1
|
Talle MA, Robbertse PPS, Doubell AF, Lahri S, Herbst PG. Characterizing myocardial edema and fibrosis in hypertensive crisis with cardiovascular magnetic resonance imaging. Sci Rep 2024; 14:23509. [PMID: 39379531 DOI: 10.1038/s41598-024-74099-9] [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] [Received: 03/31/2024] [Accepted: 09/23/2024] [Indexed: 10/10/2024] Open
Abstract
A hypertensive crisis is associated with an increased risk of cardiovascular events. Although altered cardiac structure, function, and myocardial architecture on cardiovascular magnetic resonance (CMR) have been associated with increased adverse events in hypertensive patients, the studies did not include patients with hypertensive crisis. Our study aimed to determine myocardial tissue characteristics in patients with hypertensive crisis using CMR imaging. Participants underwent comprehensive CMR imaging at 1.5T. The imaging protocol included cine-, T2-weighted-, contrasted- and multi-parametric mapping images. Blood and imaging biomarkers were compared in hypertensive emergency and hypertensive urgency. Predictors of myocardial edema was assessed using linear regression. The predictive value of T1- and T2 mapping for identifying hypertensive emergency (from urgency) was assessed with receiver operator characteristics curves. Eighty-two patients (48.5 ± 13.4 years, 57% men) were included. Hypertensive emergency constituted 78%. Native T1 was higher in patients with LVH compared to those without (1056 ± 33 vs. 1013 ± 40, P < 0.001), and tended to be higher in hypertensive emergency than urgency (1051 ± 37 vs. 1033 ± 40, P = 0.077). T2-w signal intensity (SI) ratio and T2 mapping values were higher in hypertensive emergency (1.5 ± 0.2 vs. 1.4 ± 0.1, P = 0.044 and 48 ± 2 vs. 47 ± 2, P = 0.004), and in patients with than without LVH (1.5 ± 0.2 vs. 1.4 ± 0.1, P = 0.045 and P = 0.030). A trend for higher extracellular volume was noted in hypertensive emergency compared to urgency (25 ± 4 vs. 22 ± 3, P = 0.050). Native T1 correlated with T2 mapping (rs = 0.429, P < 0.001), indexed LV mass (rs = 0.493, P < 0.001), cardiac troponin (rs = 0.316, P < 0.001) and NT-proBNP (rs = 0.537, P < 0.001), while T2 correlated with cardiac troponin (rs = 0.390, P < 0.001), and NT-proBNP (rs = 0.348, P < 0.001). Non-ischemic LGE pattern occurred in 59% and was 21% more prevalent in the hypertensive emergency group (P = 0.005). Our findings demonstrate that hypertensive crisis is associated with distinct myocardial tissue alterations, including increased myocardial edema and fibrosis, as detected on CMR. Patients with hypertensive emergency had a higher degree of myocardial oedema than hypertensive urgency. Further research is necessary to explore the prognostic value of these findings.
Collapse
Affiliation(s)
- Mohammed A Talle
- Division of Cardiology, Department of Medicine, Faculty of Medicine, and Health Sciences, Stellenbosch University and Tygerberg Hospital, 1 Francie van Zijl Ave, Bellville, Cape Town, 7505, South Africa.
- Department of Medicine, Faculty of Clinical Sciences, College of Medical Sciences, University of Maiduguri and University of Maiduguri Teaching Hospital, Maiduguri, 600004, Nigeria.
| | - Pieter-Paul S Robbertse
- Division of Cardiology, Department of Medicine, Faculty of Medicine, and Health Sciences, Stellenbosch University and Tygerberg Hospital, 1 Francie van Zijl Ave, Bellville, Cape Town, 7505, South Africa
| | - Anton F Doubell
- Division of Cardiology, Department of Medicine, Faculty of Medicine, and Health Sciences, Stellenbosch University and Tygerberg Hospital, 1 Francie van Zijl Ave, Bellville, Cape Town, 7505, South Africa
| | - Sa'ad Lahri
- Division of Emergency Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town, 7505, South Africa
| | - Philip G Herbst
- Division of Cardiology, Department of Medicine, Faculty of Medicine, and Health Sciences, Stellenbosch University and Tygerberg Hospital, 1 Francie van Zijl Ave, Bellville, Cape Town, 7505, South Africa
| |
Collapse
|
2
|
Serai SD, Robson MD, Tirkes T, Trout AT. T 1 Mapping of the Abdomen, From the AJR "How We Do It" Special Series. AJR Am J Roentgenol 2024. [PMID: 39194308 DOI: 10.2214/ajr.24.31643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
By exploiting different tissues' characteristic T1 relaxation times, T1-weighted images help distinguish normal and abnormal tissues, aiding assessment of diffuse and local pathologies. However, such images do not provide quantitative T1 values. Advances in abdominal MRI techniques have enabled measurement of abdominal organs' T1 relaxation times, which can be used to create color-coded quantitative maps. T1 mapping is sensitive to tissue microenvironments including inflammation and fibrosis and has received substantial interest for noninvasive imaging of abdominal organ pathology. In particular, quantitative mapping provides a powerful tool for evaluation of diffuse disease by making apparent changes in T1 occurring across organs that may otherwise be difficult to identify. Quantitative measurement also facilitates sensitive monitoring of longitudinal T1 changes. Increased T1 in liver helps to predict parenchymal fibro-inflammation, in pancreas is associated with reduced exocrine function from chronic or autoimmune pancreatitis, and in kidney is associated with impaired renal function and aids diagnosis of chronic kidney disease. In this review, we describe the acquisition, postprocessing, and analysis of T1 maps in the abdomen and explore applications in liver, spleen, pancreas, and kidney. We highlight practical aspects of implementation and standardization, technical pitfalls and confounding factors, and areas of likely greatest clinical impact.
Collapse
Affiliation(s)
- Suraj D Serai
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Temel Tirkes
- Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Andrew T Trout
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| |
Collapse
|
3
|
Mori N, Nakagawa S, Iwata K, Sakamoto N, Okizaki A. [Effect of Pulse Wave Synchronization on T1 Value in Cardiac T1 Mapping: Is Pulse Wave Synchronization a Substitute for Electrocardiogram Gating?]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2024:2024-1458. [PMID: 39183028 DOI: 10.6009/jjrt.2024-1458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
PURPOSE We investigated whether peripheral pulse synchronization (PPUS) can be an alternate method for electrocardiographic synchronization (ECGS) in measuring myocardial T1 values in cardiac magnetic resonance imaging (CMRI). METHODS T1 map imaging was performed on 49 patients undergoing CMRI using the 5s (3s) 3s modified Look-Locker inversion recovery (MOLLI) method for both ECGS and PPUS. The short-axis images of basal, mid, and apical segments were obtained. The T1 map images were analyzed using an image processing system, and T1 values were obtained for each cardiac segment. To assess the degree of agreement between T1 values obtained from ECGS and PPUS, the Bland-Altman analysis and the estimating intraclass correlation coefficient (ICC) were performed for the average T1 value of the entire myocardium and T1 values of each cardiac segment. Also, to evaluate whether PPUS imaging is possible in the diastole phase, we measured the length of systole in the electrocardiogram and the length of transmission (R-R') from R in the electrocardiogram to R (R') in the pulse waveform. RESULTS From the comparison of T1 values, a good agreement of ICC was confirmed between the ECGS and PPUS (whole myocardium: 0.97, apical: 0.93, mid: 0.98, and basal: 0.97). The results of the Bland-Altman analysis also indicated good agreement. Moreover, it was shown that the heart was imaged in the diastole phase even with the default scan parameters of PPUS. CONCLUSION Our results indicated that PPUS can be an alternate method for ECGS.
