1
|
Moscatelli S, Leo I, Bianco F, Surkova E, Pezel T, Donald NA, Triumbari EKA, Bassareo PP, Pradhan A, Cimini A, Perrone MA. The Role of Multimodality Imaging in Patients with Congenital Heart Disease and Infective Endocarditis. Diagnostics (Basel) 2023; 13:3638. [PMID: 38132222 PMCID: PMC10742664 DOI: 10.3390/diagnostics13243638] [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: 11/05/2023] [Revised: 12/02/2023] [Accepted: 12/09/2023] [Indexed: 12/23/2023] Open
Abstract
Infective endocarditis (IE) represents an important medical challenge, particularly in patients with congenital heart diseases (CHD). Its early and accurate diagnosis is crucial for effective management to improve patient outcomes. Multimodality imaging is emerging as a powerful tool in the diagnosis and management of IE in CHD patients, offering a comprehensive and integrated approach that enhances diagnostic accuracy and guides therapeutic strategies. This review illustrates the utilities of each single multimodality imaging, including transthoracic and transoesophageal echocardiography, cardiac computed tomography (CCT), cardiovascular magnetic resonance imaging (CMR), and nuclear imaging modalities, in the diagnosis of IE in CHD patients. These imaging techniques provide crucial information about valvular and intracardiac structures, vegetation size and location, abscess formation, and associated complications, helping clinicians make timely and informed decisions. However, each one does have limitations that influence its applicability.
Collapse
Affiliation(s)
- Sara Moscatelli
- Inherited Cardiovascular Diseases, Great Ormond Street Hospital, Children NHS Foundation Trust, London WC1N 3JH, UK; (S.M.); (N.A.D.)
- Institute of Cardiovascular Sciences, University College London, London WC1E 6BT, UK
| | - Isabella Leo
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy;
- CMR Unit, Cardiology Department, Royal Brompton and Harefield Hospitals, Guys’ and St Thomas’ NHS Trust, London SW3 5NP, UK
| | - Francesco Bianco
- Cardiovascular Sciences Department, AOU “Ospedali Riuniti”, 60126 Ancona, Italy;
| | - Elena Surkova
- Department of Echocardiography, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London SW3 5NP, UK;
| | - Théo Pezel
- Département de Cardiologie, Université Paris-Cité, Hôpital Universitaire de Lariboisière, Assistance Publique des Hôpitaux de Paris (APHP), Inserm UMRS 942, 75010 Paris, France;
| | - Natasha Alexandra Donald
- Inherited Cardiovascular Diseases, Great Ormond Street Hospital, Children NHS Foundation Trust, London WC1N 3JH, UK; (S.M.); (N.A.D.)
| | | | - Pier Paolo Bassareo
- School of Medicine, University College of Dublin, Mater Misericordiae University Hospital, Children’s Health Ireland Crumlin, D07 R2WY Dublin, Ireland;
| | - Akshyaya Pradhan
- Department of Cardiology, King George’s Medical University, Lucknow 226003, India;
| | - Andrea Cimini
- Nuclear Medicine Unit, St. Salvatore Hospital, 67100 L’Aquila, Italy
| | - Marco Alfonso Perrone
- Division of Cardiology and CardioLab, Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
- Clinical Pathways and Epidemiology Unit, Bambino Gesù Children’s Hospital IRCCS, 00165 Rome, Italy
| |
Collapse
|
2
|
Mikail N, Hyafil F. Nuclear Imaging in Infective Endocarditis. Pharmaceuticals (Basel) 2021; 15:ph15010014. [PMID: 35056069 PMCID: PMC8777992 DOI: 10.3390/ph15010014] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/17/2021] [Accepted: 12/20/2021] [Indexed: 12/13/2022] Open
Abstract
Infective endocarditis (IE) is a life-threatening disease with stable prevalence despite prophylactic, diagnostic, and therapeutic advances. In parallel to the growing number of cardiac devices implanted, the number of patients developing IE on prosthetic valves and cardiac implanted electronic device (CIED) is increasing at a rapid pace. The diagnosis of IE is particularly challenging, and currently relies on the Duke-Li modified classification, which include clinical, microbiological, and imaging criteria. While echocardiography remains the first line imaging technique, especially in native valve endocarditis, the incremental value of two nuclear imaging techniques, 18F-fluorodeoxyglucose positron emission tomography with computed tomography (18F-FDG-PET/CT) and white blood cells single photon emission tomography with computed tomography (WBC-SPECT), has emerged for the management of prosthetic valve and CIED IE. In this review, we will summarize the procedures for image acquisition, discuss the role of 18F-FDG-PET/CT and WBC-SPECT imaging in different clinical situations of IE, and review the respective diagnostic performance of these nuclear imaging techniques and their integration into the diagnostic algorithm for patients with a suspicion of IE.
