Application of hepatic image analysis system in assisting preoperative planning for liver surgery

Objective To perform preoperative planning,virtual resection,and risk assessment for patients to be treated by hepatectomy using the liver hepatic image analysis system( IQQA- Liver) and to evaluate the effect and feasibility of three- dimensional( 3D) image reconstruction in assisting liver surgery planning. Methods A retrospective analysis was performed on 32 patients who underwent 3D imaging-assisted preoperative planning from July 2012 to July 2014. The full / residual liver volume was calculated; intrahepatic duct reconstruction was performed; the scheme and extent of surgical removal were simulated. The efficacy of reconstruction and the feasibility of surgical plan were evaluated. Results Surgery was completed according to the 3D imaging- assisted preoperative plan in 29( 90. 63%) of the 32 patients. After operation,biliary fistula occurred in 1 case,pleural effusion in 3 cases,and ascites in 3 cases. All patients were discharged safely with a mean hospital stay of 13 ± 4 d. Conclusion The 3D image reconstruction of the liver contributes to individualized operation and improves the certainty of surgery though intuitive understanding of the location of the tumor and its anatomic relationship with surrounding vessels and bile ducts or virtual liver surgery.