实验性增强法在肝脏CT动态增强中的应用体会

目的本研究比较了试验性增强法与常规增强法在肝脏CT动态增强扫描中的应用情况,探讨了试验性增强法在肝脏CT动态增强中的应用价值。方法对425例接受肝脏CT动态增强扫描检查的患者进行回顾性分析。其中第一组203人次按常规方法行CT动态增强(在静脉开始注射造影剂后14~18s进行动脉期扫描),第二组222人次接受试验性增强法CT动态增强检查。比较、分析两组增强结果。结果第一组57.1%(116/203)的病例获得了最佳的肝动脉期图像,第二组87.4%(194/222)的病例获得了最佳的肝动脉期图像。统计学分析两组肝动脉期图像质量优良率的差异具有统计学意义。结论试验性增强法肝脏CT动态增强扫描对于肝脏动脉期的显示优于常规CT动态增强检查法。

COMPARISON OF TEST-INJECTION METHOD AND FIXED-TIME METHOD FOR LIVER USING DYNAMIC COMPUTE TOMOGRAPHY

Objective The purpose of this study was to identify the usefulness of the test-injection method as compared with the fixed-time method in dynamic CT of liver. Methods 425 patients have been studied that underwent dynamic CT. 203 patients (group 1) accepted the fixed-time method (14~18 second scan time delay in the hepatic arterial phase HAP]). 222 patients (group 2) accepted the test-injection method. The adequacy of the HAP was evaluated. Result In group 1, 57.1%(116/203)of the cases were obtained at the optimal HAP; the percentage in group 2 was 87.4%(194/222)of the cases. This difference was statistically significant (p<0.05).Conclusion The CT using the test-injection method resulted in better optimal HAP than the CT using the fixed-time method.