Collapse
Affiliation(s)
- Nidaa Mikail
- Department of Nuclear Medicine, Beaujon University Hospital, Assistance Publique-Hôpitaux de Paris, 100 Boulevard du Général Leclerc, 92110 Clichy, France;
- Department of Nuclear Medicine, University Hospital Zurich, Rämistrasse 100, CH-8006 Zurich, Switzerland
- Center for Molecular Cardiology, University of Zurich, Wagistrasse 12, CH-8952 Schlieren, Switzerland
| | - Fabien Hyafil
- Department of Nuclear Medicine, Georges-Pompidou European Hospital, DMU IMAGINA, Assistance Publique-Hôpitaux de Paris, University of Paris, 20 Rue Leblanc, 75015 Paris, France
- Correspondence: ; Tel.: +33-01-56-09-56-24
| |
Collapse
|
3
|
Dilsizian V, Budde RPJ, Chen W, Mankad SV, Lindner JR, Nieman K. Best Practices for Imaging Cardiac Device-Related Infections and Endocarditis: A JACC: Cardiovascular Imaging Expert Panel Statement. JACC Cardiovasc Imaging 2021; 15:891-911. [PMID: 34922877 DOI: 10.1016/j.jcmg.2021.09.029] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/01/2021] [Accepted: 09/13/2021] [Indexed: 12/13/2022]
Abstract
The diagnosis of cardiac device infection and, more importantly, accurate localization of the infection site, such as defibrillator pocket, pacemaker lead, along the peripheral driveline or central portion of the left ventricular assist device, prosthetic valve ring abscesses, and perivalvular extensions, remain clinically challenging. Although transthoracic and transesophageal echocardiography are the first-line imaging tests in suspected endocarditis and for assessing hemodynamic complications, recent studies suggest that cardiac computed tomography (CT) or CT angiography and functional imaging with 18F-fluoro-2-deoxyglucose (FDG) positron emission tomography (PET) with CT (FDG PET/CT) may have an incremental role in technically limited or inconclusive cases on echocardiography. One of the key benefits of FDG PET/CT is in its detection of inflammatory cells early in the infection process, before morphological damages ensue. However, there are many unanswered questions in the literature. In this document, we provide consensus on best practices among the various imaging studies, which includes the detection of cardiac device infection, differentiation of infection from inflammation, image-guided patient management, and detailed recommendations on patient preparation, image acquisition, processing, interpretation, and standardized reporting.
Collapse
Affiliation(s)
- Vasken Dilsizian
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA.
