Comparing performance of cardiac CT–derived hybrid aortic valve area and planimetry, in combination with aortic valve calciumor AVC density, for assessing low-gradient aortic stenosis.

To compare the performance of cardiac CT–derived hybrid aortic valve area (AVA) and planimetry, in combination with aortic valve calcium (AVC) or AVC density (AVCd), for assessing low-gradient aortic stenosis (LGAS).