Collapse
Affiliation(s)
- Naoto Mori
- Section of Radiological Technology, Department of Medical Technology, Asahikawa Medical University Hospital
| | - Sadahiro Nakagawa
- Section of Radiological Technology, Department of Medical Technology, Asahikawa Medical University Hospital
| | - Kunihiro Iwata
- Section of Radiological Technology, Department of Medical Technology, Asahikawa Medical University Hospital
| | - Naka Sakamoto
- Department of Clinical Laboratory and Transfusion, Asahikawa Medical University Hospital
| | | |
Collapse
|
4
|
Roehl M, Conway M, Ghonim S, Ferreira PF, Nielles-Vallespin S, Babu-Narayan SV, Pennell DJ, Gatehouse PD, Scott AD. STEAM-SASHA: a novel approach for blood- and fat-suppressed native T1 measurement in the right ventricular myocardium. MAGMA (NEW YORK, N.Y.) 2024; 37:295-305. [PMID: 38216813 PMCID: PMC10995026 DOI: 10.1007/s10334-023-01141-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 01/14/2024]
Abstract
OBJECTIVE The excellent blood and fat suppression of stimulated echo acquisition mode (STEAM) can be combined with saturation recovery single-shot acquisition (SASHA) in a novel STEAM-SASHA sequence for right ventricular (RV) native T1 mapping. MATERIALS AND METHODS STEAM-SASHA splits magnetization preparation over two cardiac cycles, nulling blood signal and allowing fat signal to decay. Breath-hold T1 mapping was performed in a T1 phantom and twice in 10 volunteers using STEAM-SASHA and a modified Look-Locker sequence at peak systole at 3T. T1 was measured in 3 RV regions, the septum and left ventricle (LV). RESULTS In phantoms, MOLLI under-estimated while STEAM-SASHA over-estimated T1, on average by 3.0% and 7.0% respectively, although at typical 3T myocardial T1 (T1 > 1200 ms) STEAM-SASHA was more accurate. In volunteers, T1 was higher using STEAM-SASHA than MOLLI in the LV and septum (p = 0.03, p = 0.006, respectively), but lower in RV regions (p > 0.05). Inter-study, inter-observer and intra-observer coefficients of variation in all regions were < 15%. Blood suppression was excellent with STEAM-SASHA and noise floor effects were minimal. DISCUSSION STEAM-SASHA provides accurate and reproducible T1 in the RV with excellent blood and fat suppression. STEAM-SASHA has potential to provide new insights into pathological changes in the RV in future studies.
Collapse
Affiliation(s)
- Malte Roehl
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, Sydney Street, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Miriam Conway
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, Sydney Street, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Sarah Ghonim
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, Sydney Street, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Pedro F Ferreira
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, Sydney Street, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Sonia Nielles-Vallespin
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, Sydney Street, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Sonya V Babu-Narayan
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, Sydney Street, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Dudley J Pennell
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, Sydney Street, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Peter D Gatehouse
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, Sydney Street, London, UK
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Andrew D Scott
- Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, Sydney Street, London, UK.
- National Heart and Lung Institute, Imperial College London, London, UK.
| |
Collapse
|
5
|
Andresen K, Klæboe LG, Lie ØH, Broch K, Kvaslerud AB, Bosse G, Hopp E, de Lange C, Haugaa KH, Edvardsen T. No adverse association between exercise exposure and diffuse myocardial fibrosis in male endurance athletes. Sci Rep 2024; 14:6581. [PMID: 38503845 PMCID: PMC10951320 DOI: 10.1038/s41598-024-57233-5] [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: 12/21/2023] [Accepted: 03/15/2024] [Indexed: 03/21/2024] Open
Abstract
The potential association between endurance exercise and myocardial fibrosis is controversial. Data on exercise exposure and diffuse myocardial fibrosis in endurance athletes are scarce and conflicting. We aimed to investigate the association between exercise exposure and markers of diffuse myocardial fibrosis by cardiovascular magnetic resonance imaging (CMR) in endurance athletes. We examined 27 healthy adult male competitive endurance athletes aged 41 ± 9 years and 16 healthy controls in a cross sectional study using 3 Tesla CMR including late gadolinium enhancement and T1 mapping. Athletes reported detailed exercise history from 12 years of age. Left ventricular total mass, cellular mass and extracellular mass were higher in athletes than controls (86 vs. 58 g/m2, 67 vs. 44 g/m2 and 19 vs. 13 g/m2, all p < 0.01). Extracellular volume (ECV) was lower (21.5% vs. 23.8%, p = 0.03) and native T1 time was shorter (1214 ms vs. 1268 ms, p < 0.01) in the athletes. Increasing exercise dose was independently associated with shorter native T1 time (regression coefficient - 24.1, p < 0.05), but expressed no association with ECV. Our results indicate that diffuse myocardial fibrosis has a low prevalence in healthy male endurance athletes and do not indicate an adverse dose-response relationship between exercise and diffuse myocardial fibrosis in healthy athletes.
Collapse
Affiliation(s)
- Kristoffer Andresen
- ProCardio Center for Innovation, Department of Cardiology, Oslo University Hospital, Rikshospitalet, Nydalen, P. O. Box 4950, N-0424, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Lars Gunnar Klæboe
- ProCardio Center for Innovation, Department of Cardiology, Oslo University Hospital, Rikshospitalet, Nydalen, P. O. Box 4950, N-0424, Oslo, Norway
- Department of Cardiology, Akershus University Hospital, Lørenskog, Norway
| | - Øyvind Haugen Lie
- ProCardio Center for Innovation, Department of Cardiology, Oslo University Hospital, Rikshospitalet, Nydalen, P. O. Box 4950, N-0424, Oslo, Norway
| | - Kaspar Broch
- ProCardio Center for Innovation, Department of Cardiology, Oslo University Hospital, Rikshospitalet, Nydalen, P. O. Box 4950, N-0424, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Anette Borger Kvaslerud
- ProCardio Center for Innovation, Department of Cardiology, Oslo University Hospital, Rikshospitalet, Nydalen, P. O. Box 4950, N-0424, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Gerhard Bosse
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Einar Hopp
- Division of Radiology and Nuclear Medicine, Oslo University Hospital, Rikshospitalet, Oslo, Norway
| | - Charlotte de Lange
- Institution of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Pediatric Radiology, Queen Silvia Children's Hospital, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Kristina Hermann Haugaa
- ProCardio Center for Innovation, Department of Cardiology, Oslo University Hospital, Rikshospitalet, Nydalen, P. O. Box 4950, N-0424, Oslo, Norway
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Heart and Lung Diseases Unit, Department of Medicine, Karolinska University Hospital, Huddinge, Sweden
| | - Thor Edvardsen
- ProCardio Center for Innovation, Department of Cardiology, Oslo University Hospital, Rikshospitalet, Nydalen, P. O. Box 4950, N-0424, Oslo, Norway.
- Faculty of Medicine, University of Oslo, Oslo, Norway.
| |
Collapse
|
6
|
Vengrzhinovskaya OI, Bondarenko IZ, Shatskaya OA, Tarbaeva NV, Korneluk AY, Kalashnikov VY, Shestakova MV, Mokrysheva NG. [Clinical importance of evaluation of circulating miRNA expression and epicardial adipose tissue thickness as predictors of cardiovascular pathology in young patients with type 1 diabetes mellitus]. TERAPEVT ARKH 2023; 95:839-844. [PMID: 38159015 DOI: 10.26442/00403660.2023.10.202426] [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] [Received: 05/15/2023] [Indexed: 01/03/2024]
Abstract
Cardiovascular disease (CVD) in type 1 diabetes mellitus (T1DM) is preceded by asymptomatic changes in the geometry of the heart. The only symptoms of the beginning of cardiac remodeling and concomitant predictors of an unfavorable cardiovascular prognosis are: thickening of epicardial fat (EAT), secreting a number of adipokines, and cardiospecific miRNAs. To improve the effectiveness of prevention of CVD in young patients with DM1, a search was made for structural-functional and epigenetic markers. AIM To assess the state of the cardiovascular system according to MRI-heart with T1 mapping in T1DM without CVD. To reveal the relationship of epigenetic markers (circulating miR-126-5p, miR-21-5p) and adipokines with cardiovascular system in T1DM. Suggested personalized approach to patients with T1DM with initial manifestations of joint remodeling and/or exclusion of cardiospecific microRNA. MATERIALS AND METHODS The study included 40 patients: 30 with T1DM (age 26.2±7.4 years), 10 without T1DM (26.4±8.2). The patients underwent a general clinical examination, bioimpedancemetry, electrocardiography, MRI of the heart with T1 mapping, determination of adiponectin, resistin, visfatin, NT-proBNP, miR-126-5p, miR-21-5p. RESULTS Patients with T1DM had lower levels of cardioprotective miR-126-5p (p=0.046). According to MRI of the heart in T1DM, signs of vascular remodeling were revealed - thickening of the interventricular septum (p=0.001), posterior wall (p=0.012) and relative size of the walls (p=0.048) of the left ventricle, an increase in EAT density (p=0.001). Diffuse vascular fibrosis was found in 16% of patients from the T1DM group. Also, in T1DM, the expression of visfatin is increased (p=0.036) and adiponectin is reduced (p=0.043). CONCLUSION Structural and functional changes in the cardiovascular system (including thickening of the EAT), shifts in miR-126-5p expression and adipokines profile are observed already at a young age in patients with T1DM. In T1DM, diffuse vascular fibrosis is detected in 16% of patients. The data obtained were used to identify the group increased risk of developing CVD in T1DM and served as the basis for determining the timing of the start of preventive therapy.
