title: Preoperative evaluation of the hepatic vascular anatomy in living liver donors: comparison of CT angiography and MR angiography.
abstract: OBJECTIVE
  To compare the diagnostic performance of CT angiography (CTA) and MR angiography (MRA) for preoperative hepatic vascular evaluation in living liver donors.
  
  
  METHODS
  Twenty-eight living donor candidates underwent preoperative CTA and MRA. Two blinded radiologists evaluated the anatomic types of the hepatic artery (HA) and portal vein (PV), and the number of aberrant hepatic veins (HVs) on both CTA and MRA, independently. Four grades of confidence levels were used to indicate the clarity of depiction of the HA and PV. Surgical findings were used as a standard of reference.
  
  
  RESULTS
  For determining the anatomic types of the HA and PV, and the number of aberrant HVs, CTA and MRA did not significantly differ in terms of accuracy ([89%, 96%, and 68% on CTA] vs. [86%, 93%, and 68% on MRA] for reader 1, P>0.05; and [93%, 100%, and 86% on CTA] vs. [89%, 93%, and 79% on MRA] for reader 2, P>0.05). Confidence for the depiction of major branches of HA and PV did not differ between CTA and MRA, except for a better depiction of the left HA (LHA) on CTA (P<0.05)
  
  
  CONCLUSIONS
  In living donor candidates, both CTA and MRA can provide a complete evaluation of the hepatic vascular anatomy.
authors.affiliation: Department of Radiology, Institute of Radiation Medicine, Seoul National University Hospital, Seoul, 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: Young Jun
authors.initials: YJ
authors.lastname: Kim
authors.forename: Kyung-Sook
authors.initials: KS
authors.lastname: Shin
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; D005260:Female; D006499:Hepatic Artery / Q000033:anatomy & histology* / Q000000981:diagnostic imaging* / Q000637:transplantation; D006801:Humans; D016031:Liver Transplantation; D019520:Living Donors; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011172:Portography / Q000379:methods*; D011300:Preoperative Care / Q000379:methods; D011379:Prognosis; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*; D016896:Treatment Outcome