| | - Ricardo P J Budde
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Wengen Chen
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Sunil V Mankad
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Jonathan R Lindner
- Knight Cardiovascular Institute and the Oregon National Primate Research Center, Oregon Health & Science University, Portland, Oregon, USA
| | - Koen Nieman
- Department of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California, USA
| |
Collapse
|
4
|
Chen W, Dilsizian V. Diagnosis and Image-guided Therapy of Cardiac Left Ventricular Assist Device Infections. Semin Nucl Med 2020; 51:357-363. [PMID: 33280782 DOI: 10.1053/j.semnuclmed.2020.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Due to limited availability of donor hearts, more and more end stage heart failure patients are dependent on left ventricular assist device (LVAD) as their destination therapy rather than the original intended use as a bridge for heart transplantation. While LVADs improve life expectancy in these patients, infection emerges as one of the major adverse events. Early and accurate localization of LVAD infection is critical, as it can significantly influence clinical management decisions and ultimately impact patient outcome. Although the International Society of Heart and Lung Transplantation has defined 3 categories for LVAD infection: (1) LVAD-specific infection, (2) LVAD-related infection, and (3) non-LVAD infection, there is still lack of standardized criteria for diagnosing these 3 types of LVAD infections. Morphologically based imaging tools such as transesophageal echocardiogram and cardiac computed tomography (CT) or CT angiogram have limited roles in diagnosing LVAD infections due to their nonspecific findings, often affected by significant streaking and beam hardening artifacts from the metal device. In contrast, 18F-fluorodeoxyglucose (FDG) Positron Emission Tomography (PET)/CT has repeatedly shown a high sensitivity and specificity for LVAD infection diagnosis, albeit in small number of subjects. Beyond its accuracy for detecting infection, FDG PET/CT can predict clinical outcome based on the location of LVAD infection. As a functional imaging tool, FDG PET/CT can demonstrate the extent and severity of LVAD infection, as well as infectious embolism and potential extra-cardiac source of infection, which are all critical for providing optimal patient care, justifying its judicious and precise use in the workup of LVAD infection.
Collapse
Affiliation(s)
- Wengen Chen
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland
| | - Vasken Dilsizian
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland.
| |
Collapse
|
5
|
Holcman K, Rubiś P, Ząbek A, Ćmiel B, Szot W, Boczar K, Wiśniowska-Śmiałek S, Stępień A, Małecka B, Podolec P, Kostkiewicz M. The Prognostic Value of 99mTc-HMPAO-Labeled Leucocyte SPECT/CT in Cardiac Device-Related Infective Endocarditis. JACC Cardiovasc Imaging 2020; 13:1739-1751. [DOI: 10.1016/j.jcmg.2020.01.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/08/2020] [Accepted: 01/16/2020] [Indexed: 01/08/2023]
|
6
|
Mahmood M, Abu Saleh O. The Role of 18-F FDG PET/CT in Imaging of Endocarditis and Cardiac Device Infections. Semin Nucl Med 2020; 50:319-330. [DOI: 10.1053/j.semnuclmed.2020.03.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
7
|
Wang TKM, Sánchez-Nadales A, Igbinomwanhia E, Cremer P, Griffin B, Xu B. Diagnosis of Infective Endocarditis by Subtype Using 18F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography: A Contemporary Meta-Analysis. Circ Cardiovasc Imaging 2020; 13:e010600. [PMID: 32507019 DOI: 10.1161/circimaging.120.010600] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Infective endocarditis (IE) remains a difficult to diagnose condition associated with high mortality. 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) has recently emerged as another IE imaging modality, although diagnostic accuracy varies across observational studies and types of IE. This meta-analysis assessed the diagnostic performance of 18F-FDG PET/CT for IE and its subtypes. Methods We searched Pubmed, Cochrane, and Embase from January 1980 to September 2019 for studies reporting both sensitivity and specificity of 18F-FDG PET/CT for IE. Meta-Disc 1.4 was used to pool data for all cases of IE and its subgroups of native valve IE, prosthetic valve IE, and cardiac implantable electronic devices IE. Results We screened 2566 records from the search, assessed 52 full-text articles, and included 26 studies totaling 1358 patients (509 IE cases). Pooled sensitivity and specificity (95% CI, inconsistency I-square statistic) were 0.74 (0.70-0.77, 71.5%) and 0.88 (0.86-0.91, 78.5%) for all cases of endocarditis. Corresponding parameters for native valve IE were sensitivity 0.31 (0.21-0.41, 29.4%) and specificity 0.98 (0.95-0.99, 34.4%); for prosthetic valve IE: sensitivity 0.86 (0.81-0.89, 60.0%) and specificity 0.84 (0.79-0.88, 75.2%); and for cardiac implantable electronic devices IE: sensitivity 0.72 (0.61-0.81, 76.2%) and specificity 0.83 (0.75-0.89, 83.6%). Pooled sensitivities and specificities were higher for the 17 studies since 2015 than the 9 studies published before 2015. Conclusions 18F-FDG PET/CT had high specificity for all IE subtypes; however, sensitivity was markedly lower for native valve IE than prosthetic valve IE and cardiac implantable electronic devices IE. It is, therefore, a useful adjunct modality for assessing endocarditis, especially in the challenging scenarios of prosthetic valve IE and cardiac implantable electronic devices IE, with improving performance over time, related to advances in 18F-FDG PET/CT techniques.
