多层螺旋CT冠状动脉钙化积分初探

Evaluation of Multi-slice Spiral CT for Quantification of Coronary Artery Calcium

目的 评价多层螺旋 CT测定冠状动脉钙化积分的准确性。材料与方法 45例患者 (32例有冠心病病史 ,其余 13例无症状 )行多层螺旋 CT(MSCT)钙化积分检查 ,其中 10例另行冠状动脉造影检查。结果 冠心病组的平均钙化分数为 480 .5± 42 .3,与无症状组的 12 6 .3± 2 3.9有显著性差异 (P<0 .0 5 ) ;将 10例进行血管造影的患者 4的结果与多层螺旋 CT所得的冠状动脉钙化分数作对比 ,以积分大于 40 0者统计为阳性 ,发现两者之间的结果无显著性差异 (P>0 .0 5 )。结论 MSCT整合心电门控扫描可较准确地测量冠状动脉钙化积分 。

Objective To access the accuracy of multi slice spiral CT (MSCT) scan in estimating the quantification of coronary artery calcium. Materials and Methods ECG gated MSCT was performed in 45 patients, of which 32 had coronary heart disease and 13 was asymptomatic. Diagnosis was proved with coronary angiography in 10 of them.Results Significant difference (P<0.05) in the mean coronary artery calcification score existed between coronary heart disease group (480.5±42.3) and asymptomatic group (126.3±23.9). A comparison between coronary angiographic results and coronary artery calcification score (taking >400 as positive) in 10 patients was made, and no significant difference was found between the two (P>0.05). Conclusion ECG gated MSCT can accurately quantify the coronary calcium.