CT不同成像技术对冠状动脉CTA检查结果的影响  

Impact of Different CT Imaging Techniques on Results of Coronary Artery CTA Examination

作　　者：应朴 李星露 姚铖 YING Pu;LI Xinglu;YAO Cheng(Changshu NO.2 People's Hospital,Changshu 215500,China;不详)

机构地区：[1]常熟市第二人民医院,江苏常熟215500

出　　处：《中外医学研究》2024年第1期55-58,共4页CHINESE AND FOREIGN MEDICAL RESEARCH

基　　金：常熟市第二人民医院科技计划项目(CSEY2021115)。

摘　　要：目的:探讨CT不同成像技术对冠状动脉计算机断层扫描血管造影(CTA)检查结果的影响。方法:选取2021年1月—2023年6月于常熟市第二人民医院接受冠状动脉CTA检查的120例患者作为研究对象,采用随机数表法按2∶1将患者分为对照组(n=80)与观察组(n=40)。对照组采用回顾性心电门控技术,观察组采用前瞻性心电门控技术。比较两组心率、扫描时间、辐射剂量[CT容积剂量指数(CTDI_(vol))、剂量长度乘积(DLP)、有效辐射剂量(ED)]、成像质量(解剖结构显示、CT值标准范围、运动造影、图像质地)及患者舒适度(Kolcaba简化舒适状况量表评分)。结果:观察组心率、CTDI_(vol)、DLP、ED低于对照组,扫描时间短于对照组,CT值标准范围、运动造影、图像质地评分、总分及生理、心理、社会、环境评分高于对照组,差异有统计学意义(P<0.05)。结论:前瞻性心电门控技术在冠状动脉CTA检查中相较于回顾性心电门控技术,具有更低的心率、扫描时间和辐射剂量,同时能提供更高的成像质量和更优的患者舒适度。Objective:To investigate the impact of different CT imaging techniques on the results of coronary artery computed tomography angiography(CTA).Method:A total of 120 patients who underwent coronary CTA examination in Changshu NO.2 People's Hospital from January 2021 to June 2023 were selected as the research objects,the patients were divided into the control group(n=80)and the observation group(n=40)by random number table method according to 2∶1.The control group was given retrospective electrocardiographic gating technology,and the observation group was given prospective electrocardiographic gating technology.The heart rate,scanning time,radiation dose[CT volume dose index(CTDI_(vol)),dose length product(DLP),effective radiation dose(ED)],imaging quality(anatomical structure display,CT value standard range,motion imaging,image texture)and patient comfort(Kolcaba simplified comfort status scale score)were compared between two groups.Result:The heart rate,CTDI_(vol),DLP and ED in the observation group were lower than those in the control group,the scanning time was shorter than that in the control group,the scores of standard range of CT value,exercise angiography,image texture,total score and scores of physiological,psychological,social and environmental were higher than those in the control group,the differences were statistically significant(P<0.05).Conclusion:Compared with the retrospective electrocardiographic gating technique,the prospective electrocardiographic gating technique in coronary artery CTA examination has a lower heart rate,scanning time and radiation dose,and it can provide higher image quality and better patient comfort.

关 键 词：冠状动脉 计算机断层扫描血管造影 回顾性心电门控技术 前瞻性心电门控技术 成像质量 

分 类 号：R816.2[医药卫生—放射医学]