Rozenshtein A, Boxt L M
Department of Radiology, St. Luke's/Roosevelt Hospital Center, New York, NY, USA.
J Thorac Imaging. 2000 Oct;15(4):252-64. doi: 10.1097/00005382-200010000-00005.
Although computed tomographic (CT) and magnetic resonance (MR) evaluation of patients with valvular heart disease is almost never performed as a first line of diagnostic intervention, their performance does provide important morphologic and physiologic information concerning the etiology and the current status of the valvular dysfunction. Evaluation of chamber and great artery size as well as ventricular wall thickness provide the basis for diagnosing and analyzing severity of valvular heart disease. Furthermore, additional findings, including calcification and evidence of interstitial pulmonary edema, increase diagnostic sensitivity and confidence in diagnosis. MR examination has the advantage over CT of providing direct demonstration of the signal void jets of dysfunctional valves, as well as a means of quantitating regional and global ventricular function and severity of valvular pressure gradients.
尽管对于心脏瓣膜病患者，计算机断层扫描（CT）和磁共振成像（MR）几乎从不作为一线诊断手段进行检查，但它们确实能提供有关瓣膜功能障碍的病因及当前状态的重要形态学和生理学信息。评估心房、大动脉大小以及心室壁厚度可为诊断和分析心脏瓣膜病的严重程度提供依据。此外，包括钙化和间质性肺水肿迹象在内的其他发现，可提高诊断敏感性和诊断信心。与CT相比，MR检查的优势在于能够直接显示功能异常瓣膜的信号缺失血流束，还能定量评估局部和整体心室功能以及瓣膜压力阶差的严重程度。
