摘要
目的 评价螺旋CT双期增强扫描在胰腺癌诊断中的应用价值。方法 螺旋CT双期增强扫描胰腺癌 2 7例 ,先平扫 ,再以 3ml/s速度团注对比剂 15 0ml,分别行动脉期 (注射后 2 5s)和门脉期 (注射后 6 0～ 70s)扫描。并测量各扫描期肿瘤和正常胰腺组织的CT值 ,计算出肿瘤 胰腺密度差。结果 肿瘤的平均CT值在动脉期和门脉期分别是48± 8HU、72± 6HU ,正常胰腺组织的CT值是 12 5± 18HU、98± 11HU ,肿瘤 胰腺密度差为 73± 2 1HU、2 5±12HU ,二者之间有显著差别。结论 动脉期可得到最大的肿瘤 胰腺密度差值 。
Objective To evaluation the application value of two phase enhanced spiral CT in pancreatic adenocarcinoma. Methods Two phase enhanced spiral CT was performed in 27 cases of pancreatic adenocarcinoma. After plain CT examination, performed arterial phase(25s after infusion)and portal venous phase(60～70s after infusion)with a 150ml bolus injection of contrast material at 3ml/s. CT attenuation values of tumor and normal pancreas in all scanning phase were obtained and the tumor pancreas contrast was calculated. Results Mean tumor enhancement were 48±8 HU(arterial phase)and 72±6 HU(portal venous phase), normal pancreas enhancement were 125±18 HU、98±11 HU, mean tumor pancreas contrast was significantly differenced on arterial phase (73±21 HU)and portal venous phase (25±12 HU). Conclusion Excellent tumor pancreas contrast is obtained with arterial phase scans, as such it is of significance reference value for diagnosis pancreatic adenocarcinoma. [
出处
《中国医学影像技术》
CSCD
2001年第2期108-110,共3页
Chinese Journal of Medical Imaging Technology
