【摘要】 目的 :探讨利声显心肌声学造影 (IMCE)在 AMI早期确诊及评价溶栓疗效中的价值。方法 :11例AMI患者溶栓治疗前后行 IMCE检查 ,分析利声显输注和递增触发时的心肌多普勒信号 ,并描绘时间 -强度曲线 ,测量平台期心肌显影强度 (A)、曲线上升平均斜率 (β)及 A·β乘积在治疗前后的变化。结果 :溶栓后 A、β及 A·β值均显著增加 (P<0 .0 5～ 0 .0 1) ,而溶栓失败者 A仍≤ 2分。结论 :IMCE为 AMI的诊断及床旁评价溶栓疗效提供了简便、安全和可靠的新途径更多还原

【Abstract】 Objective:To study the reliability of intravenous myocardial contrast echocardiography(IMCE)in assessing myocardial reperfusion in acute myocardial infarction(AMI)using intravenously infused levovist.Methods:IMCE was performed in 11 AMI patients before and after thrombolytic therapy.The power Doppler signals of the myocardial segments were analyzed and the time amplitude curves were plotted during levovist infusion and incremental triggering.The maximal amplitude score(A),the mean ascending slope of the curve(β)and the product of A·β were measured.Results:There was a significant increase in A、β and A·β after thrombolysis( P <0 05～0 01),while in no reperfusion patients,A was still below 2 score.Conclusion:IMCE offers a simple and reliable approach to the non invasive assessment of thrombolytic therapy in patients with AMI.更多还原