本文選題：冠狀動(dòng)脈 + 前瞻性心電門(mén)控��； 參考：《中國(guó)醫(yī)學(xué)計(jì)算機(jī)成像雜志》2015年06期

【摘要】：目的:評(píng)價(jià)單一時(shí)相前瞻性心電門(mén)控冠狀動(dòng)脈成像臨床應(yīng)用的可行性。方法:回顧性分析134例臨床疑似冠心病患者CT冠狀動(dòng)脈造影(CTCA)圖像,所有檢查均采用前瞻性心電門(mén)控,曝光補(bǔ)償時(shí)間設(shè)為0ms。以有創(chuàng)X線(xiàn)冠狀動(dòng)脈造影(CAG)結(jié)果為金標(biāo)準(zhǔn)進(jìn)行對(duì)照,對(duì)圖像質(zhì)量進(jìn)行評(píng)估。評(píng)估CTCA在冠狀動(dòng)脈節(jié)段水平對(duì)冠狀動(dòng)脈狹窄病變的顯示情況,及其診斷管腔狹窄(狹窄程度≥50%)的準(zhǔn)確性。結(jié)果:CTCA對(duì)冠心病診斷的敏感性、特異性、陽(yáng)性預(yù)測(cè)值和陰性預(yù)測(cè)值分別為:94.16%、97.42%、88.69%及98.73%。圖像質(zhì)量評(píng)分:4分93例,3分41例,無(wú)1、2分者。有效輻射劑量(ED)均值為1.44m Sv。結(jié)論:單一時(shí)相前瞻性心電門(mén)控CT冠狀動(dòng)脈成像,嚴(yán)格控制心率在65次/分以下掃描,能夠得到滿(mǎn)足診斷的圖像,且能夠明顯降低受檢者的有效輻射劑量。
[Abstract]:Objective: to evaluate the feasibility of single phase prospective ECG gated coronary angiography. Methods: Ct coronary angiography (CTCA) images of 134 patients with suspected coronary heart disease were retrospectively analyzed. The image quality was evaluated by using the results of invasive X-ray coronary angiography (CAG) as the gold standard. To evaluate the accuracy of CTCA in the diagnosis of coronary stenosis (鈮，

本文編號(hào)：2107392