目的 探讨螺旋CT平扫与多期增 强扫描检出肝脏实质性占位性病变对比 诊断中的应用价值。方法 对螺旋CT和多 期增强扫描肝脏实质性占位性病变的图 像，分别从对病灶的检出数目、图像显 影质量和图像确诊优势这些方面比较两 种检查。结果 多期增强扫描图像对肝 实质性占位性病灶的检出数目53个优于 螺旋CT平扫的33个病灶，两组数据差异 具有统计学意义(P＜0.01)；螺旋平扫图 像质量于多期增强扫描质量，对肿瘤具 有增强信息的作用；多期动态增强扫描 图像更能对实质性占位性病灶判断其性 质，更有利于诊断。结论 多期动态增强 扫描显影图像质量可得到肝脏和肝脏典 型病变多期图像表现特征，能够快速的 做出诊断，提高对肝脏实质占位性病临 床诊断率，避免误诊发生，可为临床诊 治提供影像依据。

Objective To investigate the application value of spiral CT scan and Multiphase scan on detecting liver space-occupying lesion. Methods Compare the checkout number, image enhancement quality, image confirmed advantage of the images by spiral CT scan and Multi-phase scan on liver space-occupying lesion. Results Checkout number of Multi-phase scan (focus: 53) was more than spiral CT scan (focus: 33), the difference was statistically significant (P＜0.01). Compared with Multi-phase scan, quality of spiral CT scan can enhance information. Multi-phase scan can better judge character and source compared with spiral CT scan. Conclusion Image quality by Multi-phase scan can obtain image features of liver and liver lesions. It can improve clinical diagnostic rate and avoid misdiagnosis and provide basis.