China is entering into an aging society, and the incidence of hypertension and atherosclerosis were increased year by year. The incidence of transient ischemic attack (TIA) patients with carotid stenosis increased year by year. Carotid artery stenosis or occlusion can cause reduction of local brain tissue perfusion resulting from TIA. CT cerebral perfusion imaging and SPECT could detect earlier the chronic hyper fusion of carotid stenosis TIA, forecast risk coefficient and intervention and prevent the occurrence of cerebral infarction, to evaluate effect of carotid endarterectomy and carotid s carotid artery stenting. It is very important to monitor cerebral hemodynamic changes. The technology has the features of blood infusion situation, advantages, curative effect evaluation and development trend in carotid stenosis TIA reviewed by CT perfusion imaging and SPECT.

Objective: To explore the relationship between plasma level of B-type natriuretic peptide (BNP) and short term prognosis in patients of sudden cardiac arrest with successful cardiopulmonary resuscitation (CPR). Methods:A total of 60 relevant patients were divided into 3 groups based on their plasma levels of BNP. Group A, the patients with plasma level of BNP < 200 pg/ml at immediately, 3 hours and 12-24 hours after CPR,n=16. Group B, the patients with consistently increased BNP and at 3 hours, 12-24 hours after CPR and the BNP level > 200 pg/ml , n=22. Group C, the patients with obviously increased BNP at 3 hours after CPR, while at 12-24 hours after CPR, BNP level decreased to lower than 3 hours level,n=22. All patients were followed-up for 6 months to compare the mortality incidence among different groups. Results: There was no patient died in Group A, the mortality incidence in Group B was 11 and in Group C was 3. The 6 months survival rate in Group A was higher than that in Group B (χ2 = 11.337,P=0.001), the survival rates were similar between Group A and Group C (χ2 = 2.330,P=0.127), and the survival rate in Group B was lower than that in Group C (χ2=7.435,P= 0.006). Conclusion: Consistently increased plasma level of BNP may imply heart failure in patients of sudden cardiac arrest with successful CPR, those patients could have poor short term prognosis. It is critical to improve the cardiac function and increase the important organ infusion to make better recent clinical prognosis.