Collapse
Affiliation(s)
| | | | | | - N V Tarbaeva
- National Medical Research Center for Endocrinology
| | - A Y Korneluk
- National Medical Research Center for Endocrinology
| | | | | | | |
Collapse
|
7
|
Talle MA, Doubell AF, Robbertse PPS, Lahri S, Herbst PG. Myocardial Tissue Characterization in Patients with Hypertensive Crisis, Positive Troponin, and Unobstructed Coronary Arteries: A Cardiovascular Magnetic Resonance-Based Study. Diagnostics (Basel) 2023; 13:2943. [PMID: 37761309 PMCID: PMC10527803 DOI: 10.3390/diagnostics13182943] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/04/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Hypertensive crisis can present with cardiac troponin elevation and unobstructed coronary arteries. We used cardiac magnetic resonance (CMR) imaging to characterize the myocardial tissue in patients with hypertensive crisis, elevated cardiac troponin, and unobstructed coronary arteries. Patients with hypertensive crisis and elevated cardiac troponin with coronary artery stenosis <50% were enrolled. Patients with troponin-negative hypertensive crisis served as controls. All participants underwent CMR imaging at 1.5 Tesla. Imaging biomarkers and tissue characteristics were compared between the groups. There were 19 patients (63% male) with elevated troponin and 24 (33% male) troponin-negative controls. The troponin-positive group was older (57 ± 11 years vs. 47 ± 14 years, p = 0.015). The groups had similar T2-weighted signal intensity ratios and native T1 times. T2 relaxation times were longer in the troponin-positive group, and the difference remained significant after excluding infarct-pattern late gadolinium enhancement (LGE) from the analysis. Extracellular volume (ECV) was higher in the troponin-positive group (25 ± 4 ms vs. 22 ± 3 ms, p = 0.008) and correlated strongly with T2 relaxation time (rs = 0.701, p = 0.022). Late gadolinium enhancement was 32% more prevalent in the troponin-positive group (82% vs. 50%, p = 0.050), with 29% having infarct-pattern LGE. T2 relaxation time was independently associated with troponin positivity (OR 2.1, p = 0.043), and both T2 relaxation time and ECV predicted troponin positivity (C-statistics: 0.71, p = 0.009; and 0.77, p = 0.006). Left ventricular end-diastolic and left atrial volumes were the strongest predictors of troponin positivity (C-statistics: 0.80, p = 0.001; and 0.82, p < 0.001). The increased T2 relaxation time and ECV and their significant correlation in the troponin-positive group suggest myocardial injury with oedema, while the non-ischaemic LGE could be due to myocardial fibrosis or acute necrosis. These CMR imaging biomarkers provide important clinical indices for risk stratification and prognostication in patients with hypertensive crisis.
Collapse
Affiliation(s)
- Mohammed A. Talle
- Division of Cardiology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town 7505, South Africa
- Department of Medicine, Faculty of Clinical Sciences, College of Medical Sciences, University of Maiduguri and University of Maiduguri Teaching Hospital, Maiduguri 600004, Nigeria
| | - Anton F. Doubell
- Division of Cardiology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town 7505, South Africa
| | - Pieter-Paul S. Robbertse
- Division of Cardiology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town 7505, South Africa
| | - Sa’ad Lahri
- Division of Emergency Medicine, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town 7505, South Africa
| | - Philip G. Herbst
- Division of Cardiology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town 7505, South Africa
| |
Collapse
|
8
|
Emrich T. Kommentar zu HERZ THORAX – Parametrische Kardio-MRT bewährt sich in Real-World-Szenario. ROFO-FORTSCHR RONTG 2023; 195:476-477. [PMID: 37224824 DOI: 10.1055/a-2038-2837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Affiliation(s)
- Tilman Emrich
- Klinik und Poliklinik für Diagnostische und Interventionelle Radiologie, Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Mainz, Germany
| |
Collapse
|
9
|
Grazzini G, Pradella S, Rossi A, Basile RP, Ruggieri M, Galli D, Palmisano A, Palumbo P, Esposito A, Miele V. Practical Guide to Interpreting Cardiac Magnetic Resonance in Patients with Cardiac Masses. J Cardiovasc Dev Dis 2023; 10:229. [PMID: 37367394 DOI: 10.3390/jcdd10060229] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 06/28/2023] Open
Abstract
It is common for a cardiac mass to be discovered accidentally during an echocardiographic examination. Following the relief of a cardiac mass, being able to evaluate and characterize it using non-invasive imaging methods is critical. Echocardiography, computed tomography (CT), cardiac magnetic resonance imaging (CMR), and positron emission tomography (PET) are the main imaging modalities used to evaluate cardiac masses. Although multimodal imaging often allows for a better assessment, CMR is the best technique for the non-invasive characterization of tissues, as the different MR sequences help in the diagnosis of cardiac masses. This article provides detailed descriptions of each CMR sequence employed in the evaluation of cardiac masses, underlining the potential information it can provide. The description in the individual sequences provides useful guidance to the radiologist in performing the examination.
Collapse
Affiliation(s)
- Giulia Grazzini
- Department of Emergency Radiology, University Hospital Careggi, Largo Brambilla 3, 50134 Florence, Italy
| | - Silvia Pradella
- Department of Emergency Radiology, University Hospital Careggi, Largo Brambilla 3, 50134 Florence, Italy
| | - Alice Rossi
- Department of Emergency Radiology, University Hospital Careggi, Largo Brambilla 3, 50134 Florence, Italy
| | - Rocco Pio Basile
- Department of Emergency Radiology, University Hospital Careggi, Largo Brambilla 3, 50134 Florence, Italy
| | - Matteo Ruggieri
- Department of Emergency Radiology, University Hospital Careggi, Largo Brambilla 3, 50134 Florence, Italy
| | - Daniele Galli
- Department of Emergency Radiology, University Hospital Careggi, Largo Brambilla 3, 50134 Florence, Italy
| | - Anna Palmisano
- Experimental Imaging Center, San Raffaele Scientific Institute, Via Olgettina 60, 20100 Milan, Italy
- School of Medicine, Vita-Salute San Raffaele University, Via Olgettina 58, 20132 Milan, Italy
| | - Pierpaolo Palumbo
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio 1, 67100 L'Aquila, Italy
| | - Antonio Esposito
- Experimental Imaging Center, San Raffaele Scientific Institute, Via Olgettina 60, 20100 Milan, Italy
- School of Medicine, Vita-Salute San Raffaele University, Via Olgettina 58, 20132 Milan, Italy
| | - Vittorio Miele
- Department of Emergency Radiology, University Hospital Careggi, Largo Brambilla 3, 50134 Florence, Italy
| |
Collapse
|
10
|
Arega TW, Bricq S, Legrand F, Jacquier A, Lalande A, Meriaudeau F. Automatic uncertainty-based quality controlled T1 mapping and ECV analysis from native and post-contrast cardiac T1 mapping images using Bayesian vision transformer. Med Image Anal 2023; 86:102773. [PMID: 36827870 DOI: 10.1016/j.media.2023.102773] [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: 07/08/2022] [Revised: 01/30/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023]
Abstract
Deep learning-based methods for cardiac MR segmentation have achieved state-of-the-art results. However, these methods can generate incorrect segmentation results which can lead to wrong clinical decisions in the downstream tasks. Automatic and accurate analysis of downstream tasks, such as myocardial tissue characterization, is highly dependent on the quality of the segmentation results. Therefore, it is of paramount importance to use quality control methods to detect the failed segmentations before further analysis. In this work, we propose a fully automatic uncertainty-based quality control framework for T1 mapping and extracellular volume (ECV) analysis. The framework consists of three parts. The first one focuses on segmentation of cardiac structures from a native and post-contrast T1 mapping dataset (n=295) using a Bayesian Swin transformer-based U-Net. In the second part, we propose a novel uncertainty-based quality control (QC) to detect inaccurate segmentation results. The QC method utilizes image-level uncertainty features as input to a random forest-based classifier/regressor to determine the quality of the segmentation outputs. The experimental results from four different types of segmentation results show that the proposed QC method achieves a mean area under the ROC curve (AUC) of 0.927 on binary classification and a mean absolute error (MAE) of 0.021 on Dice score regression, significantly outperforming other state-of-the-art uncertainty based QC methods. The performance gap is notably higher in predicting the segmentation quality from poor-performing models which shows the robustness of our method in detecting failed segmentations. After the inaccurate segmentation results are detected and rejected by the QC method, in the third part, T1 mapping and ECV values are computed automatically to characterize the myocardial tissues of healthy and cardiac pathological cases. The native myocardial T1 and ECV values computed from automatic and manual segmentations show an excellent agreement yielding Pearson coefficients of 0.990 and 0.975 (on the combined validation and test sets), respectively. From the results, we observe that the automatically computed myocardial T1 and ECV values have the ability to characterize myocardial tissues of healthy and cardiac diseases like myocardial infarction, amyloidosis, Tako-Tsubo syndrome, dilated cardiomyopathy, and hypertrophic cardiomyopathy.
