螺旋CT三维重建技术在骨盆骨折中的应用

背景：螺旋CT三维重建技术可以提供直观的三维图像，而且可以根据需要向任何方向旋转，使医生可以在任意设定的角度观察骨盆骨折移位情况，从而得到清晰直接的印象。 目的：观察螺旋CT三维重建技术在骨盆骨折中的应用价值。 方法：选择2007-11/2009-03遵义医学院附属医院骨科收治的骨盆骨折患者42例，男30例，女12例，分别进行X射线摄片和螺旋CT扫描，利用表面遮盖法(SSD)三维重建，同时利用三维成像软件进行多平面重建(MPR)，选择能最佳显示骨折的图像进行存储并进行摄片，比较两种方法的效果。 结果与结论：所有骨盆骨折患者经螺旋CT三维成像摄片均显示骨折，能较准确地描述出骨折分型和碎骨部位，其效果明显优于X射线摄片(P < 0.05)。提示螺旋CT三维成像技术在骨盆骨折的诊断中具有非常重要的作用，能较准确地显示骨折的情况，能为治疗方法的选择提供依据。

Application of three-dimensional reconstruction images of spiral CT in pelvis fractures

BACKGROUND: The technology of three-dimensional (3-D) construction of spiral CT can offer intuitionistic 3-D images. These images can be rotated randomly to allow the displacement of pelvis fracture observed from any visual angles thus clear and direct impression of fracture can be acquired by doctor. OBJECTIVE: To observe the clinical effectiveness of 3-D reconstruction images of spiral CT in the pelvic fractures. METHODS: From November 2007 to March 2009, 42 patients with pelvic fractures from Department of Orthopedics, Affiliated Hospital of Zunyi Medical College were selected, including 30 males and 12 females. They underwent X-ray and spiral CT scanning respectively. 3-D reconstruction was performed with surface shaded display and multi-planar reconstruction with 3-D imaging software simultaneously. These images which displayed best results of fracture were selected to store and photographed. The observation effects were compared with two scanning methods. RESULTS AND CONCLUSION: All patients had shown fractures with spiral CT 3-D imaging radiography. The bone fragments were shown more accurately with 3-D reconstruction images. The display effect of 3-D images was better than X-ray radiography (P < 0.05). The 3-D spiral CT imaging has a very important value in the diagnosis of pelvic fractures. It can show the fracture situation of pelvis more accurately and provide evidence for the choice of treatment.