CT机问世后，逐渐应用于骨与关节、软组织肿瘤的检查，它具有很多的优点，能显示横断面解剖及其空间关系，同时显示骨与软组织，且具有良好的分辨率，并可双侧显示有利于对比，进行影像处理和重建，还可行增强检查等。 CT的图像质量好，诊断价值高而又是无创伤、无痛苦、无危险 After the advent of CT, it has been gradually applied to the examination of bone and joint and soft tissue tumors. It has many advantages, such as showing anatomic cross-section and its spatial relationship, showing bone and soft tissue with good resolution, and can be double-sided Display is conducive to contrast, image processing and reconstruction, but also feasible to enhance the inspection. CT image quality, high diagnostic value but also non-invasive, painless, no danger