Collapse
Affiliation(s)
- Tom Kai Ming Wang
- Section of Cardiovascular Imaging, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, OH (T.K.M.W., P.C., B.G., B.X.)
| | | | - Efehi Igbinomwanhia
- Department of Medicine, Advocate Illinois Masonic Medical Center, Chicago (A.S.N., E.I.)
| | - Paul Cremer
- Section of Cardiovascular Imaging, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, OH (T.K.M.W., P.C., B.G., B.X.)
| | - Brian Griffin
- Section of Cardiovascular Imaging, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, OH (T.K.M.W., P.C., B.G., B.X.)
| | - Bo Xu
- Section of Cardiovascular Imaging, Robert and Suzanne Tomsich Department of Cardiovascular Medicine, Sydell and Arnold Miller Family Heart, Vascular and Thoracic Institute, Cleveland Clinic, OH (T.K.M.W., P.C., B.G., B.X.)
| |
Collapse
|
8
|
Clinical usefulness of FDG-PET/CT for identification of abnormal extra-cardiac foci in patients with infective endocarditis. Int J Cardiovasc Imaging 2020; 36:939-946. [PMID: 32060776 DOI: 10.1007/s10554-020-01787-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/31/2020] [Indexed: 02/03/2023]
Abstract
The aim of the study was to evaluate the ability to detect extra-cardiac foci by means of whole-body 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) in patients with definite endocarditis (IE) according to the modified Duke criteria and investigate the clinical impact of the findings. From January 2011 to December 2015 we included 178 patients (mean age 66 ± 14 years, 25% female) with IE in this multicentre study. FDG-PET/CT was part of the work-up for extra-cardiac foci in the including hospitals and was performed at a median of 9 days (IQR 10) after IE was diagnosed. In 114 patients FDG-PET/CT identified 166 lesions: 52 (31%) infectious lesions, 21 (13%) cases of cancer, 7 (4%) cases of embolism, 60 (36%) reactive findings, and 26 (16%) other types of lesions. A total of 74 new extra-cardiac findings, not previously discovered by other modalities, were identified in 62 patients and resulted in additional investigations in 29 patients and a change in treatment in 18 patients (10%). The most frequent diagnoses discovered by FDG-PET/CT were colon polyps, cancer, and spondylodiscitis. There was a higher rate of findings leading to a change in treatment in patients above 67 years of age infected with other bacterial aetiologies than streptococci. FDG-PET/CT was useful to detect extra-cardiac foci. FDG-PET/CT findings may lead to unnecessary investigations. One out of 10 the patients with definite endocarditis had underwent a change in treatment regimen based on the FDG-PET/CT findings.
Collapse
|
9
|
Israel O, Pellet O, Biassoni L, De Palma D, Estrada-Lobato E, Gnanasegaran G, Kuwert T, la Fougère C, Mariani G, Massalha S, Paez D, Giammarile F. Two decades of SPECT/CT - the coming of age of a technology: An updated review of literature evidence. Eur J Nucl Med Mol Imaging 2019; 46:1990-2012. [PMID: 31273437 PMCID: PMC6667427 DOI: 10.1007/s00259-019-04404-6] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 06/14/2019] [Indexed: 02/08/2023]
Abstract
PURPOSE Single-photon emission computed tomography (SPECT) combined with computed tomography (CT) was introduced as a hybrid SPECT/CT imaging modality two decades ago. The main advantage of SPECT/CT is the increased specificity achieved through a more precise localization and characterization of functional findings. The improved diagnostic accuracy is also associated with greater diagnostic confidence and better inter-specialty communication. METHODS This review presents a critical assessment of the relevant literature published so far on the role of SPECT/CT in a variety of clinical conditions. It also includes an update on the established evidence demonstrating both the advantages and limitations of this modality. CONCLUSIONS For the majority of applications, SPECT/CT should be a routine imaging technique, fully integrated into the clinical decision-making process, including oncology, endocrinology, orthopaedics, paediatrics, and cardiology. Large-scale prospective studies are lacking, however, on the use of SPECT/CT in certain clinical domains such as neurology and lung disorders. The review also presents data on the complementary role of SPECT/CT with other imaging modalities and a comparative analysis, where available.
