论文部分内容阅读
目的：研究ＴＣＤ评估脑出血患者脑血流量的价值。方法：随机选择１１０例发病３天内，头颅ＣＴ或ＭＲＩ证实的脑出血患者同时做ＴＣＤ与１３３Ｘｅ吸入法测定脑血流量（ｒＣＢＦ）。结果：８３例患者ＴＣＤ表现为病灶供血区脑动脉收缩期峰值（Ｖｓ）和平均血流速度（Ｖｍ）增加，占７５５％，血肿≤２５ｍｌ者Ｖｓ、Ｖｍ与ｒＣＢＦ下降呈负相关（ｒ＝０７１和０６５，Ｐ＜００１）。１２例患者ＴＣＤ正常，ｒＣＢＦ下降９例，占７５％。１５例患者Ｖｓ及Ｖｍ降低，ｒＣＢＦ下降１４例，占９３３％，Ｖｓ、Ｖｍ与ｒＣＢＦ下降无相关性。脑出血量大者ＴＣＤ、ｒＣＢＦ异常率高。结论：ＴＣＤ可作为评价脑出血患者ｒＣＢＦ的有效手段，对血肿≤２５ｍｌ者意义更大。
Objective: To study the value of TCD in evaluating cerebral blood flow in patients with cerebral hemorrhage. Methods: Cerebral blood flow (rCBF) was measured by TCD and 133Xe inhalation simultaneously in 110 patients with cerebral hemorrhage confirmed by skull CT or MRI within 3 days of onset. Results: The TCD of 83 patients showed that the Vs and Vm of cerebral arteries increased, accounting for 75.5%. The Vs and Vm decreased negatively (r = 071 and 065, P <001). Twelve patients with normal TCD, rCBF decreased in 9 cases, accounting for 75%. Vs and Vm decreased in 15 patients. There were 14 cases decreased in rCBF, accounting for 933%. There was no correlation between Vs, Vm and rCBF decline. Large amount of cerebral hemorrhage TCD, rCBF abnormal rate. Conclusion: TCD can be used as an effective method to evaluate rCBF in patients with cerebral hemorrhage.