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[Application values of computer-assisted preoperative planning of hilar cholangiocarcinoma].

OBJECTIVE
To explore the application value of computer-assisted preoperative planning of hilar cholangiocarcinoma.


METHODS
Retrospective analyses were conducted for the clinical data of 47 patients with hilar cholangiocarcinoma undergoing radical resection plus hemihepatectomy from January to December 2013. According to whether computer-assisted preoperative planning was used, they were divided two groups of computer-assisted surgical planning (CASP) and without computer-assisted surgical planning (WCASP). Then we analyzed the data including preoperative examinations, preoperative planning, intraoperative findings and postoperative complications.


RESULTS
There were 31 cases of hilar vascular invasion by tumor. Among 29 cases of CASP, left hepatic artery originated from left gastric artery (n = 6), right posterior bile duct drained into left hepatic bile duct (n = 1) and right posterior bile duct run into common hepatic bile duct (n = 2). The mean operative duration of CASP was (6.5 ± 1.3) h and the mean volume of intraoperative bleeding (672.0 ± 214.3) ml; while the mean operative duration of WCASP was (7.9 ± 2.9) h and the mean volume of intraoperative bleeding (870.0 ± 330.1) ml. By statistical analysis, the inter-group differences of mean operative duration had statistical difference (P = 0.028) and the inter-group differences of mean volume of intraoperative bleeding had statistical difference (P = 0.016). The ratio of first negative test in group CASP was higher than that of group WCASP and the inter-group differences had statistical significance (P = 0.043). But the inter-group rate of postoperative complications had no significant difference (P = 0.419).


CONCLUSIONS
The computer-assisted surgical planning system provides accurate information so that an optimal surgical protocol may be designed by surgeons. And it has great application values in preoperative surgical planning for hilar cholangiocarcinoma and enjoys wide prospects in precise liver surgery.