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

被引:43
作者
Habets, Jesse [1 ]
Symersky, Petr [3 ,5 ]
van Herwerden, Lex A. [2 ]
de Mol, Bas A. J. M. [5 ]
Spijkerboer, Anje M. [4 ]
Mali, Willem P. Th. M. [1 ]
Budde, Ricardo P. J. [1 ]
机构
[1] UMC Utrecht, Dept Radiol, NL-3508 GA Utrecht, Netherlands
[2] Univ Med Ctr Utrecht, Dept Cardiothorac Surg, Utrecht, Netherlands
[3] Onze Lieve Vrouw Hosp, Dept Cardiothorac Surg, Amsterdam, Netherlands
[4] Acad Med Ctr Amsterdam, Dept Radiol, Amsterdam, Netherlands
[5] Acad Med Ctr Amsterdam, Dept Cardiothorac Surg, Amsterdam, Netherlands
关键词
Prosthetic heart valve; Image quality; Heart valve; Cardiac imaging; Computed tomography; COMPUTED-TOMOGRAPHY; ECHOCARDIOGRAPHY;
D O I
10.1007/s00330-011-2068-8
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
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. 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. 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 Bjork-Shiley and Sorin monoleaflet PHV and (3.5, 3.5, 4.0 and 2.0 respectively) for biological PHV. Currently implanted PHVs have good image quality on MDCT and are suitable for MDCT evaluation.
引用
收藏
页码:1390 / 1396
页数:7
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