【摘要】：目的:探討雙源CT血管成像(DSCTA)評價非ST段抬高型急性冠脈綜合征(NSTE-ACS)的價值。方法:搜集臨床疑似NSTE-ASC且經(jīng)DSCTA判斷為左冠狀動脈前降支管腔臨界狹窄(狹窄程度為50%~70%)的患者57例,1周內(nèi)行冠脈造影(CAG)證實狹窄程度,并行導(dǎo)管法測量血流儲備分?jǐn)?shù)(FFR),以FFR 0.80為臨界值將57例患者分為A組(FFR0.80)和B組(FFR≥0.80),測量左室前壁、側(cè)壁心肌、左心室腔CT值及舒張末期、收縮末期節(jié)段室壁厚度,比較兩組間前壁與側(cè)壁相對CT值、舒張末期心肌厚度及室壁增厚率。結(jié)果:A、B兩組前壁與側(cè)壁心肌相對CT值及舒張末期心肌厚度差異均有統(tǒng)計學(xué)意義(P0.05),A組前壁與側(cè)壁室壁增厚率差異有統(tǒng)計學(xué)意義(P0.05),B組前壁與側(cè)壁室壁增厚率差異無統(tǒng)計學(xué)意義(P0.05);前壁心肌相對CT值及室壁增厚率A、B兩組間差異有統(tǒng)計學(xué)意義(P0.05),而舒張末期心肌厚度A、B兩組間差異無統(tǒng)計學(xué)意義(P0.05)。結(jié)論:DSCTA評價左冠狀動脈前降支管腔臨界狹窄聯(lián)合節(jié)段心肌CT值、舒張末期心肌厚度及室壁增厚率分析,可為NSTE-ACS的診斷及治療提供依據(jù)。
[Abstract]:Objective: to evaluate the value of dual-source CT angiography (DSCTA) in the evaluation of non-ST segment elevation acute coronary syndrome (NSTE-ACS). Methods: 57 patients with suspected NSTE-ASC who were diagnosed by DSCTA as critical stenosis of left anterior descending coronary artery (50%) were examined by (CAG) within 1 week. 57 patients were divided into two groups: group A (FFR0.80) and group B (FFR 鈮，

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