›› 2009, Vol. 4 ›› Issue (12): 969-973.

• 论著 • 上一篇    下一篇

磁共振灌注成像-弥散成像不匹配对指导超时间窗急性缺血性卒中患者溶栓的价值

李欣,王雅琼,邱诗雄   

  1. 上海市上海市杨浦区中心医院神经内科
  • 收稿日期:2009-06-08 修回日期:2009-05-08 出版日期:2009-12-20 发布日期:2009-12-20
  • 通讯作者: 王雅琼

The Value of PWI-DWI Mismatch to Guide Thrombolytic Therapy with Broadened Therapeutic Window for Cerebral Infarction

LI Xin, WANG Ya-Qiong, QIU Shi-Xiong.   

  • Received:2009-06-08 Revised:2009-05-08 Online:2009-12-20 Published:2009-12-20
  • Contact: WANG Ya-Qiong

摘要: 目的 探讨磁共振灌注成像-弥散成像(perfusion weighted imaging-diffusion weighted imaging,PWI-DWI)不匹配对指导超时间窗(>6h)的急性缺血性卒中患者溶栓的价值。方法 选择在发病12h内完成磁共振检查,且(PWI-DWI)/DWI×100%>30%的40例急性缺血性卒中患者,分为溶栓组和对照组,溶栓组给予重组组织型纤溶酶原激活剂(recombinant tissue plasminogen activator,rt-PA)0.6~0.9mg/kg静脉溶栓治疗,对照组常规治疗。两组患者在溶栓前、溶栓后1周、2周、3个月分别行美国国立卫生院卒中量表(National Institutes of Health Stroke Scale,NIHSS)评分,溶栓前、溶栓后2周、3个月分别行日常生活能力量表(activities of daily living,ADL)评分。结果 溶栓组在溶栓后1周、2周、3个月NIHSS评分均较对照组降低(P<0.01);在2周和3个月,溶栓组ADL评分较对照组明显升高(P<0.01)。结论 在PWI>DWI影像学模式指导下,适当延长急性缺血性卒中的溶栓时间窗具有可行性。

关键词: 磁共振成像; 弥散; 组织型纤溶酶原激活物; 时间

Abstract: Objective To explore the value of magnetic resonance perfusion-weighted imaging(PWI) -diffusion-weighted imaging(DWI) mismatch to guide thrombolytic therapy beyond the time window(>6h) in patients with acute cerebral infarcts.Methods 40 patients with acute cerebral infarcts which were imaged by magnetic resonance and(PWI-DWI)/DWI×100%>30% within 12 hours after symptom onset were divided into thromobolytic group and control group. The patients in thromobolytic group were treated with intravenous rt-PA(0.6-0.9mg/kg), the controls were received common therapy. The two groups were scored with National Institutes of Health Stroke Scale(NIHSS)/Activities of Daily Living(ADL) score respectively at pre-thrombolysis, 1W, 2W and 3M after thrombolysis.Results The NIHSS score of the thromobolytic group at 1W, 2W and 3M after thrombolysis is lower than that of the control group(P<0.01), the ADL score of the thromobolytic group at 2W and 3M after thrombolysis is higher than that of the control group significantly(P<0.01).Conclusion Guided by PWI>DWI image, extending the time window for thrombolytic treatment of acute ischemic stroke is beneficial and feasible.

Key words: Diffusion magnetic resonance imaging; Tissue plasminogen activator; Thromobolytic therapy; Time