患者体型和图像采集模式对经皮冠状动脉造影射线剂量和图像质量的影响研究  

The effect of patient's body shape and image acquisition mode on the radiation dose and image quality in percutaneous coronary angiography

作　　者：钱海[1] 张玉琴[2] 徐艳 胡德兴 岑泽民[1] 楼钶楠[1] QIAN Hai;ZHANG Yuqin;XU Yan;HU Dexing;CEN Zemin;LOU Kenan(Department of Cardiology,Ningbo Medical Center Lihuili Hospital,Ningbo,Zhejiang Province 315040,China)

机构地区：[1]宁波市医疗中心李惠利医院心内科,浙江宁波315040 [2]宁波市医疗中心李惠利医院影像科,浙江宁波315040 [3]宁波市医疗中心李惠利医院血管介入科,浙江宁波315040

出　　处：《介入放射学杂志》2024年第6期599-603,共5页Journal of Interventional Radiology

基　　金：浙江省医药卫生科技计划项目(2022KY1084)。

摘　　要：目的探讨经皮冠状动脉造影术中患者体型和图像采集模式对射线剂量和图像质量的影响。方法选择2022年1月至2023年6月于宁波市医疗中心李惠利医院接受择期经皮冠状动脉造影术患者40例,随机分为常规组(男11例,女9例,冠状动脉模式采集图像)和低剂量组(男14例,女6例,电生理模式采集图像)。收集患者基本信息、体型数据和各项射线剂量数据,制定图像质量评分表量化评估图像质量。两组间比较采用t检验、Mann-Whitney U检验,相关性分析采用Pearson相关分析。结果患者胸围越大射线剂量越高,呈正线性相关。低剂量组各项射线剂量数据显著低于常规组(均P<0.01),降低比率为48.51%~60.74%。两组图像质量评分比较差异无统计学意义(均P>0.01),图像质量均在良好及以上,符合介入手术要求。结论经皮冠状动脉造影术中射线剂量受患者体型、图像采集模式、曝光时间等多因素综合影响。优化图像采集模式可显著减少射线剂量,同时保证图像质量,保护患者和术者健康。Objective To investigate the effect of patient's body shape and image acquisition mode on the radiation dose and image quality in percutaneous coronary angiography.Methods A total of 40 patients,who received selective percutaneous coronary angiography at the Ningbo Medical Center Lihuili Hospital of China between January 2022 and June 2023,were selected for this study.The patients were randomly divided into conventional group(including 11 males and 9 females,using coronary angiography mode to make image acquisition)and low-dose group(including 14 males and 6 females,using electrophysiological mode to make image acquisition).The patient's basic information,body size data,and the various radiation dose data were collected.The image quality rating scale for assessing the image quality was formulated.The independent sample t-test and Mann-Whitney U test were used for the comparison between the two groups.Pearson correlation analysis method was used to make correlation analysis.Results The larger the patient's chest circumference was,the higher the radiation dose would be,there was a positive linear relationship between the patient's chest circumference and the radiation dose.All the radiation dose parameters in the low-dose group were significantly lower than those in the conventional group(P<0.01),and its reduction percentage was48.51%-60.74%.No statistically significant difference in image quality score existed between the two groups(P>0.01),and in both groups the image quality was rated as good or better,meeting the requirements of intervention procedures.Conclusion In percutaneous coronary angiography the radiation dose is influenced by multiple factors including patient's body shape,image acquisition mode,exposure time,etc.Optimizing the image acquisition mode can remarkably reduce the radiation dose while maintaining the image quality and protecting the health of patients and operators.

关 键 词：冠状动脉造影 体型 射线剂量 图像质量 

分 类 号：R816.2[医药卫生—放射医学]