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Abstract #3154

Global circumferential strain derived from feature tracking imaging can detect early subclinical myocardial disorders in patients with heart failure preserved ejection fraction: Comparison with tagged cine magnetic resonance imaging

Yoshiaki Morita1, Naoaki Yamada1, Makoto Amaki2, Yoshiaki Watanabe1, Tatsuya Nishii1, Atsushi Kono1, and Tetsuya Fukuda1

1Department of Radiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan, 2Division of Cardiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan

The heart failure preserved ejection fraction (HFpEF) accounts for 40–50% of all causes of heart failure. For HFpEF, identification of strain disturbances where systolic function is seemingly preserved is a decisive step toward revealing hidden heart damage. Recently, the novel technique of feature tracking imaging (FTI) was introduced for myocardial strain measurement directly from conventional cine images. We demonstrated that FTI allows for detailed strain assessment with acceptable correlation with the tagging method. In particular, global circumferential strain, which cannot be detected by analysis using cine images, may possibly serve as a sensitive and early marker of cardiac dysfunction.

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