西门子双源CT双能量低剂量增强扫描技术在原发性肝癌中的应用研究

Enhanced scanning in liver cancer SIEMENS dual energy CT low dose

目的:探究双源CT低剂量增强扫描原发性肝癌影象学。方法:选取42位原发性肝癌患者分组进行80kV、140kV和100kV、140kV双能量动态增强扫描,扫描的范围自膈肌上缘至肝下缘,将两组图像进行客观评价。结果:42例病例影像诊断均与临床诊断相符合,80kV与120kV的比较,P=0.081>0.05;80kV与140KV比较,P=0<0.05;120kV与140kV比较,P=0<0.05;100kV与120kV比较,P=0.137>0.05;100kV与140kV比较,P=0<0.05;120kV与140kV比较,P=0<0.05。A、B两组图像均满足临床诊断要求,A组图像质量优于B组图像质量,A组辐射剂量明显低于B组辐射剂量。结论:双能量低剂量动态增强扫描原发性肝癌既不影响图像成像质量又可以明显降低病人辐射剂量,最大限度的对病人进行防护。

Objective： TO explore the dual source CT low dose scan imaging in primary hepatocellular carcinoma. Methods： 42 patients with primary liver cancer were divided into two groups： 80kV, 140kV and 100kV, 140kV dual energy dynamic enhanced scanning, the scanning range from the upper margin of the diaphragm to the lower edge of the liver, the objective evaluation of the two groups of images. Results： 42 cases were consistent with the imaging diagnosis and clinical diagnosis, compared with 120kV, 80kV P=0.081〉0.05; 80kV P=0〈0.05; 120kV and 140KV, compared with 140kV, P=0〈0.05; 100kV P=0.137〉0.05; 100kV and 120kV, compared with 140kV, P=0〈0.05 120kV and 140kV, P=0〈0.05. The A and B images of two groups all meet the requirements of clinical diagnosis. The image quality of A group is better than that of B group, and the radiation dose of A group is significantly lower than that of B group. Conclusion： Dual energy low dose dynamic enhanced scanning of primary liver cancer can not only affect the imaging quality of the image, but also can significantly reduce the patient＇s radiation dose, and maximize the protection of patients.