【摘要】 目的探讨解剖M型超声(AMM)诊断冠心病心肌缺血的价值。方法对17例经冠状动脉造影证实的冠心病患者,在多巴酚丁胺负荷状态下采用AMM测量并计算室壁增厚率(ΔT)作为评判节段性室壁运动异常(RWMA)的方法,同时和视觉评分法进行对比研究。结果负荷状态下视觉评分法共发现41个RWMA,AMM法发现81个节段ΔT<25%,其中48个节段ΔT<10%。以ΔT<25%为判断RWMA的标准,诊断冠心病的敏感性为82.4%,特异性为80.2%;以ΔT<10%为标准,敏感性和特异性分别为64.7%和91.9%。结论在多巴酚丁胺负荷状态下AMM较视觉评分法评价冠心病更加准确可靠。更多还原

【Abstract】 Objective To study the diagnostic value in coronary artery disease (CAD) patients by anatomic M-mode echocardiography. Methods The endocardium displacement, systolic thickness, diastolic thickness and ΔT in 17 CAD patients were measured by anatomic M-mode during Dobutamine stress echocardiography (DSE) to contrast with the results of visual analogue scale. Results Regional wall motion abnormality (RWMA) were found in 41 sites by visual analogue scale, but by anatomic M-mode echocardiography ΔT<25% were found in 81 sites and ΔT<10% were found in 48 sites. If the diagnostic criterion was ΔT<25%, the diagnostic sensitivity was 82.4% and specificity 80.2%. If criterion was ΔT<10%, the sensitivity and specificity were 64.7% and 91.9% respectively. Conclusions Anatomic M-mode and DSE can evaluate myocardial ischemia in CAD patients more correctly and effectively than the visual analogue scale.更多还原