3D打印在肝脏外科应用的研究进展

Application of 3D printing in liver surgery

简述3D打印技术的基本方法和原理及其在医学应用中的发展,主要概述3D打印技术在肝脏外科中的应用,如何应用于术前规划、术中手术和术后评估。观察脉管结构的空间位置、界定肝切除术的切除面、辨认和处理肝切除术面内脉管以及关键部位解剖定位,评估肝体积、脉管直径大小。3D打印模型可对肝静脉和门静脉、胆管等脉管进行空间精确定位,准确反应脉管正常与变异,更准确反应肝脏体积,准确反应脉管直径大小等信息,准确界定肝切除术面,并有助于辨认和处理肝切除面的内部脉管,有助于手术操作的顺利完成,可减少手术时间,改善预后。

The basic approaches and principles of three-dimensional （3D） printing technology and its medical applications were briefly described in this paper. And its applications in liver surgery, such as 3D-printed liver model in preoperative planning, operation and postoperative assessment, were introduced in details. The 3D-printed liver model could determine the spatial location of vascular structure, define the hepatectomy plane, identify and process the vessels on hepatectomy plane, and obtain the anatomical locations of critical parts. Some indexes, such as liver volume, and vascular diameter, were evaluated. 3D-printed liver model can obtain the accurate spatial locations of hepatic veins, portal vein and bile duct, and accurately reflect the normal and variant conditions of vessel, the liver volume, the vascular diameter and so on. 3D-printed liver model will accurately define the hepatectomy plane to identify and process vessels on hepatectomy plane, which can reduce the operative time, improve the prognosis and ensure that the operation can be smoothly accomplished. 3D-printed liver physical model was applied by CT.