Collapse
Affiliation(s)
| | - Stéphanie Bricq
- ImViA Laboratory, Université Bourgogne Franche-Comté, Dijon, France
| | - François Legrand
- ImViA Laboratory, Université Bourgogne Franche-Comté, Dijon, France
| | | | - Alain Lalande
- ImViA Laboratory, Université Bourgogne Franche-Comté, Dijon, France; Medical Imaging department, University Hospital of Dijon, Dijon, France
| | | |
Collapse
|
11
|
Robbertse PPS, Doubell AF, Lombard CJ, Talle MA, Herbst PG. Evolution of myocardial oedema and fibrosis in HIV infected persons after the initiation of antiretroviral therapy: a prospective cardiovascular magnetic resonance study. J Cardiovasc Magn Reson 2022; 24:72. [PMID: 36529806 PMCID: PMC9760320 DOI: 10.1186/s12968-022-00901-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 11/10/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Human immunodeficiency virus (HIV) infected persons on antiretroviral therapy (ART) have been shown to have functionally and structurally altered ventricles and may be related to cardiovascular inflammation. Mounting evidence suggests that the myocardium of HIV infected individuals may be abnormal before ART is initiated and may represent subclinical HIV-associated cardiomyopathy (HIVAC). The influence of ART on subclinical HIVAC is not known. METHODS Newly diagnosed, ART naïve persons with HIV infection were enrolled along with HIV uninfected, age- and sex-matched controls. All participants underwent comprehensive cardiovascular assessment, including contrasted cardiovascular magnetic resonance (CMR) with multiparametric mapping on a 1.5T CMR system. The HIV group was started on ART (tenofovir/lamivudine/dolutegravir) and prospectively evaluated 9 months later. Cardiac tissue characterisation was compared in, and between groups using the appropriate statistical tests for the cross sectional data and the paired, prospective data respectively. RESULTS Seventy-three ART naïve HIV infected individuals (32 ± 7 years, 45% female) and 22 healthy non-HIV subjects (33 ± 7 years, 50% female) were enrolled. Compared with non-HIV healthy subjects, the global native T1 (1008 ± 31 ms vs 1032 ± 44 ms, p = 0.02), global T2 (46 ± 2 vs 48 ± 3 ms, p = 0.006), and the prevalence of pericardial effusion (18% vs 67%, p < 0.001) were significantly higher in the HIV infected group at diagnosis. Global native T1 (1032 ± 44 to 1014 ± 34 ms, p < 0.001) and extracellular volume (ECV) (26 ± 4% to 25 ± 3%, p = 0.001) decreased significantly after 9 months on ART and were significantly associated with a decrease in the HIV viral load, decreased high sensitivity C-reactive protein, and improvement in the CD4 count (p < 0.001). Replacement fibrosis was significantly higher in the HIV infected group than controls (49% vs 10%, p = 0.02). The prevalence of late gadolinium enhancement did not change significantly over the 9-month study period (49% vs 55%, p = 0.4). CONCLUSION Subclinical HIVAC may already be present at the time of HIV diagnosis, as suggested by the combination of subclinical myocardial oedema and fibrosis found to be present before administration of ART. Markers of myocardial oedema on tissue characterization improved on ART in the short term, however, it is unclear if the underlying pathological mechanism is halted, or merely slowed by ART. Mid- to long term prospective studies are needed to evaluate subtle myocardial changes over time and to assess the significance of subclinical myocardial fibrosis.
Collapse
Affiliation(s)
- Pieter-Paul S Robbertse
- Division of Cardiology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town, South Africa.
- University of Pittsburgh HIV-Comorbidities Research Training Programme in South Africa, Cape Town, South Africa.
| | - Anton F Doubell
- Division of Cardiology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town, South Africa
| | - Carl J Lombard
- Biostatistics Unit, South African Medical Research Council, Cape Town, South Africa
- Division of Epidemiology and Biostatistics, Department of Global Health, Stellenbosch University, Cape Town, South Africa
| | - Mohammed A Talle
- Division of Cardiology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town, South Africa
- Department of Medicine, Faculty of Clinical Sciences, College of Medical Sciences, University of Maiduguri, Maiduguri, Nigeria
| | - Philip G Herbst
- Division of Cardiology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Hospital, Cape Town, South Africa
| |
Collapse
|
12
|
Cavus E, Schneider JN, Bei der Kellen R, di Carluccio E, Ziegler A, Tahir E, Bohnen S, Avanesov M, Radunski UK, Chevalier C, Jahnke C, Ojeda F, Kirchhof P, Blankenberg S, Adam G, Lund GK, Muellerleile K. Impact of Sex and Cardiovascular Risk Factors on Myocardial T1, Extracellular Volume Fraction, and T2 at 3 Tesla: Results From the Population-Based, Hamburg City Health Study. Circ Cardiovasc Imaging 2022; 15:e014158. [PMID: 36126126 DOI: 10.1161/circimaging.122.014158] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Reliable reference intervals are crucial for clinical application of myocardial T1 and T2 mapping cardiovascular magnetic resonance imaging. This study evaluated the impact of sex and cardiovascular risk factors on myocardial T1, extracellular volume fraction (ECV), and T2 at 3T in the population-based HCHS (Hamburg City Health Study). METHODS The final study sample consisted of 1576 consecutive HCHS participants between 46 and 78 years without prevalent heart disease, including 1020 (67.3%) participants with hypertension and 110 (7.5%) with diabetes. T1 and T2 mapping were performed on a 3T scanner using 5b(3b)3b modified Look-Locker inversion recovery and T2 prepared, fast-low-angle shot sequence, respectively. Stepwise regression analyses were performed to identify variables with an independent impact on T1, ECV, and T2. Reference intervals were defined as the interval between the 2.5% and 97.5% quantiles. RESULTS Sex was the major independent influencing factor of myocardial native T1, ECV, and T2. Female patients had significantly higher upper limits of reference intervals for native T1 (1112-1261 versus 1079-1241 ms), ECV (23%-33% versus 22%-32%), and T2 (36-46 versus 35-45 ms) compared with male patients (all P<0.001). Cardiovascular risk factors, such as diabetes and hypertension, did not systematically affect native T1. There was an independent association of T2 by hypertension and, to a lesser degree, by left ventricular mass, heart rate (all P<0.001), and body mass index (P=0.001). CONCLUSIONS Sex needs to be considered as the major, independent influencing factor for clinical application of myocardial T1, ECV, and T2 measurements. Consequently, sex-specific reference intervals should be used in clinical routine. Our findings suggest that there is no need for specific reference intervals for myocardial T1 and ECV measurements in individuals with cardiovascular risk factors. However, hypertension should be considered as an additional factor for clinical application of T2 measurements. REGISTRATION URL: https://www. CLINICALTRIALS gov; Unique identifier: NCT03934957.
Collapse
Affiliation(s)
- Ersin Cavus
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.).,Deutsches Zentrum für Herz-Kreislauf-Forschung e.V. (German Center for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Germany (E.C., P.K., S. Blankenberg, K.M.)
| | - Jan N Schneider
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.)
| | - Ramona Bei der Kellen
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.)
| | - Eleonora di Carluccio
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.).,Cardio-Care, Medizincampus Davos, Switzerland (E.d.C., A.Z.)
| | - Andreas Ziegler
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.).,Cardio-Care, Medizincampus Davos, Switzerland (E.d.C., A.Z.).,School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Pietermaritzburg, South Africa (A.Z.)
| | - Enver Tahir
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg Eppendorf, Germany (E.T., M.A., G.A., G.K.L.)
| | - Sebastian Bohnen
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.)
| | - Maxim Avanesov
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg Eppendorf, Germany (E.T., M.A., G.A., G.K.L.)
| | - Ulf K Radunski
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.)
| | - Celeste Chevalier
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.)
| | - Charlotte Jahnke
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.)
| | - Francisco Ojeda
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.)
| | - Paulus Kirchhof
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.).,Deutsches Zentrum für Herz-Kreislauf-Forschung e.V. (German Center for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Germany (E.C., P.K., S. Blankenberg, K.M.)
| | - Stefan Blankenberg
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.).,Deutsches Zentrum für Herz-Kreislauf-Forschung e.V. (German Center for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Germany (E.C., P.K., S. Blankenberg, K.M.)
| | - Gerhard Adam
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg Eppendorf, Germany (E.T., M.A., G.A., G.K.L.)
| | - Gunnar K Lund
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg Eppendorf, Germany (E.T., M.A., G.A., G.K.L.)
