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Funding This study was funded by INTERREG project EurHealth-1Health (Project Number 202085).
Multimodality imaging is recommended to diagnose infective endocarditis. Value of additional imaging to echocardiography in patients selected by a previously proposed flowchart has not been evaluated.
An observational single-center study was performed. Adult patients suspected of endocarditis/device infection were prospectively and consecutively enrolled from March 2016 to August 2017. Adherence to a diagnostic imaging-in-endocarditis-flowchart was evaluated in 176 patients. Imaging techniques were compared head-to-head in 46 patients receiving echocardiography (transthoracic plus transesophageal), multi-detector computed tomography angiography (MDCTA), and 18F-fluorodeoxyglucose positron emission tomography (FDG-PET/CT).
69% of patients (121/176) adhered to the flowchart. Sensitivity of echocardiography, MDCTA, FDG-PET/CT in patients without prosthesis was 71%, 57%, 29% (86% when combined), while specificity was 100%, 75%, 100%, respectively. Sensitivity in patients with prosthesis was 75%, 75%, 83%, respectively (100% when combined), while specificity was 86% for all three modalities. Echocardiography performed best in the assessment of vegetations, morphological valve abnormalities/dehiscence, septum defects, and fistula formation. MDCTA performed best in the assessment of abscesses and ventricular assist device infection. FDG-PET/CT performed best in the assessment of cardiac device infection, extracardiac infectious foci, and alternative diagnoses.
This study demonstrates that the evaluated imaging-in-endocarditis-flowchart is applicable in daily clinical practice. Echocardiography, MDCTA, and FDG-PET/CT provide relevant complementary diagnostic information, particularly in patients with intracardiac prosthetic material.
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- Imaging infective endocarditis: Adherence to a diagnostic flowchart and direct comparison of imaging techniques
MD, PhD Anna Gomes
MD, PhD Peter Paul van Geel
MD Michiel Santing
MD, PhD Niek H. J. Prakken
BSc Mathilde L. Ruis
MD, PhD Sander van Assen
MD, PhD Riemer H. J. A. Slart
MD, PhD Bhanu Sinha
MD, PhD Andor W. J. M. Glaudemans
- Springer US
Journal of Nuclear Cardiology
Print ISSN: 1071-3581
Elektronische ISSN: 1532-6551
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