| 张雄伟,赵蕴霞,范秀玉.急性脑出血的经颅多普勒超声研究[J].中国医学影像技术,1998,14(1):35~37 |
| 急性脑出血的经颅多普勒超声研究 |
| Study of Transcranial Doppler Sonography in Acute Intracerebral Hemorrhage |
| 投稿时间：1997-09-29 |
| DOI： |
| 中文关键词: 经颅多普勒超声 脑出血 血流动力学 |
| 英文关键词:Transcranial Doppler sonography Intracerebral hemorrhage Hemodynamics |
| 基金项目: |
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| 中文摘要: |
| 目的：评价急性脑出血的脑血流动力学。方法：应用经颅多普勒超声(TCD)对40例急性脑出血病人测量了发病后48小时内的大脑中动脉平均血流速(Vm)及脉动指数(PI).根据CT测定脑出血量并与Vm及PI进行比较。结果：TCD异常率75%, 异常表现为PI增高(67.5%), Vm减慢(32.5%)和Vm增快(5%).出血量>25ml时出血侧PI增高, Vm减低。与小量出血比较, 大量出血组(>25ml, 14例)的PI增高显着(P<0.005).结论：研究发现大量脑出血可发生非对称的脑血流动力学改变, 反映这种非对称性PI较Vm更可靠。 |
| 英文摘要: |
| Objective:To evaluate the intracranial hemodynamics of acute intracerebral hemorrhage.Method:Transcranial Doppler sonography (TCD) was used to detect mean flow velocity (Vm) and pulsatility index (PI) of middle cerebral artery within 48 hours of onset in 40 patients with acute intracerebral homorrhage.Hematoma volumes was calculated from admission CT scans and was compared with Vm and PI.Results:Abnormal manifestation (30/40,75%) were that PI elevated (67.5%),Vm depressed (32.5%) and Vm elevated (5%).Ipsilateral PI were elevated and Vm depressed when intracerebral hemorrhage volumes exceeded 25 ml. Compared with patients with small hemorrhages,those with large hemorrhage (>25ml,N=14) had significantly higher PI (P<0.005).Conclusion:This study found asymmetry of intracranial hemodynamics assessed by TCD occurs when intracerebral hemorrhage volumes exceed 25 ml.Alterations of PI reflect this more reliably than Vm. |
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