Establishment and clinical application of individualized three-dimensional digital models of retroperitoneal space on medical CT films / 中华泌尿外科杂志

ABSTRACT

Objective To explore the feasibilities and clinical applications for sharing the medical resources and recycles by applying digital medicine technology and making the most of medical CT films from other hospitals.Methods Based on scanning data of medical CT films from other hospitals,which were in 85 cases of undergo retroperitoneal laparoscopic surgery,the 3D models were reconstructed in the computer,then were verified and navigated during operations.Meanwhile,coincidence rates were compaired between group A (slice thickness =5 mm) and group B (slice thickness ＞5 mm) in 53 cases whose renal pedicle blood vessels were exposed during the operations.Results All the 85 procedures were successfully completed.The 3D models,which could be observed freely,were consistent with intraoperative screenshots and participated in intraoperative guidance.Coincidence rates were 82.4％ (28/34) in group A and 52.6％(10/19) in group B (x2 =5.306,P =0.021).Conclusions Based on medical CT films of 5 mm slice thickness,the 3D models which are verified to have some accuration and fineness can be successfully reconstructed.The method not only can effectively avoid unnecessary repeated inspection,but also directly render in 3D form to participate in preoperative planning and intraoperative guidance.