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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