不同浓度CT对比剂在胰腺动脉CT成像中的应用研究

目的 比较不同浓度对比剂在64排螺旋CT胰腺动脉检查中的显示效果.方法 将本院120例行腹部增强CT检查的患者随机分成A、B两组,每组各60例,分别注射300 mgI/ml(A组)和370 mgI/ml(B组)2种浓度对比剂,对比剂用量算法及注射速度两组一致,分别为0.5 gI/kg体重和4ml/s.利用MIP(最大密...

Application on different contrast media concentration in the pancreatic CT angiography scanning

Objective To compare the effects of the different contrast media concentration on the visualization of pancreatic arteries using 64-Detector Spiral CT.Methods 120 cases who underwent abdominal enhancement CT scanning were randomly divided into group A (n = 60) and B (n = 60). The contrast media concentration was 300 mgI/ml for group A and 370 mgI/ml for group B respectively, both groups shared the same contrast media dose algorithm and injection speed, with 0.5 gI/kg body weight and 4 ml/s respectively. Reformating the pancreatic arteries via MIP (maximum intensity projection), VR (volume rendering) and MPR (multi-planar reconstruction).Results The CT value of the abdominal aortic celiac opening of group B is significantly higher than A (P < 0.01). The visualization scores of pancreatic arteriesin Group B are significantly higher than A (P < 0.05). The visualization ratios of pancreatic arteriesin Group Bare higher than A, the differences of AIPDA、PIPDA、DPA、TPA、PMA、CPA between the 2 Groups have statistically significant (P < 0.05).Conclusion Pancreatic arteries could have a better visualization by using 370 mgI/ml contrast media in pancreatic artery scanning.