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Aortic stenosis: evaluation with multidetector CT angiography and MR imaging
Authors:Eun Ju Chun  Sang Il Choi  Cheong Lim  Kye-Hyun Park  Hyuk-Jae Chang  Dong-Ju Choi  Dong Hun Kim  Whal Lee  Jae Hyung Park
Affiliation:Department of Radiology, Seoul National University Bundang Hospital, Gyeonggi-do, Korea.
Abstract:
Aortic valvular stenosis (AS) is the most common valve disease which results in the need for a valve replacement. Although a Doppler echocardiography is the current reference imaging method, the multidetector computerized tomograpghy (MDCT) and magnetic resonance imaging (MRI) have recently emerged as a promising method for noninvasive valve imaging. In this study, we briefly describe the usefulness and comparative merits of the MDCT and MRI for the evaluation of AS in terms of valvular morphology (as the causes of AS), quantification of aortic valve area, pressure gradient of flow (for assessment severity of AS), and the evaluation of the ascending aorta and cardiac function (as the secondary effects of AS). The familiarity with the MDCT and MRI features of AS is considered to be helpful for the accurate diagnosis and proper management of patients with a poor acoustic window.
Keywords:Angiography, CT   Cardiac imaging   Magnetic resonance (MR)   Multidetector CT
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