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Abstract #4755

Late gadolinium enhancement by cardiovascular magnetic resonance, combined with right ventricle ejection fraction, for assessing the severity and predicting the prognosis of chronic thromboembolic pulmonary hypertension

Ming-xi Liu1, Juan-ni Gong2, Xiao-juan Guo 1, Zhan-hong Ma3, Tao Jiang3, Jing An4, Lu Liang1, Yuan-hua Yang2, and Tu-guang Kuang2

1Radiology, Beijing Chaoyang Hospital, Beijing, China, 2Respiratory, Beijing Chaoyang Hospital, Beijing, China, 3Beijing Chaoyang Hospital, Beijing, China, 4Siemens Healthcare, Beijing, China

The aim of this study was to assess the severity and predict the prognosis of chronic thromboembolic pulmonary hypertension (CTEPH) using cardiovascular magnetic resonance with late gadolinium enhancement (LGE) combined with the right ventricle ejection fraction. Based on right heart catheterization, the percentages of the myocardial fibrosis volume (pFV＞7.00%) and right ventricle ejection fraction (RVEF＜34.34%) cut-off values were determined to assess the severity and predict the prognosis of 30 patients with CTEPH. The pFV and LGE are complementary to the RVEF for assessing the severity of the condition and can be a strong prognostic factor in patients with CTEPH.

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Abstract