天津医药
天津醫藥
천진의약
TIANJIN MEDICAL JOURNAL
2014年
1期
24-26
,共3页
李宁%李海涛%葛庆峰%李鑫
李寧%李海濤%葛慶峰%李鑫
리저%리해도%갈경봉%리흠
体层摄影术,螺旋计算机%冠状血管%冠状血管造影术%血管造影术%冠状动脉疾病%256层螺旋CT
體層攝影術,螺鏇計算機%冠狀血管%冠狀血管造影術%血管造影術%冠狀動脈疾病%256層螺鏇CT
체층섭영술,라선계산궤%관상혈관%관상혈관조영술%혈관조영술%관상동맥질병%256층라선CT
tomography,spiral computed%coronary vessels%coronary angiography%angiography%coronary artery dis-ease%256-slice computed tomography
目的：评价256层螺旋CT冠脉成像（CTA）诊断及分级评价冠心病的临床应用价值。方法分析256层螺旋CTA和选择性冠脉造影术（CAG）检查的疑似或已确诊冠心病的101例患者资料。基于分血管节段后，共计1313段血管被评估。以CAG为金标准，评价CTA诊断冠心病（冠脉存在狭窄程度≥50%病变节段）的准确性；再分析CTA诊断冠脉分级评价（轻度狭窄：<50％；中度狭窄：50％~75％；重度狭窄：76％~100％，包括完全闭塞）的准确性。结果256层螺旋CTA诊断冠心病的灵敏度为94.87%、特异度为52.17%、阳性预测值为87.06%、阴性预测值为75.00%。256层螺旋CTA分级评价冠脉狭窄程度的准确性：轻度、中度、重度狭窄的灵敏度分别为44.23%、40.00%、51.77%。结论256层螺旋CTA判断冠脉狭窄程度能力仍显不足，但可作为可疑冠心病患者的筛查手段或低危冠心病患者的复查手段。
目的：評價256層螺鏇CT冠脈成像（CTA）診斷及分級評價冠心病的臨床應用價值。方法分析256層螺鏇CTA和選擇性冠脈造影術（CAG）檢查的疑似或已確診冠心病的101例患者資料。基于分血管節段後，共計1313段血管被評估。以CAG為金標準，評價CTA診斷冠心病（冠脈存在狹窄程度≥50%病變節段）的準確性；再分析CTA診斷冠脈分級評價（輕度狹窄：<50％；中度狹窄：50％~75％；重度狹窄：76％~100％，包括完全閉塞）的準確性。結果256層螺鏇CTA診斷冠心病的靈敏度為94.87%、特異度為52.17%、暘性預測值為87.06%、陰性預測值為75.00%。256層螺鏇CTA分級評價冠脈狹窄程度的準確性：輕度、中度、重度狹窄的靈敏度分彆為44.23%、40.00%、51.77%。結論256層螺鏇CTA判斷冠脈狹窄程度能力仍顯不足，但可作為可疑冠心病患者的篩查手段或低危冠心病患者的複查手段。
목적：평개256층라선CT관맥성상（CTA）진단급분급평개관심병적림상응용개치。방법분석256층라선CTA화선택성관맥조영술（CAG）검사적의사혹이학진관심병적101례환자자료。기우분혈관절단후，공계1313단혈관피평고。이CAG위금표준，평개CTA진단관심병（관맥존재협착정도≥50%병변절단）적준학성；재분석CTA진단관맥분급평개（경도협착：<50％；중도협착：50％~75％；중도협착：76％~100％，포괄완전폐새）적준학성。결과256층라선CTA진단관심병적령민도위94.87%、특이도위52.17%、양성예측치위87.06%、음성예측치위75.00%。256층라선CTA분급평개관맥협착정도적준학성：경도、중도、중도협착적령민도분별위44.23%、40.00%、51.77%。결론256층라선CTA판단관맥협착정도능력잉현불족，단가작위가의관심병환자적사사수단혹저위관심병환자적복사수단。
Objective To evaluate and analyze the diagnostic accuracy of 256-slice computed topographic angiog-raphy (CTA) and coronary angiography (CAG) in patients with coronary artery disease (CAD). Methods One hundred and one patients (suspected CAD and confirmed CAD with re-examination) underwent the 256-slice CTA and CAG were includ-ed in this study. The coronary artery imaging data of 101 patients were retrospectively collected and analyzed. Calculations for accuracy were conducted on a segmental basis. A total of 1 313 comparable segments were evaluated. The accuracy of 256-slice CTA was evaluated in the diagnosis of moderate and severe stenosis of coronary artery(stenosis in segments of cor-onary artery≥50%). The values for diagnostic accuracy of 256-slice CTA were analyzed, including mild stenosis: <50%, moderate stenosis:50%~75%, severe stenosis:76%~100%and complete occlusion. Results The sensitivity of 256-slice CTA for diagnostic accuracy to coronary heart disease was 94.87%, and the specificity was 52.17%. The positive predictive value was 87.06%and the negative predictive value was 75.00%. The accuracy rates of 256-slice CTA for evaluating the cor-onary artery stenosis were:mild stenosis (44.23%), moderate stenosis (44.23%), severe stenosis (40.00%) and total occlusion of coronary artery (51.77%), respectively. Conclusion The diagnostic value of 256-slice CTA for the degree of coronary ar-tery stenosis is insufficient, which can be used as a potential alternative screening examination to detect coronary artery ste-nosis in suspected patients and a method of re-examination in low risk patients with CAD.
