64排螺旋CT血管造影在全身血管疾病中的应用  

Application of 64-row spiral CT angiography in arterial diseases

作　　者：高跃雪[1] 于明川[1] 张滨[1] 陈巨坤[2] 

机构地区：[1]北京大学首钢医院医学影像中心,北京100041 [2]解放军总医院放射科,北京100853

出　　处：《中国临床医学影像杂志》2007年第1期40-43,共4页Journal of China Clinic Medical Imaging

摘　　要：目的:探讨64排螺旋CT在全身血管疾病中的应用价值。材料与方法:收集64排螺旋CT血管成像310例,其中颅内血管36例,颈部血管70例,胸腹部血管175例,肾动脉28例,下肢血管1例。造影剂用量按0.8～1.5ml/kg,一般用量为60～80ml,速率4.0～5ml/s,扫描延迟时间按两种方法进行:①SURESTART实时跟踪技术;②根据动脉循环时间确定,数据重建为vitrea2图像处理工作站容积重建。结果:64排螺旋CT血管成像310例,图像及解剖结构显示清晰,病灶显示准确。结论:64排螺旋CT机技术上改进了两方面:高空间分辨力(亚毫米)和高时间分辨率,扫描速度快,覆盖范围广,各向同性扫描,血管成像迅速快捷,在全身血管疾病中的应用较以往MSCT更具优势。Objective： To study the application value of 64 row spiral CT angiography in arterial disease. Materials and Methods： 64 row spiral CT angiography in 310 cases were analyzed including intracranial vascular CTA 36 cases, carotid artery 70 eases, thoraeo-abdominal vessels 175 cases, renal artery 28 cases, lower extremitylcase, dose of contrast medium used was 0.8-1.5ml/kg, general dosage 60-80ml, the rate of injection was 4.0-5ml, two methods of scan delay time were applied： SURE START bolus tracking and calculating time data. Reconstruction was done with Vitrea 2 workstation. Results： 64 rows spiral CT angiography in 310 cases, images and the anatomy display detail, and the focal display precise. Conclusion： 64 row spiral CT has improved technology on two sides： high spatial resolution （submillimetre） and high time resolution, more higher speed scanning, more larger region scanning, isotropic scanning, CT angiography is simple and quick. 64 row spiral CT has the advantages than previous multi-slice CT （MSCT） in the application of arterial disease.

关 键 词：血管疾病 体层摄影术 螺旋计算机 

分 类 号：R543[医药卫生—心血管疾病] R814.42[医药卫生—内科学]