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Abstract #1518

Effect of Gd-EOB-DTPA on T1-weighted dual echo In-phase and opposed-phase MR images for focal liver lesion detection

Jin Wang 1 , Lin Luo 2 , Yunhong Shu 3 , Hong Shan 1 , and Bingjun He 1

1 The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, China, 2 The University of Hong Kong-Shenzhen Hospital, Guangdong, China, 3 Mayo Clinic, Minnesota, United States

The T1-weighted, dual gradient-echo in-phase /opposed-phase imaging sequence has become a routine part of every hepatic MR imaging protocol. It is a helpful tool to detect focal liver lesions. This sequence is conventionally performed before contrast injection. Gd-EOB-DTPA is a FDA approved liver-specific gadolinium compound. When Gd-EOB-DTPA is used, hepatic-phase imaging can be acquired ~20 minutes after the injection. To streamline the overall protocol, it is desirable to move the dual echo sequence from pre-contrast to post-contrast. The aim of this study is to compare dual-echo data pre and post contrast and evaluate its effect in detecting focal liver lesions

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