Prospection of electromagnetic navigation for hepatic ducts exploration by choledochoscope based on a three-dimensional printing model
10.3760/cma.j.issn.1673-9752.2017.04.022
- VernacularTitle:电磁导航系统在3D打印模型胆道镜探查中的应用探索
- Author:
Rui TANG
;
Longfei MA
;
Jianping ZENG
;
Wenping ZHAO
;
Xuedong WANG
;
Liang WANG
;
Hongen LIAO
;
Jiahong DONG
- Keywords:
Obstructive jaundice;
Hepatolithiasis;
Electromagnetic navigation;
Choledochoscope;
Three-dimensional reconstruction;
Three-dimensional printing
- From:
Chinese Journal of Digestive Surgery
2017;16(4):433-436
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the feasibility of electromagnetic navigation for hepatic ducts exploration by choledochoscope based on a three-dimensional (3D) printing model.Methods The retrospective descriptive study was conducted.The clinical data of 1 patient with obstructive jaundice combined with secondary biliary tract dilation who was admitted to the Beijing Tsinghua Changgung Hospital in April 2016 were collected.Digital imaging and standardized format data of enhanced computed tomography (CT) scan were collected,3D reconstruction of liver and bile duct were done under a 3D printing model,and then a hollow model of bile duct was achieved.Choledochoscope with internal electromagnetic probe was inserted into the printed hepatic ducts.Four points of anatomical markers in left and right hepatic ducts and common hepatic duct were chosen as fiducial markers for calibration and registration.Results After registration,the scope can be tracked in main hepatic segmental bile ducts.The locations of choledochoscope matched precisely the navigation results.Conclusion Electromagnetic navigation may bring accurate tracking effectiveness for choledochoscopic examination.
