jacques Remy
- Department of Thoracic Imaging, Calmette Hospital (EA 2694); CHRU et Université de Lille 2 Nord de France, F-59000, Lille, France
| | - Martine Remy-Jardin
- Department of Thoracic Imaging, Calmette Hospital (EA 2694); CHRU et Université de Lille 2 Nord de France, F-59000, Lille, France.
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Madani M, Ogo T, Simonneau G. The changing landscape of chronic thromboembolic pulmonary hypertension management. Eur Respir Rev 2017; 26:26/146/170105. [PMID: 29263176 PMCID: PMC9488650 DOI: 10.1183/16000617.0105-2017] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 11/25/2017] [Indexed: 01/09/2023] Open
Abstract
For patients with chronic thromboembolic pulmonary hypertension (CTEPH), the current standard of care involves surgical removal of fibro-thrombotic obstructions by pulmonary endarterectomy. While this approach has excellent outcomes, significant proportions of patients are not eligible for surgery or suffer from persistent/recurrent pulmonary hypertension after the procedure. The availability of balloon pulmonary angioplasty and the approval of the first medical therapy for use in CTEPH have significantly improved the outlook for patients ineligible for pulmonary endarterectomy. In this comprehensive review, we discuss the latest developments in the rapidly evolving field of CTEPH. These include improvements in imaging modalities and advances in surgical and interventional techniques, which have broadened the range of patients who may benefit from such procedures. The efficacy and safety of targeted medical therapies in CTEPH patients are also discussed, particularly the encouraging data from the recent MERIT-1 trial, which demonstrated the beneficial impact of using macitentan to treat patients with inoperable CTEPH, including those on background therapy. As the treatment options for CTEPH improve, hybrid management involving more than one intervention in the same patient may become a viable option in the near future. Management of CTEPH is evolving rapidly, leading to improved patient outcomeshttp://ow.ly/rHrt30gUQWX
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Donahoe L, Vanderlaan R, Thenganatt J, McRae K, Bykova A, Moric J, Granton J, de Perrot M. Symptoms Are More Useful Than Echocardiography in Patient Selection for Pulmonary Endarterectomy. Ann Thorac Surg 2017; 104:1179-1185. [DOI: 10.1016/j.athoracsur.2017.05.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 04/02/2017] [Accepted: 05/08/2017] [Indexed: 11/29/2022]
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Memon HA, Lin CH, Guha A. Chronic Thromboembolic Pulmonary Hypertension: Pearls and Pitfalls of Diagnosis. Methodist Debakey Cardiovasc J 2017; 12:199-204. [PMID: 28289494 DOI: 10.14797/mdcj-12-4-199] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Chronic thromboembolic pulmonary hypertension (CTEPH) is characterized by chronic obstruction of major pulmonary arteries by organized thromboembolic material. Untreated CTEPH can result in pulmonary hypertension and eventually right heart failure, yet it is the only form of pulmonary hypertension that is potentially curable with surgical or catheter-based intervention. While early diagnosis is key to increasing the likelihood of successful treatment, CTEPH remains largely underdiagnosed. This article reviews the role of echocardiogram, ventilation/perfusion scan, and other available modalities in the diagnosis of CTEPH.
