title: Hepatic venous congestion after right-lobe living-donor liver transplantation: the added value of delayed-phase imaging on CT.
abstract: OBJECTIVE
  To describe and determine the additional value of delayed-phase imaging of hepatic venous congestion after living-donor liver transplantation.
  
  
  METHODS
  Twenty-eight patients who had surgical ligation of the middle hepatic vein (HV) in living-donor liver transplantation underwent 3-phase computed tomography scans. Two radiologists analyzed in consensus the presence and pattern of the hepatic attenuation difference and the opacification of the HV in the congested areas of the liver during each phase of the initial and follow-up computed tomography scanning. The imaging findings were correlated with the serum bilirubin level.
  
  
  RESULTS
  Opacification of the HV was observed more frequently in 22 (92%) of 24 hyperattenuating areas on delayed-phase (DP) scans than in 2 (50%) of 4 hypoattenuating areas in the congested areas of the liver. Patients with persistent hypoattenuatation in the congested areas on all phases (14%) showed significantly persistent hyperbilirubinemia after postoperative 4 weeks and showed a higher mortality rate (50%) than did the other patients with hyperattenuation on DP scans.
  
  
  CONCLUSIONS
  A hypoattenuating area of the liver during DP scans indicates severe hepatic congestion and is correlated with hyperbilirubinemia and a high mortality rate.
authors.affiliation: Department of Radiology and the Institute of Radiation Medicine, Seoul National University College of Medicine, Chongno-Gu, Seoul, Korea.
authors.forename: Eun-Ah
authors.initials: EA
authors.lastname: Park
authors.forename: Jeong Min
authors.initials: JM
authors.lastname: Lee
authors.forename: Se Hyung
authors.initials: SH
authors.lastname: Kim
authors.forename: Min Woo
authors.initials: MW
authors.lastname: Lee
authors.forename: Joon Koo
authors.initials: JK
authors.lastname: Han
authors.forename: Byung Ihn
authors.initials: BI
authors.lastname: Choi
authors.forename: Jae Young
authors.initials: JY
authors.lastname: Lee
authors.forename: Whal
authors.initials: W
authors.lastname: Lee
authors.forename: Jin Wook
authors.initials: JW
authors.lastname: Chung
authors.forename: Jae Hyung
authors.initials: JH
authors.lastname: Park
mesh_terms: D000328:Adult; D001663:Bilirubin / Q000097:blood; D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D006503:Hepatic Veins / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D007472:Iohexol / Q000031:analogs & derivatives; D008099:Liver / Q000098:blood supply / Q000000981:diagnostic imaging; D008102:Liver Circulation; D008107:Liver Diseases / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D016031:Liver Transplantation / Q000009:adverse effects*; D019520:Living Donors; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D011183:Postoperative Complications / Q000175:diagnosis; D011856:Radiographic Image Enhancement / Q000379:methods; D012189:Retrospective Studies; D036542:Tomography, Spiral Computed / Q000379:methods*
chemical_list: D003287:Contrast Media; D007472:Iohexol; C038192:iopromide; D001663:Bilirubin