摘要
目的探讨肝癌CT扫描的参数选择、造影剂的应用、扫描时机的选择。方法481例肝癌患者行多期上腹部CT增强扫描检查。扫描参数:120kV、200 mAs、层距5 mm、螺距1.0。结果本组病例中,96.47%的病例扫描获得满意效果。在肝动脉期中有352例出现明显强化;在门静脉期有72例不强化呈低密度灶,其中有37例发现有门静脉癌栓;延迟扫描均出现强化减低。17例增强扫描不满意,其中10例患有门脉高压症,4例注射失误致造影剂外渗,3例出现轻度碘过敏反应症状(发热、恶心、呕吐等)。结论正确应用扫描技术,是肝癌正确诊断的基础。
Objective To select the parameters/moment of scanning and the way to use contrast agents in order to get best CT images of hepatic carcinoma. Methods 481 patients with hepatic carcinomas were examined from the top of liver to spina iliaca anterior superior by contrastenhanced Multi-slice CT. The parameters we had selected were as follows： 120kV （voltage）, 200 mAs （current）, 5 mm （interval）, and 1.0 （pitch）. Results 96.47% of all get satisfactory images, including 352 well-enhanced cases in artery stage, 72 cases poorly-enhanced cases in portal vein stage, 37 cases with embolus in portal vein, and 352 unenhanced cases in delaying stage. 17 cases get unsatisfactory images, including 10 cases with portal hypertension, 4 cases with extravasation of contrast agents, and superficial hyperacuity to Iodine. Conclusions It was the foundation of exactly diagnosing hepatic carcinoma to accurately apply CT scanning technology.
出处
《当代医学》
2009年第4期1-2,共2页
Contemporary Medicine
基金
辽宁省科技攻关计划项目资助(2005225003-17)
关键词
肝癌
多层螺旋CT
增强扫描
hepatocellular Carcinoma
Multi-Slice Spiral CT
contrast-enhanced scanning
