title: Sectional Localization of a Small Hepatocellular Carcinoma in the Right Hepatic Lobe by Computed Tomography: Comparison between the Conventional and Portal Vein Tracing Methods.
abstract: OBJECTIVE
  To compare the accuracy of the conventional and portal vein tracing methods in the right hepatic lobe in multidetector computed tomography (MDCT).
  
  
  METHODS
  This retrospective study included patients with hepatocellular carcinoma (HCC) lesions in the right hepatic lobe who underwent multiphasic MDCT and C-arm CT hepatic arteriography (C-arm CTHA) for chemoembolization. The accuracies of the conventional and portal vein tracing methods were evaluated using C-arm CTHA as the gold standard.
  
  
  RESULTS
  A total of 147 patients with 205 HCC nodules were included. The C-arm CTHA could identify all the tumour-feeding arteries and consequently demonstrated that 120 lesions were located in the anterior section, 78 in the posterior section, and 7 in the border zone. The accuracy rates of conventional vs. portal vein tracing methods were 71.7 % vs. 98.3 % for the anterior section lesions, 67.9 % vs. 96.2 % for the posterior section, and 28.6 % vs. 57.1 % for the border zone. The portal vein tracing method was more accurate than the conventional method (P<0.001).
  
  
  CONCLUSIONS
  The portal vein tracing method should be used for sectional localization of HCCs in the right lobe, because it predicts the location more accurately than the conventional method.
  
  
  CONCLUSIONS
  • Portal tracing method is more accurate than conventional method for tumour localization. • The conventional method is especially inaccurate in right anteroinferior or posterosuperior quadrants. • Scissurae between right anterior and posterior section may not be vertical but tilted.
authors.affiliation: Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea.|Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
authors.forename: Chun-Gao
authors.initials: CG
authors.lastname: Zhou
authors.affiliation: Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea. chungjw@snu.ac.kr.
authors.forename: Jin Wook
authors.initials: JW
authors.lastname: Chung
authors.affiliation: Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea.
authors.forename: Saebeom
authors.initials: S
authors.lastname: Hur
authors.affiliation: Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea.
authors.forename: Myungsu
authors.initials: M
authors.lastname: Lee
authors.affiliation: Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea.
authors.forename: Hyo-Cheol
authors.initials: HC
authors.lastname: Kim
authors.affiliation: Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea.
authors.forename: Hwan Jun
authors.initials: HJ
authors.lastname: Jae
authors.affiliation: Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea.
authors.forename: Yong-Hu
authors.initials: YH
authors.lastname: Yin
authors.affiliation: Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea.
authors.forename: Young Il
authors.initials: YI
authors.lastname: Kim
authors.affiliation: Department of Radiology, Dongnam Institution of Radiological & Medical Sciences, Busan, Republic of Korea.
authors.forename: Sang-Bu
authors.initials: SB
authors.lastname: Ahn
authors.affiliation: Department of Radiology, Chonbuk National University Hospital, Jeonju, Republic of Korea.
authors.forename: Baik Hwan
authors.initials: BH
authors.lastname: Cho
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000792:Angiography / Q000379:methods; D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy; D016461:Chemoembolization, Therapeutic; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000628:therapy; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000379:methods* / Q000592:standards; D011169:Portal Vein / Q000000981:diagnostic imaging* / Q000473:pathology; D012189:Retrospective Studies
keywords: Cone-beam computed tomography; Hepatocellular carcinoma; Imaging; Multidetector computed tomography; Portal vein