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- Title
Prosthetic heart valve assessment with multidetector-row CT: imaging characteristics of 91 valves in 83 patients.
- Authors
Habets J; Symersky P; van Herwerden LA; de Mol BA; Spijkerboer AM; Mali WP; Budde RP; Habets, Jesse; Symersky, Petr; van Herwerden, Lex A; de Mol, Bas A J M; Spijkerboer, Anje M; Mali, Willem P Th M; Budde, Ricardo P J
- Abstract
<bold>Objectives: </bold>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.<bold>Methods: </bold>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.<bold>Results: </bold>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.<bold>Conclusion: </bold>Currently implanted PHVs have good image quality on MDCT and are suitable for MDCT evaluation.
- Publication
European Radiology, 2011, Vol 21, Issue 7, p1390
- ISSN
0938-7994
- Publication type
journal article
- DOI
10.1007/s00330-011-2068-8