title: Preoperative evaluation of hepatic arterial and portal venous anatomy using the time resolved echo-shared MR angiographic technique in living liver donors.
abstract: The purpose of this study was to determine whether MR angiography utilizing the time resolved echo-shared angiographic technique (TREAT) can provide an effective assessment of the hepatic artery (HA) and portal vein (PV) in living donor candidates. MR angiography (MRA)was performed in 27 patients (23 men and 4 women; mean age, 31 years) by using TREAT. Two blinded radiologists evaluated HA anatomy, origin of segment IV feeding artery and PV anatomy in consensus. Qualitative evaluations of MRA images were performed using the following criteria: (a) overall image quality, (b) presence of artifacts, and (c) degree of venous contamination of the arterial phase. Using intraoperative findings as a standard of reference, the accuracy for the HA anatomy, origin of segment IV feeding artery and PV anatomy on TREAT-MRA were 93% (25/27), 85% (23/27), and 96% (26/27), respectively. Overall image qualities were as follows: excellent (n=22, 81%), good (n=4, 15%), and fair (n=1, 4%). Significant artifacts or venous contamination of the arterial phase images was not noted in any patient. TREAT-MRA can provide a complete evaluation of HA and PV anatomy during preoperative evaluation of living liver donors. Furthermore, it provides a more detailed anatomy of the HA without venous contamination.
authors.affiliation: Department of Radiology, Seoul National University Hospital, 110-744, Seoul, South Korea.
authors.forename: Min Woo
authors.initials: MW
authors.lastname: Lee
authors.forename: Jeong Min
authors.initials: JM
authors.lastname: Lee
authors.forename: Jae Young
authors.initials: JY
authors.lastname: Lee
authors.forename: Se Hyung
authors.initials: SH
authors.lastname: Kim
authors.forename: Eun-Ah
authors.initials: EA
authors.lastname: Park
authors.forename: Joon Koo
authors.initials: JK
authors.lastname: Han
authors.forename: Jin-Young
authors.initials: JY
authors.lastname: Choi
authors.forename: Young Jun
authors.initials: YJ
authors.lastname: Kim
authors.forename: Kyung-Suk
authors.initials: KS
authors.lastname: Suh
authors.forename: Byung Ihn
authors.initials: BI
authors.lastname: Choi
mesh_terms: D000293:Adolescent; D000328:Adult; D003287:Contrast Media; D005260:Female; D006499:Hepatic Artery / Q000033:anatomy & histology*; D006503:Hepatic Veins / Q000033:anatomy & histology*; D006801:Humans; D008099:Liver / Q000098:blood supply* / Q000000981:diagnostic imaging*; D016031:Liver Transplantation; D019520:Living Donors; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008571:Men; D011169:Portal Vein / Q000033:anatomy & histology*; D011300:Preoperative Care; D011859:Radiography; D014930:Women
chemical_list: D003287:Contrast Media