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Affiliation(s)
| | - C Huie Lin
- Houston Methodist Hospital, Houston, Texas
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Ohno Y, Koyama H, Lee HY, Miura S, Yoshikawa T, Sugimura K. Contrast-enhanced CT- and MRI-based perfusion assessment for pulmonary diseases: basics and clinical applications. Diagn Interv Radiol 2017; 22:407-21. [PMID: 27523813 DOI: 10.5152/dir.2016.16123] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Assessment of regional pulmonary perfusion as well as nodule and tumor perfusions in various pulmonary diseases are currently performed by means of nuclear medicine studies requiring radioactive macroaggregates, dual-energy computed tomography (CT), and dynamic first-pass contrast-enhanced perfusion CT techniques and unenhanced and dynamic first-pass contrast enhanced perfusion magnetic resonance imaging (MRI), as well as time-resolved three-dimensional or four-dimensional contrast-enhanced magnetic resonance angiography (MRA). Perfusion scintigraphy, single-photon emission tomography (SPECT) and SPECT fused with CT have been established as clinically available scintigraphic methods; however, they are limited by perfusion information with poor spatial resolution and other shortcomings. Although positron emission tomography with 15O water can measure absolute pulmonary perfusion, it requires a cyclotron for generation of a tracer with an extremely short half-life (2 min), and can only be performed for academic purposes. Therefore, clinicians are concentrating their efforts on the application of CT-based and MRI-based quantitative and qualitative perfusion assessment to various pulmonary diseases. This review article covers 1) the basics of dual-energy CT and dynamic first-pass contrast-enhanced perfusion CT techniques, 2) the basics of time-resolved contrast-enhanced MRA and dynamic first-pass contrast-enhanced perfusion MRI, and 3) clinical applications of contrast-enhanced CT- and MRI-based perfusion assessment for patients with pulmonary nodule, lung cancer, and pulmonary vascular diseases. We believe that these new techniques can be useful in routine clinical practice for not only thoracic oncology patients, but also patients with different pulmonary vascular diseases.
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Affiliation(s)
- Yoshiharu Ohno
- Division of Functional and Diagnostic Imaging Research, Department of Radiology and Advanced Biomedical Imaging Research Center, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.
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Xu QX, Yang YH, Geng J, Zhai ZG, Gong JN, Li JF, Tang X, Wang C. Clinical Study of Acute Vasoreactivity Testing in Patients with Chronic Thromboembolic Pulmonary Hypertension. Chin Med J (Engl) 2017; 130:382-391. [PMID: 28218209 PMCID: PMC5324372 DOI: 10.4103/0366-6999.199829] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND The clinical significance of acute vasoreactivity testing (AVT) in patients with chronic thromboembolic pulmonary hypertension (CTEPH) remains unclear. We analyzed changes in hemodynamics and oxygenation dynamics indices after AVT in patients with CTEPH using patients with pulmonary arterial hypertension (PAH) as controls. METHODS We analyzed retrospectively the results of AVT in 80 patients with PAH and 175 patients with CTEPH registered in the research database of Beijing Chao-Yang Hospital between October 2005 and August 2014. Demographic variables, cardiopulmonary indicators, and laboratory findings were compared in these two subgroups. A long-term follow-up was conducted in patients with CTEPH. Between-group comparisons were performed using the independent-sample t-test or the rank sum test, within-group comparisons were conducted using the paired t-test or the Wilcoxon signed-rank test, and count data were analyzed using the Chi-squared test. Survival was estimated using the Kaplan-Meier method and log-rank test. RESULTS The rates of positive response to AVT were similar in the CTEPH (25/175, 14.3%) and PAH (9/80, 11.3%) groups (P > 0.05). Factors significantly associated a positive response to AVT in the CTEPH group were level of N-terminal pro-brain natriuretic peptide (≤1131.000 ng/L), mean pulmonary arterial pressure (mPAP, ≤44.500 mmHg), pulmonary vascular resistance (PVR, ≤846.500 dyn·s-1·m-5), cardiac output (CO, ≥3.475 L/min), and mixed venous oxygen partial pressure (PvO2, ≥35.150 mmHg). Inhalation of iloprost resulted in similar changes in mean blood pressure, mPAP, PVR, systemic vascular resistance, CO, arterial oxygen saturation (SaO2), mixed venous oxygen saturation, partial pressure of oxygen in arterial blood (PaO2), PvO2, and intrapulmonary shunt (Qs/Qt) in the PAH and CTEPH groups (all P > 0.05). The survival time in patients with CTEPH with a negative response to AVT was somewhat shorter than that in AVT-responders although the difference was not statistically significant (χ2 =3.613, P = 0.057). The survival time of patients with CTEPH who received calcium channel blockers (CCBs) was longer than that in the group with only basic treatment and not shorter than that of patients who receiving targeted drugs or underwent pulmonary endarterectomy (PEA) although there was no significant difference between the four different treatment regimens (χ2 =3.069, P = 0.381). CONCLUSIONS The rates of positive response to AVT were similar in the CTEPH and PAH groups, and iloprost inhalation induced similar changes in hemodynamics and oxygenation dynamics indices. A positive response to AVT in the CTEPH group was significantly correlated with milder disease and better survival. Patients with CTEPH who cannot undergo PEA or receive targeted therapy but have a positive response to AVT might benefit from CCB treatment.
