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Abstract #4089

Non-gated Single Breath-Hold MR cholangiopancreatography (MRCP) with 3D bSSFP: Comparison with Respiratory Gated 3D FSE

Akiyoshi Yamamoto 1 , Hiroki Matoba 1 , Yuji Shintani 1 , Daiji Uchiyama 1 , Seigo Yoshida 1 , Katsumi Nakamura 1,2 , and Mitsue Miyazaki 3

1 Radiology, Tobata Kyoritsu Hospital, Kitakyusyu, Fukuoka, Japan, 2 Radiology, Hikari Central Hospital, Hikari, Yamaguchi, Japan, 3 Toshiba Medical Research Institute USA, Vernon Hills, Illinois, United States

A non-gated single 15-sec breath-hold 3D-MRCP technique using bSSFP was developed and the feasibility of the proposed method for the visualization of bile ducts was compared using respiratory gated 3D-FSE MRCP with several minutes of scan time. The single breath-hold bSSFP-MRCP technique was optimized in flip angle and the number of segmentations to obtain good contrast of bile fluid over blood signal with maintaining the 15 sec breath-holding. The proposed bSSFP-MRCP technique gave equal to FSE-MRCP in the visualization of common bile duct and intrahepatic bile duct.

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