We evaluated the changes in the bile flow dynamics in patients with cholelithiasis using cine-dynamic MRCP with a spatially selective IR pulse. The frequency and mean secretion grade of the antegrade bile flow were significantly increased in the gallstone group than in the non-gallstone group, while no significant differences in the frequency and mean secretion grade of the reverse bile flow were found between the two groups. Cine-dynamic MRCP with a spatially selective IR pulse can visualize the changes in the bile flow dynamics in patients with gallstones noninvasively.
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