老年人急性缺血性脑血管病的SPECT脑局部血流灌注显像与磁共振的对比研究

The Comparison of rCBF and MRI in the Senile Patients with Acute Ischemic Cerebrovascular Disease

目的 研究老年人脑缺血性病变 (SICVD)的特点 ,分析SPECT脑局部血流灌注显像 (rCBF)对SICVD的诊断价值。方法 36例SICVD患者均接受rCBF及脑MRI(部分行MRA)检查 ,比较rCBF与MRI的检查结果。结果 ①与MRI相比 ,rCBF更敏感地显示大脑各叶皮质的缺血性病变 ,较好地显示基底节核团的病变 ,对小脑、脑干及皮层下白质、内、外囊病变显示不良。老年人颞叶缺血比较多见。②rCBF因可敏感地显示枕叶病变而对椎基底动脉系统缺血性病变 (VBID)有一定的诊断价值 ,与MRI结合 ,为VBID的诊断提供更多的客观依据。③部分患者存在缺血性病变区域的相应血管病变。结论 rCBF与MRI结合 。

Objective To study the characteristics of senile patients with acute ischemic cerebral vascular disease(SICVD),analysis the value of SPECT brain perfusion (rCBF) in the diagnosis of SICVD. Methods 36 SICVD patients took the test of rCBF and cerebral MRI (a part of them did MRA), the result were compared. Results ①Compared with MRI,on showing SICVD,rCBF was more sensitive in the area of cerebral cortex,sensitive in the basal ganglia,unsensitive in cerebellum, brainstem,subcortex white substance and internal and external capsules. The SICVD in temperal lobe was popular in senile patients. ②Combined with MRI,rCBF help to improve the diagnosis of vertebral\|basilar artery ischemia (VBI) by reflecting occipital lobe SICVD sensitively. ③Corresponding cerebrovascular lesions were seen in the areas of SICVD in some patients. Conclusion Correlation of rCBF and MRI could disclose the SICVD more completely. [