Splanchnic flow analysis in 4D flow MRI: scan-rescan reproducibility of flow and image quality

Scan-rescan reproducibility of a 4D Flow MRI acquisition that was optimized in-house for assessing the splanchnic blood flow circulation is good to excellent for flow assessment and maximum velocity in large vessels with high velocities, but not for cross-sectional area and mean velocity. Measurements in smaller vessels and vessels with lower velocities are less reproducible. Fractional flow change was not reproducible in healthy volunteers in the current study and should be assessed in a larger cohort. However, it was indicative for patients with end-stage liver disease.