Collapse
Affiliation(s)
- Ora Israel
- Rappaport School of Medicine, Israel Institute of Technology, Haifa, Israel.
| | - O Pellet
- Nuclear Medicine and Diagnostic Imaging Section International Atomic Energy Agency, Vienna, Austria
| | - L Biassoni
- Department of Radiology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - D De Palma
- Nuclear Medicine Unit, Circolo Hospital, ASST-Settelaghi, Varese, Italy
| | - E Estrada-Lobato
- Nuclear Medicine and Diagnostic Imaging Section International Atomic Energy Agency, Vienna, Austria
| | - G Gnanasegaran
- Department of Nuclear Medicine, Royal Free NHS Foundation Trust, London, UK
| | - T Kuwert
- Clinic of Nuclear Medicine, University Hospital, Erlangen, Germany
| | - C la Fougère
- Division of Nuclear Medicine and Clinical Molecular Imaging, Department of Radiology, University Hospital, Tubingen, Germany
| | - G Mariani
- Regional Center of Nuclear Medicine, University of Pisa, Pisa, Italy
| | - S Massalha
- Department of Medicine, University of Ottawa Heart Institute, Ottawa, Canada
- Department of Nuclear Medicine, Rambam Healthcare Campus, Haifa, Israel
| | - D Paez
- Nuclear Medicine and Diagnostic Imaging Section International Atomic Energy Agency, Vienna, Austria
| | - F Giammarile
- Nuclear Medicine and Diagnostic Imaging Section International Atomic Energy Agency, Vienna, Austria
| |
Collapse
|
10
|
Chen W, Dilsizian V. Is
18
F-Flurodeoxyglucose Positron Emission Tomography/Computed Tomography More Reliable Than Clinical Standard Diagnosis for Guiding Patient Management Decisions in Cardiac Implantable Electronic Device Infection? Circ Cardiovasc Imaging 2019; 12:e009453. [DOI: 10.1161/circimaging.119.009453] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Wengen Chen
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore
| | - Vasken Dilsizian
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore
| |
Collapse
|
11
|
Mahmood M, Kendi AT, Ajmal S, Farid S, O'Horo JC, Chareonthaitawee P, Baddour LM, Sohail MR. Meta-analysis of 18F-FDG PET/CT in the diagnosis of infective endocarditis. J Nucl Cardiol 2019; 26:922-935. [PMID: 29086386 DOI: 10.1007/s12350-017-1092-8] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 09/27/2017] [Accepted: 10/02/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND The current diagnosis of infective endocarditis (IE) is based on the modified Duke criteria, which has approximately 80% sensitivity for the diagnosis of native valve endocarditis (NVE), with lower sensitivity for the diagnosis of prosthetic valve endocarditis (PVE) and culture-negative endocarditis. There is preliminary evidence that 18F-FDG PET/CT is an adjunctive diagnostic test with high accuracy reported in small studies to date. We therefore performed a meta-analysis of studies evaluating the use of PET/CT in the diagnosis of IE to establish a more precise estimate of accuracy. METHODS PubMed, Embase, Cochrane library, CINAHL, Web of Knowledge, and www.clinicaltrials.gov were searched from January 1990 to April 2017 for studies evaluating the accuracy of PET/CT for the evaluation of possible IE. RESULTS We identified 13 studies involving 537 patients that were included in the meta-analysis. The pooled sensitivity of PET/CT for diagnosis of IE was 76.8% (95% CI 71.8-81.4%; Q = 39.9, P < 0.01; I2 = 69.9%) and the pooled specificity was 77.9% (95% CI 71.9-83.2%; Q = 44.42, P < 0.01; I2 = 73.0%). Diagnostic accuracy was improved for PVE with sensitivity of 80.5% (95% CI 74.1-86.0%; Q = 25.5, P < 0.01; I2 = 72.5%) and specificity of 73.1% (95% CI 63.8-81.2%; Q = 32.1, P < 0.01; I2 = 78.2%). Additional extracardiac foci of infection were found on 17% of patients on whole body PET/CT. CONCLUSION PET/CT is a useful adjunctive diagnostic tool in the evaluation of diagnostically challenging cases of IE, particularly in prosthetic valve endocarditis. It also has the potential to detect clinically relevant extracardiac foci of infection, malignancy, and other sources of inflammation leading to more appropriate treatment regimens and surgical intervention.
