非ST段抬高型急性冠状动脉综合征的64排螺旋CT表现

The imaging of angiography of non-ST segment elevation acute coronary syndrome under 64-dector CT

目的:探讨非ST段抬高型急性冠状动脉综合征(NSTEACS)的64排螺旋CT冠状动脉造影的表现。方法:对实施64排螺旋CT冠状动脉造影的20名正常人及35例NSTEACS患者,研究其冠状动脉病变发生的部位、斑块累及血管支数、斑块性质(硬化斑块、非硬化斑块或混合斑块)、斑块所致的狭窄以及主要冠状动脉远段血管是否中断等影像特点。结果:在NSTEACS患者中,硬化斑块的发生率、斑块累及冠状动脉支数均明显高于正常人群(P<0.01);而心肌桥及斑块发生的位置差异均无统计学意义(P>0.05)。NSTEACS组冠状动脉狭窄率范围较广,狭窄率达15%～100%。结论:冠状动脉多发硬化斑块、斑块累及数支冠状动脉、冠状动脉狭窄率范围较广为NSTEACS影像特点,对于临床治疗有一定的指导意义。

Objective：To explore the imaging of angiography of non-ST segment elevation acute coronary syndrome（NSTEACS） under 64-dector CT.Methods：Coronary artery angiography of twenty normal persons and thirty-five patients with NSTEACS were detected using 64-detector computed tomography,64-MDCT.The data of the lesion site,vessel involved number,plaque nature（calcified plaque,non-calcified plaque or mixed plaque）,stenosis（degree and length） and the obstructed vessel were analysed.Results：There was significant statistic difference in the incidence of calcified plaque and plaques involving the coronary artery number（P0.01）,but no significant statistic difference in myocardial bridge and plaque site（P0.05）,and the narrow rates of coronary artery ranged from 15% to 100% in NSTEACS group.Conclusions：The imaging features of NSTEACS show extensive calcified plaque,multiple vessels involved and the wide stenosis of coronary artery,which can guide.clinical service.