Detection of perfusion areas of the gallbladder vein on computed tomography during arterial portography (CTAP) - The background for dual S(4a) · S5 hepatic subsegmentectomy in advanced gallbladder carcinoma

Masanori Suzuki, Kuniharu Yamamoto, Michiaki Unno, Yu Katayose, Kojin Endo, Masaya Oikawa, Seiki Matsuno

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Background/Aims: It has been speculated that the veins of the gallbladder join the intrahepatic portal veins supplying the Couinaud's S(4a)-S5. This has been the theoretical ground for the resection of these 2 hepatic subsegments in advanced gallbladder carcinoma. However, no consensus has been reached on this concept. Methodology: The current study describes the non-neoplastic perfusion defects in connection with the gallbladder bed in 100 consecutive hepatic CTAP (computed tomographies during arterial portography). The suitability of S(4a) and S5 subsegmentectomies of the liver for advanced gall-bladder carcinoma was also investigated by examining CTAP images of the branches of the portal vein involved in the perfusion defect. Results: Two types of gallbladder venous perfusion were observed: 1) sphenoid distribution from the gallbladder bed into the P(4d) (37%), P5 (52%) and P6 (3%), and 2) perfusion into the P4 (9%) or directly into the middle hepatic vein (9%) after communicating with the hepatic hilum at the dorsal side of S4. Conclusions: These results support liver resection at S4a and S5 as the surgical approach for cases of advanced gallbladder carcinoma.

Original languageEnglish
Pages (from-to)631-635
Number of pages5
JournalHepato-Gastroenterology
Volume47
Issue number33
Publication statusPublished - 2000 Jul 11

Keywords

  • CTAP
  • Carcinoma of the gallbladder
  • Perfusion defect
  • Veins of the gallbladder

ASJC Scopus subject areas

  • Hepatology
  • Gastroenterology

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