Collapse
Affiliation(s)
- Maryam Mahmood
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic College of Medicine, 200 1st Street SW, Rochester, MN, 55905, USA.
| | - Ayse Tuba Kendi
- Division of Nuclear Medicine, Department of Radiology, Mayo Clinic, Rochester, MN, USA
| | - Saira Ajmal
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic College of Medicine, 200 1st Street SW, Rochester, MN, 55905, USA
| | - Saira Farid
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic College of Medicine, 200 1st Street SW, Rochester, MN, 55905, USA
| | - John C O'Horo
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic College of Medicine, 200 1st Street SW, Rochester, MN, 55905, USA
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | | | - Larry M Baddour
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic College of Medicine, 200 1st Street SW, Rochester, MN, 55905, USA
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - M Rizwan Sohail
- Division of Infectious Diseases, Department of Medicine, Mayo Clinic College of Medicine, 200 1st Street SW, Rochester, MN, 55905, USA
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| |
Collapse
|
12
|
de Vaugelade C, Mesguich C, Nubret K, Camou F, Greib C, Dournes G, Debordeaux F, Hindie E, Barandon L, Tlili G. Infections in patients using ventricular-assist devices: Comparison of the diagnostic performance of 18F-FDG PET/CT scan and leucocyte-labeled scintigraphy. J Nucl Cardiol 2019; 26:42-55. [PMID: 29948892 DOI: 10.1007/s12350-018-1323-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Accepted: 03/26/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND The usage of left-ventricular-assist device (LVAD) is increasing in patients presenting with advanced heart failure. However, device-related infections are a challenge to recognize and to treat, with an important morbidity and mortality rate. The role of nuclear medicine imaging remains not well established for LVAD infections. The present study compared the accuracy of positron emission tomography/computed tomography with 18F-fludeoxyglucose (18F-FDG PET/CT) and radiolabeled leucocyte scintigraphy for the diagnosis of infections in patients supported with a continuous-flow LVAD. METHODS From a prospectively maintained database, we retrospectively analyzed the diagnostic performance of radiolabeled leucocyte scintigraphy and 18F-FDG PET/CT in 24 patients who had a LVAD with a suspected device-related infection. Both examinations were routinely performed in all patients. Infection was assessed by the International Society for Heart and Lung Transplantation criteria. RESULTS Twenty-four patients were included: 15 had a specific VAD infection (5 cardiac-LVAD and 10 driveline), 6 had a VAD-related infection, while 3 patients had a non-VAD-related infection. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 95.2%, 66.7%, 95.2%, 66.7%, and 91.6%, respectively, for 18F-FDG-PET; and 71.4%, 100%, 100%, 33.3%, and 75%, respectively, for leucocyte scintigraphy. 18F-FDG PET/CT showed significantly higher sensitivity (P = 0.01) than leucocyte scintigraphy. CONCLUSION 18F-FDG PET/CT and radiolabeled leucocyte scintigraphy single-photon emission computed tomography carry high performance in the diagnostic of LVAD infections. 18F-FDG PET/CT shows significantly higher sensitivity and could be proposed as first-line nuclear medicine procedure.
