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本研究应用P_(300)和SPECT观察了30例梗塞性脑血管病人,分别进行P_(300)潜伏期,脑血流显像,rCBF比值测定,探讨两者之间的依存关系,以及在脑梗塞中的应用价值。研究表明,在梗塞性脑血管病P_(300)测试的内源成分P_(300)PL即显示出有意义的变化,与对照组比较PL明显延长(P<0.001)。SPECT脑显像则显示出梗塞区及其周围放射性稀疏区,病变范围大于XCT,rCBF比值小于0.9。经统计学处理显示脑血流量与PL延长呈负相关(P<0.001)。即rCBF值越低PL延长越明显。反映了脑梗塞患者认知功能障碍与CBF的关系。因此P_(300)PL是评价脑功能状态和预后监测的指标。
In this study, P300 and SPECT were used to observe 30 patients with infarction cerebrovascular disease, respectively, P300 latent period, cerebral blood flow imaging, rCBF ratio determination to explore the relationship between the two, as well as in cerebral infarction In the application value. Studies have shown that there is a significant change in P 300 PL in the P 300 test of infarction cerebrovascular disease, which is significantly prolonged compared with the control group (P <0.001). SPECT brain imaging showed the infarct area and surrounding radioactive sparse area, the lesion is greater than the XCT, rCBF ratio is less than 0.9. Statistically, there was a negative correlation between cerebral blood flow and PL prolongation (P <0.001). That is, the lower the rCBF value, the more obvious the extension of PL. Reflects the relationship between cognitive impairment and CBF in patients with cerebral infarction. Therefore P_ (300) PL is to evaluate the status of brain function and prognostic indicators.