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31.07.2018 | Original Article Open Access

Imaging infective endocarditis: Adherence to a diagnostic flowchart and direct comparison of imaging techniques

Zeitschrift:
Journal of Nuclear Cardiology
Autoren:
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
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s12350-018-1383-8) contains supplementary material, which is available to authorized users.
The authors of this article have provided a PowerPoint file, available for download at SpringerLink, which summarises the contents of the paper and is free for re-use at meetings and presentations. Search for the article DOI on SpringerLink.com
Funding This study was funded by INTERREG project EurHealth-1Health (Project Number 202085).

Abstract

Background

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.

Methods

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).

Results

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.

Conclusions

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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Zusatzmaterial
Supplementary material 1 (PDF 413 kb)
12350_2018_1383_MOESM1_ESM.pdf
Supplementary material 2 (PDF 307 kb)
12350_2018_1383_MOESM2_ESM.pdf
Supplementary material 3 (PPTX 781 kb)
12350_2018_1383_MOESM3_ESM.pptx
Literatur
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