title: Visibility enhancement of common bile duct for laparoscopic cholecystectomy by vivid fiber-optic indication: a porcine experiment trial.
abstract: Bile duct injury (BDI) is the most serious iatrogenic complication during laparoscopic cholecystectomy (LC) and occurs easily in inexperienced surgeons since the position of common bile duct (CBD) and its related ductal junctions are hard to precisely identify in the hepatic anatomy during surgery. BDI can be devastating, leading to chronic morbidity, high mortality, and prolonged hospitalization. In addition, it is the most frequent injury resulting in litigation and the most likely injury associated with a successful medical malpractice claim against surgeons. This study introduces a novel method for conveniently and rapidly indicating the anatomical location of CBD during LC by the direct fiber-optic illumination of 532-nm diode-pumped solid state laser through a microstructured plastic optical fiber to avoid the wrong identification of CBD and the injury from mistakenly cutting the CBD that can lead to permanent and even life threatening consequences. Six porcine were used for preliminary intra-CBD illumination experiments via laparotomy and direct duodenal incision to insert the invented CBD illumination laser catheter with nonharmful but satisfactory visual optical density.
authors.affiliation: Institute of Biomedical Engineering, National Cheng Kung University, Tainan 701,  Taiwan ; Center for Nano Bio-detection, National Chung Cheng University, Chiayi 621,  Taiwan ; These authors contributed equally to this work.
authors.forename: Hsing-Ying
authors.initials: HY
authors.lastname: Lin
authors.forename: Chen-Han
authors.initials: CH
authors.lastname: Huang
authors.forename: Shannon
authors.initials: S
authors.lastname: Shy
authors.forename: Yu-Chung
authors.initials: YC
authors.lastname: Chang
authors.forename: Hsiang-Chen
authors.initials: HC
authors.lastname: Chui
authors.forename: Tsung-Chih
authors.initials: TC
authors.lastname: Yu
authors.forename: Chih-Han
authors.initials: CH
authors.lastname: Chang