3D virtual surgery planning system in clinical application of precise liver resection for hepatocellular carcinoma

Abstract

Objective To evaluate the clinical application of 3D technology in treatment of precise hepatectomy.Methods The clinical data of 16 patients with hepatocellular carcinoma who underwent precise hepatectomy assisted by 3D virtual surgery planning system (IQQA-Liver) were retrospectively analyzed.3D virtual surgery planning system (IQQA-Liver) was used to rebuild in three dimensions for thin layer CT image,the lesion location and segmentation and assessment of lesions and intrahepatic duct and other information.Furthermore,the author calculated the standard liver volume,size of tumor,resection of liver volume,residual liver volume and residual liver volume percent by 3D virtual surgery planning system.Through the 3D imaging perspective,the author completed preoperative assessment and the design of individual operation plan,and compared these with the actual removal of postoperative liver volume.Results The figure of liver model established by 3D virtual surgery planning system were clear,intuitive and vivid.The residual liver volumes of all patients were accurate assessed.The hospital stay was a period ranging from 4 to 11 days (average,7 days).All cases were alive and didn't appear complications such like the liver failure,bile leakage and others.Simulated surgery for resection volume and the actual surgical resection of liver volume has obvious relevance in 16 patients and the average error rate of about 6.3％.Conclusions 3D virtual surgery planning systems could accurate simulation the operation status and guide the liver resection surgery planning. Key words: Computer assisted surgery; Imaging, three-dimensional; Hepatectomy; Carcinoma, hepatocellular