title: Evaluation of CT during arterial portography for preoperative diagnosis of intrahepatic cholangiocarcinoma.
abstract: OBJECTIVE
  To evaluate computed tomography during arterial portography for preoperative evaluation in patients with intrahepatic cholangiocarcinoma.
  
  
  METHODS
  Computed tomography during arterial portography was performed in 11 intrahepatic cholangiocarcinoma patients undergoing hepatectomy. Segmental perfusion defect, sensitivity of the main tumor, and sensitivity of intrahepatic metastasis on computed tomography during arterial portography were retrospectively evaluated.
  
  
  RESULTS
  In 9 of 11 patients (81.8%), a segmental perfusion defect was seen. The sensitivities for detecting the main tumor and intrahepatic metastasis were 81.8% and 20%, respectively. In 2 patients, the main tumors existed in segmental perfusion defects and thus were not depicted. In 4 false-negative cases, intrahepatic metastatic lesions existed in the segments that were the counterparts of segmental perfusion defects on computed tomography during arterial portography.
  
  
  CONCLUSIONS
  The sensitivity of computed tomography during arterial portography for diagnosing intrahepatic cholangiocarcinoma and its intrahepatic metastasis was low due to segmental perfusion defect. It is necessary for intrahepatic cholangiocarcinoma to be subjected to systematic segmentectomy including all areas corresponding to the segmental perfusion defect.
authors.affiliation: Department of Academic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan. f-miura@med.teikyo-u.ac.jp
authors.forename: Fumihiko
authors.initials: F
authors.lastname: Miura
authors.forename: Shinichi
authors.initials: S
authors.lastname: Okazumi
authors.forename: Wataru
authors.initials: W
authors.lastname: Takayama
authors.forename: Takehide
authors.initials: T
authors.lastname: Asano
authors.forename: Harufumi
authors.initials: H
authors.lastname: Makino
authors.forename: Kiyohiko
authors.initials: K
authors.lastname: Shuto
authors.forename: Takenori
authors.initials: T
authors.lastname: Ochiai
authors.forename: Tadahiro
authors.initials: T
authors.lastname: Takada
authors.forename: Hideki
authors.initials: H
authors.lastname: Yasuda
authors.forename: Ikuo
authors.initials: I
authors.lastname: Nagashima
authors.forename: Hodaka
authors.initials: H
authors.lastname: Amano
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yoshida
mesh_terms: D000328:Adult; D000368:Aged; D001650:Bile Duct Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D001653:Bile Ducts, Intrahepatic / Q000000981:diagnostic imaging*; D018281:Cholangiocarcinoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D003287:Contrast Media; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D008099:Liver / Q000098:blood supply* / Q000473:pathology; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D011169:Portal Vein / Q000000981:diagnostic imaging / Q000473:pathology; D011172:Portography; D011300:Preoperative Care; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D036542:Tomography, Spiral Computed
chemical_list: D003287:Contrast Media