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Abstract #3155

The utility of fetal MRI using real-time cine imaging for the functional assessment of congenital cardiovascular abnormality

Yoshiaki Morita1, Mitsuhiro Tsuritani2, Naoaki Yamada1, Yoshiaki Watanabe1, Tatsuya Nishii1, Atsushi Kono1, Jun Yoshimatsu2, and Tetsuya Fukuda1

1Department of Radiology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan, 2Department of Perinatology and Gynecology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan

Volumetric analysis of the fetal heart by ultrasound (US) in congenital heart disease is often difficult due to its complex anatomy and US-specific artifacts. We implemented the real-time cine sequence without ECG triggering and the post-processing technique (PhyZiodynamics), which enabled noise reduction and interpolation based on motion coherence. Fetal MRI using real-time cine imaging allowed for detailed functional assessment in both ventricles and showed acceptable levels of correlation with both the prenatal and postnatal US findings, suggesting that this technique is a promising diagnostic tool for functional assessment of congenital cardiovascular abnormalities.

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