320排动态容积CT在冠心病筛查中的初步应用

目的探讨320排动态容积CT冠状动脉造影在冠状动脉粥样硬化性心脏病(冠心病)筛查中的应用。方法分析90例临床拟诊为冠心病患者的320排CT前瞻性心电门控全心容积扫描检查结果。对显示的冠状动脉主干及其主要分支进行分级评价,并对辐射剂量进行统计分析。结果本组90例,发现狭窄性病变70例,其中三支狭窄性病变10例,两支狭窄性病变25例,单支狭窄性病变35例;其中狭窄度≥50%35支(30.43%),<50%80支(69.57%)。90例冠状动脉成像质量1级80例(88.89%),2级9例(10%),3级1例(1.11%)。结论 320排CT冠状动脉成像速度快,图像质量高,辐射剂量低,是冠心病筛查的首选检查。

Preliminary application of 320-row dynamic volume CT in screening of coronary heart disease

Objective To investigate the application of 320-row dynamic volume CT coronary angiography to coronary heart disease(CHD) screening.Methods A total of 90 patients diagnosed as CHD were analyzed on the 320 CT prospective ECG gated heart volume scan,as well as the display of the main coronary artery and its main branches rating.Results Stenotic lesion revealed a 70 of 90 cases,of which there were three-branch stenotic lesions in 10 cases,two-branch stenotic lesions in 25 cases,and single-branch stenotic lesions in 35 cases;the degree of stenosis ≥ 50% was found in 35 branches(30.43%),and that of stenosis < 50% in 80 branches(69.57%).In the 90 cases,the coronary artery imaging quality was determined as class-1 in 80(88.89%),class-2 in 9(10%),and class-3 in 1(1.11%).Conclusion It is suggested that 320-row CT coronary artery imaging is a preferred screening approach to CHD with speed,high image quality and low radiation dose.