| | - Kai Muellerleile
- Department of Cardiology, University Heart and Vascular Center Hamburg Eppendorf, Germany (E.C., J.N.S., R.B.d.K., E.d.C., A.Z., S. Bohnen, U.K.R., C.C., C.J., F.O., P.K., S. Blankenberg, K.M.).,Deutsches Zentrum für Herz-Kreislauf-Forschung e.V. (German Center for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Germany (E.C., P.K., S. Blankenberg, K.M.)
| |
Collapse
|
13
|
Abstract
OBJECTIVES In coronavirus disease 2019 (COVID-19), cardiovascular risk factors and myocardial injury relate to increased mortality. We evaluated the extent of cardiac sequelae 6 months after hospital discharge in patients surviving ICU hospitalization for COVID-19. METHODS All survivors of Maastricht-ICU were invited for comprehensive cardiovascular evaluation 6 months after discharge from ICU. Cardiac screening included an electrocardiogram, cardiac biomarkers, echocardiography, cardiac magnetic resonance (CMR) and, wherever indicated, cardiac computed tomography or coronary angiogram. RESULTS Out of 52 survivors, 81% ( n = 42) participated to the cardiovascular follow-up [median follow-up of 6 months, interquartile range (IQR) 6.1-6.7]. Eight patients (19%) had newly diagnosed coronary artery disease (CAD), of which two required a percutaneous intervention. Echocardiographic global longitudinal strain (GLS) was abnormal in 24% and CMR-derived GLS was abnormal in 12%, despite normal left ventricular ejection fraction in all. None of the patients showed elevated T 1 relaxation times and five patients (14%) had an elevated T 2 relaxation time. Late gadolinium enhancement (LGE) reflecting regional myocardial fibrosis was increased in eight patients (21%), of which three had myocarditis and three had pericarditis. CONCLUSION Cardiovascular follow-up at 6 months after ICU-admission for severe COVID-19 revealed that one out of five invasively mechanically ventilated survivors had CAD, a quarter had subclinical left ventricular dysfunction defined as reduced echocardiographic GLS, and 42% of the patients had CMR abnormalities (reduced LVEF, reduced GLS, LGE presence, and elevated T 2 ). On the basis of these findings, long-term cardiovascular follow-up is strongly recommended in all post-IC COVID-19 patients. CLINICAL TRIAL REGISTRATION Trial Register number [NL8613]) https://www.trialregister.nl/trial/8613Video abstract:http://links.lww.com/HJH/B899 .
Collapse
|
14
|
Karvonen V, Harjama L, Heliö K, Kettunen K, Elomaa O, Koskenvuo JW, Kere J, Weckström S, Holmström M, Saarela J, Ranki A, Heliö T, Hannula-Jouppi K. A novel desmoplakin mutation causes dilated cardiomyopathy with palmoplantar keratoderma as an early clinical sign. J Eur Acad Dermatol Venereol 2022; 36:1349-1358. [PMID: 35445468 PMCID: PMC9545885 DOI: 10.1111/jdv.18164] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/16/2022] [Accepted: 03/24/2022] [Indexed: 11/28/2022]
Abstract
Background PPKs represent a heterogeneous group of disorders with hyperkeratosis of palmar and/or plantar skin. PPK, hair shaft abnormalities, cardiomyopathy and arrhythmias can be caused by mutations in desmosomal genes, e.g. desmoplakin (DSP). PPK should trigger genetic testing to reveal mutations with possible related cardiac disease. Objectives To report a large multigenerational family with a novel DSP mutation associated with early‐onset PPK and adult‐onset cardiomyopathy and arrhythmias. Methods A custom‐designed in‐house panel of 35 PPK related genes was used to screen mutations in the index patient with focal PPK. The identified DSP mutation was verified by Sanger sequencing. DNA samples from 20 members of the large multigenerational family were sequenced for the DSP mutation. Medical records were reviewed. Clinical dermatological evaluation was performed, including light microscopy of hair samples. Cardiac evaluation included clinical examination, echocardiography, cardiac magnetic resonance imaging (CMR), electrocardiogram (ECG), Holter monitoring and laboratory tests. Results We identified a novel autosomal dominant truncating DSP c.2493delA p.(Glu831Aspfs*33) mutation associated with dilated cardiomyopathy (DCM) with arrhythmia susceptibility and focal PPK as an early cutaneous sign. The mutation was found in nine affected family members, but not in any unaffected members. Onset of dermatological findings preceded cardiac symptoms which were variable and occurred at adult age. Conclusions We report a novel truncating DSP mutation causing focal PPK with varying severity and left ventricular dilatation and ventricular extrasystoles. This finding emphasizes the importance of genetic diagnosis in patients with PPK for clinical counselling and management of cardiomyopathies and arrhythmias.
Collapse
Affiliation(s)
- V Karvonen
- Department of Dermatology and Allergology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - L Harjama
- Department of Dermatology and Allergology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - K Heliö
- Department of Cardiology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - K Kettunen
- HUS Diagnostic Center, Division of Genetics and Clinical Pharmacology, Laboratory of Genetics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Institute for Molecular Medicine Finland (FIMM), Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
| | - O Elomaa
- Folkhälsan Research Center, Helsinki, Finland and Research Programs Unit, Stem Cells and Metabolism Research Program, University of Helsinki, Finland
| | | | - J Kere
- Folkhälsan Research Center, Helsinki, Finland and Research Programs Unit, Stem Cells and Metabolism Research Program, University of Helsinki, Finland.,Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
| | - S Weckström
- Department of Cardiology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - M Holmström
- Radiology, HUS Diagnostic Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - J Saarela
- HUS Diagnostic Center, Division of Genetics and Clinical Pharmacology, Laboratory of Genetics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Institute for Molecular Medicine Finland (FIMM), Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland.,Centre for Molecular Medicine Norway (NCMM), University of Oslo, Oslo, Norway
| | - A Ranki
- Department of Dermatology and Allergology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - T Heliö
- Department of Cardiology, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - K Hannula-Jouppi
- Department of Dermatology and Allergology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Folkhälsan Research Center, Helsinki, Finland and Research Programs Unit, Stem Cells and Metabolism Research Program, University of Helsinki, Finland
| |
Collapse
|
15
|
Tribuna L, Oliveira PB, Iruela A, Marques J, Santos P, Teixeira T. Reference Values of Native T1 at 3T Cardiac Magnetic Resonance-Standardization Considerations between Different Vendors. Diagnostics (Basel) 2021; 11:diagnostics11122334. [PMID: 34943571 PMCID: PMC8699831 DOI: 10.3390/diagnostics11122334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/02/2021] [Accepted: 12/06/2021] [Indexed: 01/13/2023] Open
Abstract
This study aimed at establishing native T1 reference values for a Canon Vantage Galan 3T system and comparing them with previously published values from different vendors. A total of 20 healthy volunteers (55% Women; 33.9 ± 11.1 years) underwent left ventricular T1 mapping at 3T MR. A MOLLI 5(3)3 sequence was used, acquiring three short-axis slices. Native T1 values are shown as means (±standard deviation) and Student’s independent samples t-test was used to test gender differences in T1 values. Pearson’s correlation coefficient analysis was used to compare two processes of T1 analysis. The results show a global native T1 mean value of 1124.9 ± 55.2 ms (exponential analysis), that of women being statistically higher than men (1163 ± 30.5 vs. 1077.9 ± 39.5 ms, respectively; p < 0.001). There were no specific tendencies for T1 times in different ventricular slices. We found a strong correlation (0.977, p < 0.001) with T1 times derived from parametric maps (1136.4 ± 60.2 ms). Native T1 reference values for a Canon 3T scanner were provided, and they are on par with those already reported from other vendors for a similar sequence. We also found a correlation between native T1 and gender, with higher values for women.
Collapse
Affiliation(s)
- Liliana Tribuna
- Department of Radiology, Hospital da Luz Aveiro, 3800-009 Aveiro, Portugal; (P.B.O.); (J.M.); (P.S.); (T.T.)
- Correspondence: ; Tel.: +351-918-609-355
| | - Pedro Belo Oliveira
- Department of Radiology, Hospital da Luz Aveiro, 3800-009 Aveiro, Portugal; (P.B.O.); (J.M.); (P.S.); (T.T.)
- Department of Radiology, Centro Hospitalar Universitário de Coimbra, 3004-561 Coimbra, Portugal
| | - Alba Iruela
- Clinical Scientist in MR, Canon Medical Systems Spain and Portugal, 08940 Cornellà de Llobregat, Spain;
| | - João Marques
- Department of Radiology, Hospital da Luz Aveiro, 3800-009 Aveiro, Portugal; (P.B.O.); (J.M.); (P.S.); (T.T.)
| | - Paulo Santos
- Department of Radiology, Hospital da Luz Aveiro, 3800-009 Aveiro, Portugal; (P.B.O.); (J.M.); (P.S.); (T.T.)
| | - Tiago Teixeira
- Department of Radiology, Hospital da Luz Aveiro, 3800-009 Aveiro, Portugal; (P.B.O.); (J.M.); (P.S.); (T.T.)
