Application Of Three-dimensional Visualization Technique In The Operation Of Pancreatic Cancer

Purpose: In order to provide reliable information before operation of pancreatic cancer,we reconstructed 3D model of pancreatic tumor,including the size and location of the main pancreatic duct on the resected pancreatic surface.Methods: The data of 50 pancreatoduodenectomy for pancreatic cancer during from January 2015 to October 2017 were divided into two groups,with 3D reconstruction group(3D+ group,n=25)and without 3D reconstruction group(3Dgroup,n=25).In 3D+ group,we obtained the CT data with 1mm DICOM format and hence to reconstruct the 3D model by 3D visual system.Based on the 3D visual system,we can rotate,hyalinize and scale the 3D model,which help to develop a operation proposal.Moreover,the diameter and location of the main pancreatic duct were measure by the 6-grid method to guide surgery.The following factors were be compared between 3D+ group and 3D-group,such as average age,operation time,intraoperative blood loss,postoperative complications,length of postoperative hospital stay,and diameter and position of the main pancreatic duct.Results:There were no significant differences in the blood transfusion volume,postoperative complications,and length of postoperative hospital stay between 3D+group and 3D-group.The 3D-simulated main pancreatic duct location was consistent with its actual location in 79% of patients(19/25).The intraoperative blood loss in3D+ group is significantly less than in 3D-group(P<0.05).Conclusion:The 3D surgical simulation provided useful information to promote our understanding of the pancreatic anatomy,including details on the location of the main pancreatic duct.Furthermore,the 3D surgical simulation will help to achieve more individualized and accurate treatment,to provide realistic display means and quantitative analysis tools for the operation.