CAJ | 학술논문

抽取我院行双源CT冠状动脉造影(DSCTA)检查确诊为冠心病的100例患者分成老年组53例和中年组47例.DSCTA使用曲面重建和最大密度投影等后处理重建技术,以冠状动脉X线造影检查结果为标准,在段的基础上评价冠脉狭窄程度≥50％的各项指标及差异.结果显示,DSCTA对老年组和中年组冠状动脉的可评价率分别为97.0％、98.6％,两组比较差异无统计学意义(P＞0.05).老年组和中年组冠状动脉狭窄≥50％节段发生率分别为12.6％、9.0％,多支血管病变发生率分别为28.3％、6.4％,两组比较差异均有统计学意义(P＜0.05).DSCTA评价老年组冠状动脉狭窄程度≥50％的敏感度、特异度、阳性预测值、阴性预测值依次为92.3％、98.0％、88.0％、98.9％；评价中年组的各项指标依次为96.0％、99.0％、90.6％、99.6％；两组比较差异无统计学意义(P＞0.05).提示,DSCTA可作为冠心病的有效筛查和评价方法；评价冠状动脉狭窄的各项指标随着年龄增长有下降趋势,但差异无统计学意义.
추취아원행쌍원CT관상동맥조영(DSCTA)검사학진위관심병적100례환자분성노년조53례화중년조47례.DSCTA사용곡면중건화최대밀도투영등후처리중건기술,이관상동맥X선조영검사결과위표준,재단적기출상평개관맥협착정도≥50％적각항지표급차이.결과현시,DSCTA대노년조화중년조관상동맥적가평개솔분별위97.0％、98.6％,량조비교차이무통계학의의(P＞0.05).노년조화중년조관상동맥협착≥50％절단발생솔분별위12.6％、9.0％,다지혈관병변발생솔분별위28.3％、6.4％,량조비교차이균유통계학의의(P＜0.05).DSCTA평개노년조관상동맥협착정도≥50％적민감도、특이도、양성예측치、음성예측치의차위92.3％、98.0％、88.0％、98.9％；평개중년조적각항지표의차위96.0％、99.0％、90.6％、99.6％；량조비교차이무통계학의의(P＞0.05).제시,DSCTA가작위관심병적유효사사화평개방법；평개관상동맥협착적각항지표수착년령증장유하강추세,단차이무통계학의의.
One hundred patients were diagnosed with coronary heart disease through dual-source CT coronary angiography (DSCTA) in our hospital,including 53 cases aged ≥60 y (elderly group) and 47 cases ＜60 y (middle-aged group).The curved-planar reconstruction (CPR),maximal intensity projection (MIP) and other post-processing reconstruction techniques were used to evaluate the indicators and differences of coronary stenosis ≥ 50％ ; the X-ray coronary angiography (CAG) findings were regarded as the gold standard.The evaluable rates of coronary arteries through DSCTA were 97.0％ and 98.6％ for two groups (P ＞0.05).The positive rate of coronary artery stenosis ≥ 50％ in elderly group was higher than that of middle-age group ( 12.6％ vs 9.0％ P ＜0.05 ).The rates of multi-vessel disease in elderly group (28.3％ ) was also significantly higher than that of middle-age group (6.4％,P ＜0.05 ).The sensitivity,specificity,positive predictive value and negative predictive value in evaluation of coronary artery stenosis ≥ 50％ for elderly patients were 92.3％,98.0％,88.0％ and 98.9％ respectively; those for middle-aged patients were 96.0％,99.0％,90.6％ and 99.6％ respectively ( P ＞0.05 ).DSCTA imaging provides an effective screening and evaluation method for coronary heart disease in elderly and middle-aged patients.