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Affiliation(s)
- Qi-Xia Xu
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020; Department of Respiratory Medicine, Capital Medical University, Beijing 100069; Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, China
| | - Yuan-Hua Yang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Jie Geng
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, China
| | - Zhen-Guo Zhai
- Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - Juan-Ni Gong
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Ji-Feng Li
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Xiao Tang
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine, Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Chen Wang
- Department of Respiratory Medicine, Capital Medical University, Beijing 100069; Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029; National Clinical Research Center for Respiratory Diseases, Beijing 100730, China
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Neto-Neves EM, Brown MB, Zaretskaia MV, Rezania S, Goodwill AG, McCarthy BP, Persohn SA, Territo PR, Kline JA. Chronic Embolic Pulmonary Hypertension Caused by Pulmonary Embolism and Vascular Endothelial Growth Factor Inhibition. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 187:700-712. [PMID: 28183533 DOI: 10.1016/j.ajpath.2016.12.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/10/2016] [Accepted: 12/08/2016] [Indexed: 02/03/2023]
Abstract
Our understanding of the pathophysiological basis of chronic thromboembolic pulmonary hypertension (CTEPH) will be accelerated by an animal model that replicates the phenotype of human CTEPH. Sprague-Dawley rats were administered a combination of a single dose each of plastic microspheres and vascular endothelial growth factor receptor antagonist in polystyrene microspheres (PE) + tyrosine kinase inhibitor SU5416 (SU) group. Shams received volume-matched saline; PE and SU groups received only microspheres or SU5416, respectively. PE + SU rats exhibited sustained pulmonary hypertension (62 ± 13 and 53 ± 14 mmHg at 3 and 6 weeks, respectively) with reduction of the ventriculoarterial coupling in vivo coincident with a large decrement in peak rate of oxygen consumption during aerobic exercise, respectively. PE + SU produced right ventricular hypokinesis, dilation, and hypertrophy observed on echocardiography, and 40% reduction in right ventricular contractile function in isolated perfused hearts. High-resolution computed tomographic pulmonary angiography and Ki-67 immunohistochemistry revealed abundant lung neovascularization and cellular proliferation in PE that was distinctly absent in the PE + SU group. We present a novel rodent model to reproduce much of the known phenotype of CTEPH, including the pivotal pathophysiological role of impaired vascular endothelial growth factor-dependent vascular remodeling. This model may reveal a better pathophysiological understanding of how PE transitions to CTEPH in human treatments.
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Affiliation(s)
- Evandro M Neto-Neves
- Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Mary B Brown
- Department of Physical Therapy, Indiana University School of Health and Rehabilitation Sciences, Indianapolis, Indiana
| | - Maria V Zaretskaia
- Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Samin Rezania
- Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Adam G Goodwill
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Brian P McCarthy
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana
| | - Scott A Persohn
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana
| | - Paul R Territo
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jeffrey A Kline
- Department of Emergency Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana.
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Robbins IM, Pugh ME, Hemnes AR. Update on chronic thromboembolic pulmonary hypertension. Trends Cardiovasc Med 2017; 27:29-37. [DOI: 10.1016/j.tcm.2016.05.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/20/2016] [Accepted: 05/20/2016] [Indexed: 10/21/2022]
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