Non-contrast-enhanced MR hepatic arteriography with time-spatial labeling inversion pulses: comparison of imaging with flow-in and modified flow-out methods

摘要

Background: In non-contrast-enhanced magnetic resonance (MR) arteriography, the flow-out method using a selective tagging pulse with a long inversion time (TI) and a non-selective inversion recovery pulse with a short TI (the modified flow-out method) might further contribute to the suppression of background signal and facilitate improved visualization of the hepatic artery. However, no report has focused on the image quality of non-contrast-enhanced MR arteriography using the modified flow-out method.