- Department of Cardiology, Centro Hospitalar de Entre o Douro e Vouga, 4520-211 Santa Maria da Feira, Portugal
| |
Collapse
|
16
|
Dereli Bulut SS, Nurili F, Öztürkeri B, Sakci Z, Bukte Y, Aras Ö. Preliminary study: myocardial T1 relaxation time in patients with ischemic findings and normal findings on coronary angiography. ACTA ACUST UNITED AC 2021; 67:418-425. [PMID: 34468608 DOI: 10.1590/1806-9282.20200864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 12/28/2020] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The aim of this study is to evaluate the myocardium structure in patients with chest pain who were determined to have moderate and/or high risk for cardiac ischemic heart disease (IHD) but who had normal findings on conventional coronary angiography by using native cardiac magnetic resonance imaging (CMRI) T1 mapping and comparing with healthy volunteers. METHODS A total of 50 patients and 30 healthy volunteers who underwent CMRI were included in our prospective study. Patients whose clinical findings were compatible with stable angina pectoris, with moderate and/or high risk for IHD, but whose conventional coronary angiography was normal, were our patient group. Native T1 values were measured for 17 myocardial segments (segmented based on American Heart Association recommendations) by two radiologists independently. The data obtained were statistically compared with the sample t-test. RESULTS Myocardial native T1 values were found to be significantly prolonged in the patient group compared with the control group (p<0.05). Inter-observer reliability for native T1 value measurements of groups was high for both patient and control groups (α = 0.92 for the patient group and 0.96 for the control group). CONCLUSION Findings suggestive of ischemia were detected by T1 mapping in the myocardium of our patients. For this reason, it is recommended that this patient group should be included in early diagnosis and close follow-up assessments for IHD.
Collapse
Affiliation(s)
- Safiye Sanem Dereli Bulut
- Health Sciences University, Istanbul Umraniye Training and Research Hospital, Department of Radiology - Istanbul, Turkey
| | - Fuad Nurili
- Memorial Sloan Kettering Cancer Center, Department of Radiology - New York, USA
| | - Burak Öztürkeri
- Health Sciences University, Istanbul Umraniye Training and Research Hospital, Department of Cardiology - Istanbul, Turkey
| | - Zakir Sakci
- Health Sciences University, Istanbul Umraniye Training and Research Hospital, Department of Radiology - Istanbul, Turkey
| | - Yasar Bukte
- Health Sciences University, Istanbul Umraniye Training and Research Hospital, Department of Radiology - Istanbul, Turkey
| | - Ömer Aras
- Memorial Sloan Kettering Cancer Center, Department of Radiology - New York, USA
| |
Collapse
|
17
|
Mandoli GE, D'Ascenzi F, Vinco G, Benfari G, Ricci F, Focardi M, Cavigli L, Pastore MC, Sisti N, De Vivo O, Santoro C, Mondillo S, Cameli M. Novel Approaches in Cardiac Imaging for Non-invasive Assessment of Left Heart Myocardial Fibrosis. Front Cardiovasc Med 2021; 8:614235. [PMID: 33937354 PMCID: PMC8081830 DOI: 10.3389/fcvm.2021.614235] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 03/22/2021] [Indexed: 12/21/2022] Open
Abstract
In the past, the identification of myocardial fibrosis was only possible through invasive histologic assessment. Although endomyocardial biopsy remains the gold standard, recent advances in cardiac imaging techniques have enabled non-invasive tissue characterization of the myocardium, which has also provided valuable insights into specific disease processes. The diagnostic accuracy, incremental yield and prognostic value of speckle tracking echocardiography, late gadolinium enhancement and parametric mapping modules by cardiac magnetic resonance and cardiac computed tomography have been validated against tissue samples and tested in broad patient populations, overall providing relevant clinical information to the cardiologist. This review describes the patterns of left ventricular and left atrial fibrosis, and their characterization by advanced echocardiography, cardiac magnetic resonance and cardiac computed tomography, allowing for clinical applications in sudden cardiac death and management of atrial fibrillation.
Collapse
Affiliation(s)
- Giulia Elena Mandoli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Flavio D'Ascenzi
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Giulia Vinco
- Section of Cardiology, Department of Medicine, University of Verona, Verona, Italy
| | - Giovanni Benfari
- Section of Cardiology, Department of Medicine, University of Verona, Verona, Italy
| | - Fabrizio Ricci
- Department of Neuroscience, Imaging and Clinical Sciences, Institute of Advanced Biomedical Technologies, "G.d'Annunzio" University of Chieti-Pescara, Chieti, Italy.,Department of Clinical Sciences, Lund University, Malmö, Sweden.,Casa di Cura Villa Serena, Città Sant'Angelo, Italy
| | - Marta Focardi
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Luna Cavigli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Maria Concetta Pastore
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Nicolò Sisti
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Oreste De Vivo
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Ciro Santoro
- Department of Advanced Biomedical Science, Federico II University Hospital Naples, Naples, Italy
| | - Sergio Mondillo
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Matteo Cameli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| |
Collapse
|
18
|
Kräuter C, Reiter U, Reiter C, Nizhnikava V, Schmidt A, Stollberger R, Fuchsjäger M, Reiter G. Impact of the Choice of Native T 1 in Pixelwise Myocardial Blood Flow Quantification. J Magn Reson Imaging 2021; 53:755-765. [PMID: 33034120 PMCID: PMC7891429 DOI: 10.1002/jmri.27375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/07/2020] [Accepted: 09/08/2020] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Quantification of myocardial blood flow (MBF) from dynamic contrast-enhanced (DCE) MRI can be performed using a signal intensity model that incorporates T1 values of blood and myocardium. PURPOSE To assess the impact of T1 values on pixelwise MBF quantification, specifically to evaluate the influence of 1) study population-averaged vs. subject-specific, 2) diastolic vs. systolic, and 3) regional vs. global myocardial T1 values. STUDY TYPE Prospective. SUBJECTS Fifteen patients with chronic coronary heart disease. FIELD STRENGTH/SEQUENCE 3T; modified Look-Locker inversion recovery for T1 mapping and saturation recovery gradient echo for DCE imaging, both acquired in a mid-ventricular short-axis slice in systole and diastole. ASSESSMENT MBF was estimated using Fermi modeling and signal intensity nonlinearity correction with different T1 values: study population-averaged blood and myocardial, subject-specific systolic and diastolic, and segmental T1 values. Myocardial segments with perfusion deficits were identified visually from DCE series. STATISTICAL TESTS The relationships between MBF parameters derived by different methods were analyzed by Bland-Altman analysis; corresponding mean values were compared by t-test. RESULTS Using subject-specific diastolic T1 values, global diastolic MBF was 0.61 ± 0.13 mL/(min·g). It did not differ from global MBF derived from the study population-averaged T1 (P = 0.88), but the standard deviation of differences was large (0.07 mL/(min·g), 11% of mean MBF). Global diastolic and systolic MBF did not differ (P = 0.12), whereas global diastolic MBF using systolic (0.62 ± 0.13 mL/(min·g)) and diastolic T1 values differed (P < 0.05). If regional instead of global T1 values were used, segmental MBF was lower in segments with perfusion deficits (bias = -0.03 mL/(min·g), -7% of mean MBF, P < 0.05) but higher in segments without perfusion deficits (bias = 0.01 mL/(min·g), 1% of mean MBF, P < 0.05). DATA CONCLUSION Whereas cardiac phase-specific T1 values have a minor impact on MBF estimates, subject-specific and myocardial segment-specific T1 values substantially affect MBF quantification. LEVEL OF EVIDENCE 3 TECHNICAL EFFICACY STAGE: 3.