Collapse
Affiliation(s)
- Carole de Vaugelade
- Nuclear Medicine Department, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France.
| | - Charles Mesguich
- Nuclear Medicine Department, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
| | - Karine Nubret
- Cardiology Department, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
| | - Fabrice Camou
- Intensive Care Department, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
| | - Carine Greib
- Internal Medicine Department, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
| | - Gael Dournes
- Radiology Department, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
| | - Frédéric Debordeaux
- Nuclear Medicine Department, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
| | - Elif Hindie
- Nuclear Medicine Department, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
- Univ. Bordeaux, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
| | - Laurent Barandon
- Univ. Bordeaux, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
- Thoracic Surgery Department, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
| | - Ghoufrane Tlili
- Nuclear Medicine Department, CHU de Bordeaux, Avenue de Magellan, 33604, Pessac, France
| |
Collapse
|
13
|
Merits of FDG PET/CT and Functional Molecular Imaging Over Anatomic Imaging With Echocardiography and CT Angiography for the Diagnosis of Cardiac Device Infections. JACC Cardiovasc Imaging 2018; 11:1679-1691. [DOI: 10.1016/j.jcmg.2018.08.026] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/25/2018] [Accepted: 08/01/2018] [Indexed: 12/19/2022]
|
14
|
99mTc-HMPAO-labeled leukocyte SPECT/CT and transthoracic echocardiography diagnostic value in infective endocarditis. Int J Cardiovasc Imaging 2018; 35:749-758. [PMID: 30382475 PMCID: PMC6482119 DOI: 10.1007/s10554-018-1487-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/25/2018] [Indexed: 12/20/2022]
Abstract
Infective endocarditis (IE) is a life-threatening disease, establishing a diagnosis is often challenging. The aim of this prospective study was to evaluate and compare the diagnostic performance of the combined use of single photon emission tomography and computed tomography with technetium99m-hexamethylpropyleneamineoxime—labeled leukocytes (99mTc-HMPAO-SPECT/CT) with transthoracic echocardiography (TTE) in patients with suspected IE. We enrolled 40 consecutive patients (12 females, 28 males, mean age: 58.6 ± 18) with suspected IE in the years 2015–2016. All patients underwent clinical evaluation, TTE and 99mTc-HMPAO-SPECT/CT for the assessment of lesions typical for IE. Scans were evaluated for the presence and location of increased radioactivity foci, corresponding to the accumulation of radiolabeled leukocytes in inflammatory lesions. After 6 months, the patients were re-evaluated clinically and with TTE. Final IE diagnosis was established in 14 (35%) patients. Lesions typical for IE were shown in 28 (70%) TTEs and 16 (40%) 99mTc-HMPAO-SPECT/CTs. The latter tests were characterized by 90% accuracy, 93% sensitivity, 88% specificity, 96% negative predictive value (NPV), 81% positive predictive value (PPV). TTE demonstrated 60% accuracy, 93% sensitivity, 42% specificity, 92% NPV, and 46% PPV. 99mTc-HMPAO-SPECT/CT was characterized by a lower number of false-positive results compared to TTE (3 vs. 15). In patients with suspected IE, 99mTc-HMPAO-SPECT/CT yields a smaller number of false-positive results, significantly higher diagnostic accuracy, specificity and PPV than TTE. It helps to differentiate IE infectious and sterile echocardiographic lesions and reduces by 27% the number of misdiagnosed IE classified in the ‘possible IE’ category by modified Duke Criteria.
