| 64层螺旋CT心脏冠状动脉检查前瞻性心电门控扫描技术降低辐射剂量的研究 |
| |
| 引用本文： | 张辉阳,周智鹏,邱维加,曾阳东,苏寿红.64层螺旋CT心脏冠状动脉检查前瞻性心电门控扫描技术降低辐射剂量的研究[J].中国医学影像学杂志,2011,19(7):495-498. |
| |
| 作者姓名： | 张辉阳 周智鹏 邱维加 曾阳东 苏寿红 |
| |
| 作者单位： | 广西桂林医学院附属医院放射科,广西桂林,541001 |
| |
| 摘 要： | 目的探讨前瞻性心电门控扫描在64层螺旋CT心脏冠状动脉成像(CTCA)中降低X线辐射剂量的作用。资料与方法 83例患者按照就诊先后顺序随机分成两组,A组(36例)采用回顾性心电门控螺旋扫描技术;B组(47例)采用前门控(SSP)扫描。比较各组患者的心率、体重指数、图像噪声、冠状动脉评分、CT剂量指数(CTDIvol)、剂量长度乘积(DLP)和有效剂量(ED)。结果 A组平均辐射剂量为21.6mSv;B组为4.3mSv,B组较A组降低约80.1(P<0.01),两组病例心率、体重指数、图像噪声和质量评分差异无统计学意义(P>0.05)。所获图像均能满足临床诊断需要。结论在保证图像质量的前提下,前瞻性心电门控扫描技术可明显降低CTCA检查的辐射剂量。
|
| 关 键 词： | 体层摄影术 螺旋计算机 冠状动脉疾病 辐射剂量 |
Study of Radiation Dosage Reduction with Snap-Shot Pulse Technique in 64-Slice CT Coronary Angiography |
| |
| ZHANG Huiyang,ZHOU Zhipeng,QIU Weijia,ZENG Yangdong,SU Shouhong.Study of Radiation Dosage Reduction with Snap-Shot Pulse Technique in 64-Slice CT Coronary Angiography[J].Chinese Journal of Medical Imaging,2011,19(7):495-498. |
| |
| Authors: | ZHANG Huiyang ZHOU Zhipeng QIU Weijia ZENG Yangdong SU Shouhong |
| |
| Affiliation: | ZHANG Huiyang ZHOU Zhipeng QIU Weijia ZENG Yangdong SU Shouhong Department of Radiology,the Affiliated Hospital of Guilin Medical College,Guilin,Guangxi,541001 |
| |
| Abstract: | Purpose To investigate the value of Snap-Shot Pulse(SSP) technique in reducing radiation dosage of CT Coronary angiography(CTCA) examination with 64-slice spiral CT.Materials and Methods All 83 patients with CTCA scanning were divided into 2 groups:Group A(n =36) with Helical scanning;group B with SSP scanning(n =47).Heart rate and body mass index of the patients,picture noise,score of coronary artery,CTDIvol,DLP and ED of two groups were compared.Results 80.1 radiation dosage was reduced of group B compare... |
| |
| Keywords: | Tomography spiral computed Coronary disease Radiation dosage |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