Collapse
Affiliation(s)
- Corina Kräuter
- Division of General Radiology, Department of RadiologyMedical University of GrazGrazAustria
- Institute of Medical EngineeringGraz University of TechnologyGrazAustria
| | - Ursula Reiter
- Division of General Radiology, Department of RadiologyMedical University of GrazGrazAustria
| | - Clemens Reiter
- Division of General Radiology, Department of RadiologyMedical University of GrazGrazAustria
| | - Volha Nizhnikava
- Division of General Radiology, Department of RadiologyMedical University of GrazGrazAustria
| | - Albrecht Schmidt
- Division of Cardiology, Department of Internal MedicineMedical University of GrazGrazAustria
| | - Rudolf Stollberger
- Institute of Medical EngineeringGraz University of TechnologyGrazAustria
| | - Michael Fuchsjäger
- Division of General Radiology, Department of RadiologyMedical University of GrazGrazAustria
| | - Gert Reiter
- Division of General Radiology, Department of RadiologyMedical University of GrazGrazAustria
- Research and DevelopmentSiemens Healthcare Diagnostics GmbHGrazAustria
| |
Collapse
|
19
|
Ando C, Yamamoto H, Shinoda N, Maeda H, Ozawa K, Ohmori Y, Yanagisawa F, Amano Y. [Effects of Heart Rate on Myocardial Native T 1 Value Acquired by 5s(3s)3s MOLLI Sequence]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2021; 77:172-181. [PMID: 33612695 DOI: 10.6009/jjrt.2021_jsrt_77.2.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Quantitative evaluation of myocardial native T1 value by measuring modified Look-Locker inversion recovery (MOLLI) method is clinically useful and is used for follow-up of various myocardial diseases. The heart rate during the scan can vary even in the same subjects. Therefore, it is important to know the effects of the heart rate on the native T1 value of the myocardium. In this study, we evaluated the effect of the heart rate on the T1 value in the 5s (3s) 3s scheme, time control data collection period of the MOLLI method, using phantom experiments and experiments of healthy volunteers. The 5s (3s) 3s scheme of the MOLLI method is considered to have little dependence on the heart rate, but the T1 value still varied up to about 7% depending on the heart rate, and was underestimated up to 8% during low heart rate using phantom experiments.
Collapse
Affiliation(s)
- Chisato Ando
- Division of Radiological Technology, Nihon University Hospital
| | | | - Naoki Shinoda
- Division of Radiological Technology, Nihon University Hospital
| | - Hitoshi Maeda
- Division of Radiological Technology, Nihon University Hospital
| | - Kazuo Ozawa
- Division of Radiological Technology, Nihon University Hospital
| | - Yuko Ohmori
- Department of Radiology, Nihon University Hospital
| | | | - Yasuo Amano
- Department of Radiology, Nihon University Hospital
| |
Collapse
|
20
|
Kim YC, Kim KR, Lee H, Choe YH. Fast calculation software for modified Look-Locker inversion recovery (MOLLI) T1 mapping. BMC Med Imaging 2021; 21:26. [PMID: 33579214 PMCID: PMC7881681 DOI: 10.1186/s12880-021-00558-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 02/02/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The purpose of this study was to develop a software tool and evaluate different T1 map calculation methods in terms of computation time in cardiac magnetic resonance imaging. METHODS The modified Look-Locker inversion recovery (MOLLI) sequence was used to acquire multiple inversion time (TI) images for pre- and post-contrast T1 mapping. The T1 map calculation involved pixel-wise curve fitting based on the T1 relaxation model. A variety of methods were evaluated using data from 30 subjects for computational efficiency: MRmap, python Levenberg-Marquardt (LM), python reduced-dimension (RD) non-linear least square, C++ single- and multi-core LM, and C++ single- and multi-core RD. RESULTS Median (interquartile range) computation time was 126 s (98-141) for the publicly available software MRmap, 261 s (249-282) for python LM, 77 s (74-80) for python RD, 3.4 s (3.1-3.6) for C++ multi-core LM, and 1.9 s (1.9-2.0) for C++ multi-core RD. The fastest C++ multi-core RD and the publicly available MRmap showed good agreement of myocardial T1 values, resulting in 95% Bland-Altman limits of agreement of (- 0.83 to 0.58 ms) and (- 6.57 to 7.36 ms) with mean differences of - 0.13 ms and 0.39 ms, for the pre- and post-contrast, respectively. CONCLUSION The C++ multi-core RD was the fastest method on a regular eight-core personal computer for pre- or post-contrast T1 map calculation. The presented software tool (fT1fit) facilitated rapid T1 map and extracellular volume fraction map calculations.
Collapse
Affiliation(s)
- Yoon-Chul Kim
- Clinical Research Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Khu Rai Kim
- Department of Electronic Engineering, Sogang University, Seoul, South Korea
| | - Hyelee Lee
- Department of Mathematics, Sogang University, Seoul, South Korea
| | - Yeon Hyeon Choe
- Department of Radiology and HVSI Imaging Center, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Ilwon-ro, Gangnam-gu, Seoul, 06351, South Korea.
| |
Collapse
|
21
|
Erden A, Kuru Öz D, Peker E, Kul M, Ateş FSÖ, Erden İ, İdilman R. MRI quantification techniques in fatty liver: the diagnostic performance of hepatic T1, T2, and stiffness measurements in relation to the proton density fat fraction. Diagn Interv Radiol 2021; 27:7-14. [PMID: 33290237 PMCID: PMC7837725 DOI: 10.5152/dir.2020.19654] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/22/2020] [Accepted: 04/05/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE Nonalcoholic fatty liver disease (NAFLD) can progress to liver cirrhosis and is predicted to become the most frequent indication for liver transplantation in the near future. Noninvasive assessment of NAFLD is important for diagnosis and patient management. This study aims to prospectively determine the liver stiffness and T1 and T2 values in patients with NAFLD and to compare the diagnostic performance of magnetic resonance elastography (MRE) and mapping techniques in relation to the proton density fat fraction (PDFF). METHODS Eighty-three patients with NAFLD and 26 participants with normal livers were imaged with a 1.5 T scanner. PDFF measurements obtained from the multiecho Dixon technique were used to quantify the liver fat. MRE, native T1 mapping (modified Look-Locker inversion recovery [MOLLI] schemes 5(3)3, 3(3)3(3)5, and 3(2)3(2)5 and the B1-corrected variable flip angle [VFA] method), and T2 mapping values were correlated with PDFF. The diagnostic performance of MRE and the mapping techniques were analyzed and compared. RESULTS T1 values measured with the MOLLI schemes and the B1-corrected VFA (P < 0.001), and the stiffness values from MRE (P = 0.047) were significantly higher in the NAFLD group. No significant difference was found between the groups in terms of T2 values (P = 0.127). In differentiation of the NAFLD and control groups, the B1-corrected VFA technique had slightly higher accuracy and area under the curve (AUC) than the MOLLI schemes. In the NAFLD group, there was a good correlation between the PDFF, MOLLI 3(3)3(3)5 and 3(2)3(2)5, and VFA T1 measurements (r=0.732; r=0.735; r=0.716, P < 0.001, respectively). CONCLUSION Liver T1 mapping techniques have the potential to distinguish steatotic from nonsteatotic livers, and T1 values seem to have a strong correlation with the liver fat content.
Collapse
Affiliation(s)
- Ayşe Erden
- From the Departments of Radiology (A.E., D.K.Ö. , E.P., M.K., İ.E.), Biostatistics (F.S.Ö.A.), and Gastroenterology (R.İ.), Ankara University School of Medicine, Ankara, Turkey
| | - Diğdem Kuru Öz
- From the Departments of Radiology (A.E., D.K.Ö. , E.P., M.K., İ.E.), Biostatistics (F.S.Ö.A.), and Gastroenterology (R.İ.), Ankara University School of Medicine, Ankara, Turkey
| | - Elif Peker
- From the Departments of Radiology (A.E., D.K.Ö. , E.P., M.K., İ.E.), Biostatistics (F.S.Ö.A.), and Gastroenterology (R.İ.), Ankara University School of Medicine, Ankara, Turkey
| | - Melahat Kul
- From the Departments of Radiology (A.E., D.K.Ö. , E.P., M.K., İ.E.), Biostatistics (F.S.Ö.A.), and Gastroenterology (R.İ.), Ankara University School of Medicine, Ankara, Turkey
| | - Funda Seher Özalp Ateş
- From the Departments of Radiology (A.E., D.K.Ö. , E.P., M.K., İ.E.), Biostatistics (F.S.Ö.A.), and Gastroenterology (R.İ.), Ankara University School of Medicine, Ankara, Turkey
| | - İlhan Erden
- From the Departments of Radiology (A.E., D.K.Ö. , E.P., M.K., İ.E.), Biostatistics (F.S.Ö.A.), and Gastroenterology (R.İ.), Ankara University School of Medicine, Ankara, Turkey
| | - Ramazan İdilman
- From the Departments of Radiology (A.E., D.K.Ö. , E.P., M.K., İ.E.), Biostatistics (F.S.Ö.A.), and Gastroenterology (R.İ.), Ankara University School of Medicine, Ankara, Turkey
| |
Collapse
|
22
|
Cheung YF, Lam WWM, So EKF, Chow PC. Differential myocardial fibrosis of the systemic right ventricle and subpulmonary left ventricle after atrial switch operation for complete transposition of the great arteries. IJC HEART & VASCULATURE 2020; 30:100612. [PMID: 32817881 PMCID: PMC7424203 DOI: 10.1016/j.ijcha.2020.100612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/27/2020] [Accepted: 07/29/2020] [Indexed: 11/03/2022]
Abstract
Background This study aimed to assess diffuse myocardial fibrosis of the systemic right ventricle and subpulmonary left ventricle in patients after Senning or Mustard operation for complete transposition of the great artery (TGA) using cardiac magnetic resonance (CMR) T1 mapping. Methods Thirty-one adult TGA patients after Senning (n = 24) or Mustard (n = 7) operation were studied at the age of 33.3 ± 4.0 years. Systemic right ventricular (RV) and subpulmonary left ventricular (LV) volumes, ejection fraction, and myocardial T1 values and extracellular volume fraction (ECV) were determined using CMR. Results The RV and LV ejection fractions were 47.0 ± 10.9% and 61.3 ± 7.4%, respectively. Compared to published normative values, patients had significantly greater RV and LV native T1 and ECV values (all p < 0.001). For each of the basal, mid, and apical segments, the LV native T1 and ECV values were significantly greater in the left than the right ventricle (all p < 0.05). There is a significant trend on progressive increase in ECV value from the basal towards the apical segments in both the right (p = 0.002) and the left (p < 0.001) ventricle. Modestly strong correlations were found between RV and LV native T1 (r = 0.60, p < 0.001) and ECV (r = 0.49, p = 0.005) values but not with ejection fractions of the respective ventricles. Conclusions Differential myocardial fibrosis, with greater involvement of the subpulmonary left ventricle than the systemic right ventricle, is present in patients with TGA after atrial switch operation. Associations between the magnitude of RV and LV fibrosis suggests adverse ventricular-ventricular interaction at the cardiac extracellular matrix level.
