[Study on the application of value of digital medical technology in the operation on primary liver cancer].
OBJECTIVE
To study the clinical application of digital medical in the operation on primary liver cancer.


METHODS
The patients (n=11) with primary hepatic carcinoma treated between February and July 2008, including 9 cases of hepatocellular carcinoma, 2 cases of cholangiocellular carcinoma, were scanned using 64 slices helicon computerized tomography (CT) and the datasets was collected. Segment and three-dimensional (3D) reconstruction of the CT image was carried out by the medical image processing system which was developed. And the 3D moulds were imported to the FreeForm Modeling System for smoothing. Then the hepatectomy in treatment of hepatoma and implanting of catheter were simulated with the force-feedback equipment (PHANToM). Finally, 3D models and results of simulation surgery were used for choosing mode of operation and comparing with the findings during the operation.


RESULTS
The reconstructed models were true to life, and their spatial disposition and correlation were shown clearly; Blood supply of primary liver cancer could be seen easily. In the simulation surgery system, the process of virtual partial hepatectomy and implanting of catheter using simulation scalpel and catheter on 3D moulds with PHANToM was consistent with the clinical course of surgery. Life-like could be felt and power feeling can be touched during simulation operation.


CONCLUSIONS
Digital medical benefited knowing the relationship between primary liver cancer and the intrahepatic pipe. It gave an advantage to complete primary liver cancer resection with more liver volume remained. It can improve the surgical effect and decrease the surgical risk and reduce the complication through demonstrating visualized operation before surgery.
Fang
Chi-hua
CH
Department of Hepatobiliary Surgery, Zhujiang Hospital Affiliated to Southern Medical University, Guangzhou 510282, China. fangch_dr@126.com
Lu
Chao-min
CM
Huang
Yan-peng
YP
Li
Xiao-feng
XF
Fan
Ying-fang
YF
Yang
Jian
J
Xiang
Nan
N
Pan
Jia-hui
JH
D000328:Adult; D000368:Aged; D003198:Computer Simulation; D005260:Female; D005500:Follow-Up Studies; D006498:Hepatectomy / Q000379:methods; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008099:Liver / Q000000981:diagnostic imaging / Q000601:surgery; D008113:Liver Neoplasms / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D008953:Models, Anatomic; D014057:Tomography, X-Ray Computed; D014584:User-Computer Interface