摘要
目的 通过对脑血流 (r CBF) SPECT检查 ,探讨短暂性脑缺血发作患者的局部脑血流变化。方法 对 2 9例短暂性脑缺血发作患者在发病 6～ 4 8h内同时行头部 CT及 SPECT检查 ,并于发病 4 8～ 72 h后再次复查头部 CT。另外对 30例健康志愿者进行头部 CT及 SPECT检查。结果 SPECT检出阳性率为 72 .4 % (2 1/ 2 9)。且神经功能缺损越重 ,r CBF的灌注缺损就越低。结论 在患者尚未发生脑组织结构异常的代谢和功能性损伤时 ,SPECT可灵敏的探测到损伤局部的脑血流变化 ,对估计患者的预后 ,有一定的指导意义。
Objective To study the dynamic changes of rCBF in patients with transient ischemic attack by SPECT.Methods Conduct SPECT and CT studies in 29 cases in 6~48 hours after the attack and the second examine CT after 48~72 hours. Moreover,conduct SPECT and CT studies in 30 healthy cases.Results The positive rate of SPECT was 72.4%(21/29).The more serious the level of the attack was,the lower the rCBF was.Conclusion The data shows that 99m Tc ECD SPECT can easily demonstrate a metabolic and functional lesions without structural abnormalities.It can detect cerebral blood flow change of intracerebral foci without detectable change by traditional morphological imaging.It has the importance to the patiente prognosis.
出处
《中风与神经疾病杂志》
CAS
CSCD
北大核心
2003年第4期362-363,共2页
Journal of Apoplexy and Nervous Diseases
