摘要
目的探讨经静脉心肌超声造影(IMCE)对急性心肌梗死患者行冠状动脉内支架植入(ISI)术后再灌注的评价。方法对24例急性心肌梗死患者于ISI术前后分别行IMCE检查,测量平台期心肌显像增大强度(A)、曲线上升平均斜率(B)及A与β之积在手术前后的变化。随访3个月,再次测量上述各项指标,评价心肌再灌注情况。结果手术后及随访期检测相关心肌节段的A、β及A·β均较术前显著增加(P＜0.01),其中术后β值的变化幅度最大,随访3个月后A值变化幅度增大,说明血管再通后先有灌注速度加快,再有灌注量增加。结论IMCE是床旁无创评估ISI疗效的新方法。
Objective To evaluate the reperfusion of intravenous myocardial contrast echocardiography（IMCE） in patients with acute myocardial infarction （AMI） using intravenously infused SonoVue before and after intracoronary stent implantation （ISI）. Methods IMCE was performed in 24 AMI patients before and after ISI. The myocardial maximal amplitude score （A） at plateau phase, the mean ascending slope of the curve （β） and the product of A · β were measured. All the patients were followed up for 3 months, and the above-mentioned indexes were measured at 3 months after procedure. Results After ISI, there was a significant increase in A, β and product of A ·β of the ISI-related myocardial segments （P 〈 0.01 ）, with the maximum increase in βvalue. After 3-month follow-up, A value presented the maximum increase, which showed that after coronary revascularization the reperfusion speed increased first, and the quantity of reperfusion increased next. Conclusions IMCE offers a simple and reliable bed-side approach to the noninvasive assessment of ISI.
出处
《中华医学超声杂志（电子版）》
2005年第6期334-336,共3页
Chinese Journal of Medical Ultrasound(Electronic Edition)
