目的　利用计算机三维重建技术构建前臂数字化模型，探讨前臂动脉穿支特点，虚拟仿真临床个性化皮瓣设计。  方法　选用新鲜男尸体无器质性损伤前臂标本4只，常温下灌注显影剂，经CT扫描后，将数据导入医学图像处理软件Mimics13.1中,分别对骨骼、血管及软组织进行三维构建。测量前臂穿支血管数目、蒂长、管径，距尺、桡骨茎突距离，为穿支皮瓣切取提供依据。根据穿支血管支配区域，对图像进行多次分割，构建数字化穿支皮瓣。  结果　数字化前臂三维构建的图像仿真高，可立体显示前臂各穿支血管及其穿支皮瓣。桡动脉、尺动脉、骨间后动脉穿支血管数是12～17、10～15、5～11支，与实体解剖学数据基本一致。  结论　通过构建数字化前臂模型，测量数据表明各标本动脉起源、行程及其穿支较恒定，可根据尺桡动脉及骨间后动脉穿支血管的分布情况，设计皮瓣的范围，对临床穿支皮瓣的切取具有较重要的意义。

Objective　To provide a three-dimensional (3D) model that reveals detailed architecture of the perforators in the forearm that enables secure elevation of the personal perforator flap for clinic.　Methods Four adult male fresh forearms underwent lead oxide-latex injection. Spiral computed tomographic scanning was then performed and three-dimensional reconstructions were finished using Mimics 13.1. Specimens were then dissected by layers to document the individual perforators. We had accurately measured the number, length, diameter and distance from the ulnar and radial styloid process of perforators by way of providing evidence in support of flaps. Based on perforator region, we had got digital perforator flaps by segmentation of images.    Results    3D reconstructed visualization images could perfectly display the arteries, their perforator and perforator flaps in forearm. The number of radial, ulnar, and posterior interosseous artery perforators were 12～17, 10～15, 5～11 respectively.　Conclusions　As result of origin, course and branches of perforator flaps were constant by way of the study of reconstructed 3D images and measurement data. According to the distribution of perforating posterior interosseous artery, radial and ulnar arteries, we had designed the area of perforator flap. The study could guide operative design and operative procedure.