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Journal of Computer Assisted Tomography:
doi: 10.1097/RCT.0b013e31829002ca
Gastrointestinal Imaging

Unenhanced Magnetic Resonance Portography Using Repetitive Arterial or Vein Labeling Method at 3.0-T

Hwang, Jiyoung MD*; Kim, Young Kon MD, PhD; Lee, Won Jae MD, PhD; Choi, Dongil MD, PhD; Park, Min Jung MD, PhD; Park, Hyun Jeong MD; Hong, Seong Sook MD, PhD*; Lee, Mi Hee MD

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Abstract

Objective

The objective of this study was to determine whether unenhanced magnetic resonance (MR) angiography using repetitive arterial or vein labeling (RAVEL) is feasible to visualize effectively the intrahepatic portal vein (PV) at 3.0 T.

Methods

Forty patients underwent liver MR imaging (MRI) with unenhanced MR portography using RAVEL. Two radiologists performed a consensus review of unenhanced MR portography and portal-phase MRI with regard to anatomic type of PV, vessel conspicuity, and image quality.

Results

For determination of the anatomic type of PV, the 2 techniques were equivalent. There were tendencies toward increased conspicuity for right segmental PV and its branches with unenhanced MR portography and for left PV with conventional MRI, although significant differences were not found between MRIs (P > 0.05). Image quality for unenhanced MR portography was poor in 1, moderate in 8, and good in 31 patients.

Conclusions

Unenhanced MR portography using RAVEL at 3.0 T is feasible and provides effective visualization of intrahepatic PV.

Copyright © 2013 by Lippincott Williams & Wilkins

  

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