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Published in: European Radiology 7/2011

Open Access 01-07-2011 | Cardiac

Prosthetic heart valve assessment with multidetector-row CT: imaging characteristics of 91 valves in 83 patients

Authors: Jesse Habets, Petr Symersky, Lex A. van Herwerden, Bas A. J. M. de Mol, Anje M. Spijkerboer, Willem P. Th. M. Mali, Ricardo P. J. Budde

Published in: European Radiology | Issue 7/2011

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Abstract

Objectives

Multidetector CT (MDCT) has shown potential for prosthetic heart valve (PHV) assessment. We assessed the image quality of different PHV types to determine which valves are suitable for MDCT evaluation.

Methods

All ECG-gated CTs performed in our institutions since 2003 were reviewed for the presence of PHVs. After reconstruction in 3 specific PHV planes, image quality of the supravalvular, perivalvular, subvalvular and valvular regions was scored on a four-point scale (1 = non-diagnostic, 2 = moderate, 3 = good and 4 = excellent) by two independent observers.

Results

Eighty-four CT examinations (66 cardiac, 18 limited-dose aortic protocols) of 83 patients with a total of 91 PHVs in the aortic (n = 71), mitral (n = 17), pulmonary (n = 1) and tricuspid (n = 2) position were included. CT was performed on a 16-slice (n = 4), 64-slice (n = 28) or 256-slice (n = 52) MDCT system. Median image quality scores for the supra-, peri- and subvalvular regions and valvular detail were (3.5, 3.3, 3.5 and 3.5, respectively) for bileaflet PHV; (3.0, 3.0, 3.5 and 3.0, respectively) for Medtronic Hall PHV; (1.0, 1.0, 1.0 and 1.0, respectively) for Björk-Shiley and Sorin monoleaflet PHV and (3.5, 3.5, 4.0 and 2.0 respectively) for biological PHV.

Conclusion

Currently implanted PHVs have good image quality on MDCT and are suitable for MDCT evaluation.
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Metadata
Title
Prosthetic heart valve assessment with multidetector-row CT: imaging characteristics of 91 valves in 83 patients
Authors
Jesse Habets
Petr Symersky
Lex A. van Herwerden
Bas A. J. M. de Mol
Anje M. Spijkerboer
Willem P. Th. M. Mali
Ricardo P. J. Budde
Publication date
01-07-2011
Publisher
Springer-Verlag
Published in
European Radiology / Issue 7/2011
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-011-2068-8

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