超声检查对椎动脉狭窄血管内支架成形术的价值

目的 评价超声检查对椎动脉狭窄血管内支架成形术的应用价值.方法 对33例椎动脉狭窄血管内支架成形术后的患者进行超声检查,主要观察支架的位置、管径和形态,支架处及远端的血流充盈情况和血流速度,支架内有无血栓及再狭窄等情况,与术前检查对比来判断其疗效.结果 支架成形术后,支架处血管狭窄均得到改善,管腔较术前增宽,血流速度降低,阻力指数降低.结论 彩色多普勒超声检查无创、简便,对血管狭窄程度的判断准确性高,是椎动脉狭窄血管内支架成形术后疗效评价和随访的首选检查方法.

Value of endovascular therapy of vertebral arterial stenosis with endovascula stent by ultrasonography

Objective To evaluate the role of ultrasound in the endovascular therapy of vertebral artery stenosis with stents. Methods A total of 33 patients with vertebral artery stenosis were invested by ultrasound after stent treatment. The ef- fectiveness of stent treatment was evaluated and compared with ultrasound before stent treatment, according to measuring the lo- cation of stents, diameter, morphology, velocity inside and at distant place of stents, thrombosis and restenoses. Results Symptomatic atherosclerotic stenosis in original segment of vertebral artery was satisfied after stent treatment. The diameter of stenotic artery increased. The velocity and RI decreased. Conclusion The ultrasound is the method of first choice in assessing the therapeutic effect of vertebral artery with stents and follow-up in the long term.