Collapse
Affiliation(s)
- Yiu-Fai Cheung
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Wendy W M Lam
- Department of Radiology, Queen Mary, Hospital, Hong Kong, China
| | - Edwina K F So
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Pak-Cheong Chow
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| |
Collapse
|
23
|
Puyol-Antón E, Ruijsink B, Baumgartner CF, Masci PG, Sinclair M, Konukoglu E, Razavi R, King AP. Automated quantification of myocardial tissue characteristics from native T 1 mapping using neural networks with uncertainty-based quality-control. J Cardiovasc Magn Reson 2020; 22:60. [PMID: 32814579 PMCID: PMC7439533 DOI: 10.1186/s12968-020-00650-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Tissue characterisation with cardiovascular magnetic resonance (CMR) parametric mapping has the potential to detect and quantify both focal and diffuse alterations in myocardial structure not assessable by late gadolinium enhancement. Native T1 mapping in particular has shown promise as a useful biomarker to support diagnostic, therapeutic and prognostic decision-making in ischaemic and non-ischaemic cardiomyopathies. METHODS Convolutional neural networks (CNNs) with Bayesian inference are a category of artificial neural networks which model the uncertainty of the network output. This study presents an automated framework for tissue characterisation from native shortened modified Look-Locker inversion recovery ShMOLLI T1 mapping at 1.5 T using a Probabilistic Hierarchical Segmentation (PHiSeg) network (PHCUMIS 119-127, 2019). In addition, we use the uncertainty information provided by the PHiSeg network in a novel automated quality control (QC) step to identify uncertain T1 values. The PHiSeg network and QC were validated against manual analysis on a cohort of the UK Biobank containing healthy subjects and chronic cardiomyopathy patients (N=100 for the PHiSeg network and N=700 for the QC). We used the proposed method to obtain reference T1 ranges for the left ventricular (LV) myocardium in healthy subjects as well as common clinical cardiac conditions. RESULTS T1 values computed from automatic and manual segmentations were highly correlated (r=0.97). Bland-Altman analysis showed good agreement between the automated and manual measurements. The average Dice metric was 0.84 for the LV myocardium. The sensitivity of detection of erroneous outputs was 91%. Finally, T1 values were automatically derived from 11,882 CMR exams from the UK Biobank. For the healthy cohort, the mean (SD) corrected T1 values were 926.61 (45.26), 934.39 (43.25) and 927.56 (50.36) for global, interventricular septum and free-wall respectively. CONCLUSIONS The proposed pipeline allows for automatic analysis of myocardial native T1 mapping and includes a QC process to detect potentially erroneous results. T1 reference values were presented for healthy subjects and common clinical cardiac conditions from the largest cohort to date using T1-mapping images.
Collapse
Affiliation(s)
- Esther Puyol-Antón
- School of Biomedical Engineering & Imaging Sciences, King’s College London, Rayne Institute, 4th Floor Lambeth Wing St Thomas Hospital, Westminster Bridge Road, London, SE1 7EH UK
| | - Bram Ruijsink
- School of Biomedical Engineering & Imaging Sciences, King’s College London, Rayne Institute, 4th Floor Lambeth Wing St Thomas Hospital, Westminster Bridge Road, London, SE1 7EH UK
- Department of Adult and Paediatric Cardiology, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | | | - Pier-Giorgio Masci
- School of Biomedical Engineering & Imaging Sciences, King’s College London, Rayne Institute, 4th Floor Lambeth Wing St Thomas Hospital, Westminster Bridge Road, London, SE1 7EH UK
- Department of Adult and Paediatric Cardiology, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Matthew Sinclair
- Biomedical Image Analysis Group, Department of Computing, Imperial College London, 3rd floor Huxley Building, 180 Queen’s Gate, London, SW7 2AZ UK
| | - Ender Konukoglu
- Computer Vision Lab, ETH Zürich, Sternwartstrasse 7, Zürich, Switzerland
| | - Reza Razavi
- School of Biomedical Engineering & Imaging Sciences, King’s College London, Rayne Institute, 4th Floor Lambeth Wing St Thomas Hospital, Westminster Bridge Road, London, SE1 7EH UK
- Department of Adult and Paediatric Cardiology, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Andrew P. King
- School of Biomedical Engineering & Imaging Sciences, King’s College London, Rayne Institute, 4th Floor Lambeth Wing St Thomas Hospital, Westminster Bridge Road, London, SE1 7EH UK
| |
Collapse
|
24
|
Tonet E, Baggiano A, Pavasini R, Guglielmo M, Censi S, Cossu A, Rapezzi C, Muscogiuri G, Squeri A, Campo G, Pontone G. Current evidence on the diagnostic and prognostic role of native T1 mapping in heart diseases. Trends Cardiovasc Med 2020; 31:448-454. [PMID: 32777358 DOI: 10.1016/j.tcm.2020.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/24/2020] [Accepted: 08/04/2020] [Indexed: 12/16/2022]
Abstract
Tissue characterization represents a prerogative of cardiac magnetic resonance. Beside late gadolinium enhancement, native T1 mapping (nT1m) reveals tissue composition. It could represent a useful tool for example when contrast medium can't be administrated. The present review summarises current evidence about nT1m in main heart diseases.
Collapse
Affiliation(s)
- Elisabetta Tonet
- Cardiology Unit, Azienda Ospedaliero-Universitaria of Ferrara, Via Aldo Moro 8, Cona, Province of Ferrara, Italy.
| | - Andrea Baggiano
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Rita Pavasini
- Cardiology Unit, Azienda Ospedaliero-Universitaria of Ferrara, Via Aldo Moro 8, Cona, Province of Ferrara, Italy
| | - Marco Guglielmo
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Stefano Censi
- Maria Cecilia Hospital, GVM Care & Research, Cotignola, Ravenna, Italy
| | - Alberto Cossu
- Department of Morphology, Surgery and Experimental Medicine, Section of Radiology, University of Ferrara, Province of Ferrara, Italy
| | - Claudio Rapezzi
- Maria Cecilia Hospital, GVM Care & Research, Cotignola, Ravenna, Italy
| | - Giuseppe Muscogiuri
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Angelo Squeri
- Maria Cecilia Hospital, GVM Care & Research, Cotignola, Ravenna, Italy
| | - Gianluca Campo
- Cardiology Unit, Azienda Ospedaliero-Universitaria of Ferrara, Via Aldo Moro 8, Cona, Province of Ferrara, Italy; Maria Cecilia Hospital, GVM Care & Research, Cotignola, Ravenna, Italy
| | - Gianluca Pontone
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| |
Collapse
|
25
|
Urzua Fresno C, Shalmon T, Calvillo Argüelles O, Wintersperger BJ, Thavendiranathan P. Cardiovascular Magnetic Resonance Relaxometry in Early Detection of Anthracycline Cardiotoxicity. CURRENT CARDIOVASCULAR IMAGING REPORTS 2020. [DOI: 10.1007/s12410-019-9524-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
26
|
|