Collapse
|
15
|
|
16
|
Sollini M, Berchiolli R, Delgado Bolton RC, Rossi A, Kirienko M, Boni R, Lazzeri E, Slart R, Erba PA. The "3M" Approach to Cardiovascular Infections: Multimodality, Multitracers, and Multidisciplinary. Semin Nucl Med 2018; 48:199-224. [PMID: 29626939 DOI: 10.1053/j.semnuclmed.2017.12.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Cardiovascular infections are associated with high morbidity and mortality. Early diagnosis is crucial for adequate patient management, as early treatment improves the prognosis. The diagnosis cannot be made on the basis of a single symptom, sign, or diagnostic test. Rather, the diagnosis requires a multidisciplinary discussion in addition to the integration of clinical signs, microbiology data, and imaging data. The application of multimodality imaging, including molecular imaging techniques, has improved the sensitivity to detect infections involving heart valves and vessels and implanted cardiovascular devices while also allowing for early detection of septic emboli and metastatic infections before these become clinically apparent. In this review, we describe data supporting the use of a Multimodality, Multitracer, and Multidisciplinary approach (the 3M approach) to cardiovascular infections. In particular, the role of white blood cell SPECT/CT and [18F]FDG PET/CT in most prevalent and clinically relevant cardiovascular infections will be discussed. In addition, the needs of advanced hybrid equipment, dedicated imaging acquisition protocols, specific expertise for image reading, and interpretation in this field are discussed, emphasizing the need for a specific reference framework within a Cardiovascular Multidisciplinary Team Approach to select the best test or combination of tests for each specific clinical situation.
Collapse
Affiliation(s)
- Martina Sollini
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (Milan), Italy
| | - Raffaella Berchiolli
- Vascular Surgery Unit Department of Translational Research and Advanced Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Roberto C Delgado Bolton
- Department of Diagnostic Imaging and Nuclear Medicine, University Hospital San Pedro and Centre for Biomedical Research of La Rioja (CIBIR), Logronño, La Rioja, Spain
| | - Alexia Rossi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (Milan), Italy
| | - Margarita Kirienko
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele (Milan), Italy
| | - Roberto Boni
- Nuclear Medicine Unit, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Elena Lazzeri
- Regional Center of Nuclear Medicine, Department of Translational Research and Advanced Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Riemer Slart
- University Medical Center Groningen, Medical Imaging Center, University of Groningen, Groningen, The Netherlands; Faculty of Science and Technology, Biomedical Photonic Imaging, University of Twente, Enschede, The Netherlands
| | - Paola Anna Erba
- Regional Center of Nuclear Medicine, Department of Translational Research and Advanced Technologies in Medicine, University of Pisa, Pisa, Italy; University Medical Center Groningen, Medical Imaging Center, University of Groningen, Groningen, The Netherlands.
| |
Collapse
|
17
|
Sohns JM, Bavendiek U, Ross TL, Bengel FM. Targeting Cardiovascular Implant Infection: Multimodality and Molecular Imaging. Circ Cardiovasc Imaging 2017; 10:CIRCIMAGING.117.005376. [PMID: 29222120 DOI: 10.1161/circimaging.117.005376] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Owing to their success in clinical practice, the prevalence of cardiovascular implants is continuously increasing. Implant infection is a relevant complication but remains a diagnostic challenge because echocardiography as a first-line test may be limited. Accordingly, a multimodality approach is increasingly used for diagnostic workup and supported by recent guidelines. As reviewed here, computed tomography and nuclear imaging provide incremental diagnostic value and may be combined in a single hybrid imaging session using positron emission tomography/computed tomography or single photon emission computed tomography/computed tomography. Molecular or cellular imaging helps to overcome the limitations of morphological imaging in implants. Larger-scale clinical studies, earlier application in the time course of diagnosis, monitoring of therapy success, technical advances, and novel radiopharmaceuticals will all contribute to sustained growth of advanced infection-targeted imaging in cardiovascular medicine.
Collapse
Affiliation(s)
- Jan M Sohns
- From the Department of Nuclear Medicine (J.M.S., T.L.R., F.M.B.) and Department of Cardiology and Angiology (U.B.), Hanover Medical School, Germany
| | - Udo Bavendiek
- From the Department of Nuclear Medicine (J.M.S., T.L.R., F.M.B.) and Department of Cardiology and Angiology (U.B.), Hanover Medical School, Germany
| | - Tobias L Ross
- From the Department of Nuclear Medicine (J.M.S., T.L.R., F.M.B.) and Department of Cardiology and Angiology (U.B.), Hanover Medical School, Germany
| | - Frank M Bengel
- From the Department of Nuclear Medicine (J.M.S., T.L.R., F.M.B.) and Department of Cardiology and Angiology (U.B.), Hanover Medical School, Germany.
| |
Collapse
|