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Abstract #2704

Clinical Impact of Left ventricular Eccentricity Index Using Cardiac Cine MRI for Assessment of Right Ventricular Hemodynamics in Adult Congenital Heart Disease

Yuzo Yamasaki 1 , Michinobu Nagao 2 , Masato Yonezawa 1 , Satoshi Kawanami 2 , Takeshi Kamitani 1 , Torahiko Yamanouchi 1 , Kenichiro Yamamura 3 , Ichiro Sakamoto 4 , Hidetake Yabuuchi 5 , and Hiroshi Honda 1

1 Clinical Radiology, Kyushu University, Fukuoka, Fukuoka, Japan, 2 Molecular Imaging & Diagnosis, Kyushu University, Fukuoka, Fukuoka, Japan, 3 Pediatrics, Kyushu University, Fukuoka, Fukuoka, Japan, 4 Cardiovascular Medicine, Kyushu University, Fukuoka, Fukuoka, Japan, 5 Health Sciences, Kyushu University, Fukuoka, Fukuoka, Japan

In this study, we clarified the relative value of left ventricular eccentricity index (EI) with regards to right ventricular (RV) volumetric indices, late gadolinium enhancement (LGE), and pressure indices in patients with congenital heart disease (CHD). A negative correlation between diastolic EI and RV ejection fraction (EF), and a strong correlation between mean pulmonary artery pressure (PAP) and systolic EI was seen. Both systolic and diastolic EIs were significantly higher in patients with LGE compared to without LGE. EI is a simple and valuable parameter to predict RV hemodynamics and myocardial fibrosis in CHD.

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