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Abstract #3302

Comparison of T1ρ imaging between rapid acquisition with relaxation enhancement (RARE) and ultrashort TE (UTE) sequence of rat liver at 11.7T MRI

Qianfeng Wang1, Hong Xiao2, Xuchen Yu1, He Wang1,3, and Fuhua Yan2
1Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China, 2Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China, 3Human Phenome Institute, Fudan University, Shanghai, China, Shanghai, China

In this study, T1ρ images of 24 rat liver samples were acquired with two types of pulse sequences: RARE and UTE. The mean T1ρ value of the rat liver with RARE was significantly higher compared to UTE (p<0.001). This study shows that the quantitative UTE-R1ρ has a better correlation with LIC than RARE-R1ρ.

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