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Abstract #3945

An efficient algorithm for volumetric measurement of left ventricle using real time cines

Yin Wu 1,2 , Yinzhu Gao 1,2 , Ke Jiang 1,2 , Yucheng Chen 3 , and Yiu-Cho Chung 1,2

1 Paul C. Lauterbur Research Centre for Biomedical Imaging, Shenzhen Key Laboratory for MRI, Shenzhen Institutes of Advanced Technology, Shenzhen, Guangdong, China, 2 Key Laboratory of Health Informatics, Chinese Academy of Sciences, Shenzhen, Guangdong, China, 3 Cardiology Department, West China Hospital, Sichuan University, Chengdu, Sichuan, China

Real-time free-breathing cine imaging is highly desirable in cardiac patients for LV function quantification. However, volumetric measurement is prone to be erroneous due to respiratory motion. In this study, we proposed an efficient approach to identify ED and ES phases at end-expiration semi-automatically. Twelve healthy volunteers were scanned using the real-time cine imaging and processed with the proposed method with the standard breath-hold cines as reference. Results showed that the measured LV function was comparable between the two imaging protocols, suggesting the proposed method to be efficient and reliable in analyzing real-time cines.

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