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Abstract #2116

Evaluation of Turbulent Kinetic Energy Measurement for hypertrophic cardiomyopathy by Using Triple-VENC 4D Flow MRI

Kotomi Iwata1, Tetsuro Sekine1, Masaki Tachi1, Takahiro Ando1, Izumi Tanaka1, Yoichi Imori2, Junya Matsuda2, Yasuo Amano3, Makoto Obara4, Masashi Ogawa1, Hitoshi Takano2, and Shinichiro Kumita1
1Radiology, Nippon Medical School, Tokyo, Japan, 2Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan, 3Radiology, Nihon University, Tokyo, Japan, 4Philips Electronics Japan Ltd., Tokyo, Japan

The purpose of this study was threefold. First, we validated whether TKE reflects the condition of HOCM and HNCM by comparing them with volunteers. Second, we clarified the factors that increase TKE in HCM. Third, we revealed LV mass which is associated with cardiac load, resulting in a poor outcome. TKE in HOCM was significantly higher than HNCM or volunteers. Maximum velocity, maximum short of the valve orifice, SAM, and LV mass were correlated to TKE. TKE allows to noninvasively depict the flow characteristics and may provide insights into the pathophysiology associated with flow dynamics in HCM.

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