Journal of hepato-biliary-pancreatic sciences · 2024
Assessment of the biliary branching pattern of the caudate lobe in perihilar cholangiocarcinoma using ENBD-CT cholangiography.
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Akita Masayuki, Yanagimoto Hiroaki, Tsugawa Daisuke, Sofue Keitaro, Gon Hidetoshi, Komatsu Shohei, Toyama Hirochika, Kido Masahiro, Ajiki Tetsuo, Fukumoto Takumi
Аннотация
BACKGROUND: Preoperative recognition of the anatomy of caudate biliary branches is important for the safe and complete resection of perihilar cholangiocarcinoma (PHC). In the present study, we identified these branches using an endoscopic nasobiliary drainage tube (ENBD).
METHODS: Between January 2012 and October 2022, 89 patients with suspected PHC underwent computed tomographic (CT) cholangiography through ENBD and caudate biliary branching patterns were examined. Multidetector raw CT (MDCT) scans on 85 patients with PHC without biliary drainage were also investigated. The caudate biliary branches detected by each modality were evaluated.
RESULTS: ENBD-CT cholangiography detected 206 caudate branches (2.44 branches/patient), while MDCT identified 62 branches (0.78 branches/patient). ENBD-CT cholangiography showed that 89 caudate branches drained into the left hepatic duct (LHD), 87 into the posterior hepatic duct (Bpost), and 30 into the right hepatic duct. LHD and Bpost were the common roots of the caudate branches. Some branches (20%) joined the contralateral hepatic duct across the left-right border, but not the anterior hepatic duct or infraportal-type Bpost.
CONCLUSIONS: ENBD-CT cholangiography clearly showed the caudate biliary branches in patients with PHC after biliary drainage.
METHODS: Between January 2012 and October 2022, 89 patients with suspected PHC underwent computed tomographic (CT) cholangiography through ENBD and caudate biliary branching patterns were examined. Multidetector raw CT (MDCT) scans on 85 patients with PHC without biliary drainage were also investigated. The caudate biliary branches detected by each modality were evaluated.
RESULTS: ENBD-CT cholangiography detected 206 caudate branches (2.44 branches/patient), while MDCT identified 62 branches (0.78 branches/patient). ENBD-CT cholangiography showed that 89 caudate branches drained into the left hepatic duct (LHD), 87 into the posterior hepatic duct (Bpost), and 30 into the right hepatic duct. LHD and Bpost were the common roots of the caudate branches. Some branches (20%) joined the contralateral hepatic duct across the left-right border, but not the anterior hepatic duct or infraportal-type Bpost.
CONCLUSIONS: ENBD-CT cholangiography clearly showed the caudate biliary branches in patients with PHC after biliary drainage.