论文部分内容阅读
目的探讨枕叶脑卒中患者视觉诱发电位（VEP）和脑血流量的关系。方法对50例枕叶脑卒中患者和50例正常人进行视觉诱发电位（VEP）检查，同时测定脑血流量。结果脑卒中组VEP异常35例（70％），对照组异常4例（8％）。脑卒中组枕叶脑血流量平均42．7±6ml100（－1）／min，对照组49．6±7．6ml100（－1）／min，VEP异常与枕叶脑血流量呈负相关，伴有视野缺损VEP异常率高。结论VEP对诊断中枢损伤价值较大，尤其伴有视野缺损者意义尤大，VEP异常与枕叶脑血流量呈负相关。
Objective To investigate the relationship between visual evoked potential (VEP) and cerebral blood flow in patients with occipital lobe stroke. Methods Visual evoked potentials (VEP) were measured in 50 patients with occipital lobe stroke and 50 normal controls, and cerebral blood flow was measured at the same time. Results Stroke group had 35 cases (70%) of abnormal VEP and 4 cases (8%) of abnormal group. Cerebral stroke in the occipital lobe average blood flow 42.7 ± 6ml100 (-1) / min, the control group 49.6 ± 7.6ml100 (-1) / min, VEP abnormalities and occipital lobe cerebral blood flow was negatively correlated, with A visual field defect VEP abnormal rate. Conclusion VEP is more valuable for diagnosis of central nervous system injury, especially in those with visual field defect. VEP abnormality is negatively correlated with occipital lobe cerebral blood flow.