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Abstract #2836

Anatomic Evaluation of Living Liver Donors Using Dual-Contrast MRI and MRCP: Preliminary Experience

Reve Chahine1, Mishal Mendiratta-Lala1, Neehar Parikh2, Christopher Sonnenday3, Seth Waits 3, Matthew Davenport 1, Hero Hussain1, William Weadock1, Joel Morehouse1, Kimberly Ali1, Shaun Esch1, and Anum Aslam1
1Radiology, University of Michigan, Ann Arbor, MI, United States, 2Gastroenterology, internal medicine, transplant hepatology, University of Michigan, Ann Arbor, MI, United States, 3Surgery, University of Michigan, Ann Arbor, MI, United States

Synopsis

Keywords: Liver, Transplantation, Liver, Noval contrast mechanisms

Motivation: Liver donor evaluation requires high-quality imaging to evaluate vascular and biliary anatomy, and is traditionally performed using multiple modalities,which can be challenging for both patients and physicians.

Goal(s): Explore the use of dual-contrast agent MRCP to better define donor anatomy as an alternative to the combined use of CTA and single-contrast MRCP.

Approach: Dual-contrast MRCP was performed using gadobenate dimeglumine for dynamic arterial-phase imaging, followed by gadoxetate disodium for biliary imaging.

Results: From November 2022 to October 2024, 52 potential donors were scanned, 7 underwent partial hepatectomy, only one of which required additional CTA to verify complex arterial anatomy. None had postoperative complications.

Impact: Dual-contrast agent MRI and MRCP can be used as a one-stop shop for high-quality arterial and biliary imaging of living liver donors, reducing radiation exposure, cost and time constraints.

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