Objective:To evaluate the prognosis of patients with ischemic stroke by analyzing nuclear magnetic resonance high resolution intracranial angiography and perfusion weighted imaging (PWI). Methods:120 cases of ischemic stroke patients were randomly selected who received and confirmed in our hospital from June 2015 to June 2017. They were randomly divided into the control group and the observation group, each with 60 cases. 2 groups of patients were treated with oral Aspirin Enteric-coated Tablets and intravenous injection of Ligustrazine. The patients with increased intracranial pressure were given intravenous infusion of 20% mannitol 250 ml·(8 h) -1, and they were treated continuously for one week. The patients in the control group were analyzed by nuclear magnetic resonance high resolution intracranial artery, and the observation group was analyzed by nuclear magnetic resonance high resolution intracranial artery analysis combined with PWI. Before treatment and 7 d after treatment, the mean transit time (rMTT), mean cerebral blood volume (rCBV), mean peak time (rPT), mean cerebral blood flow (rCBF) and ischemic penumbra (IP) of the patients in the observation group were recorded in detail, and the volume of PWI in the observation group was recorded. The high resolution nuclear magnetic resonance images of the 2 groups were compared. 3 months later, the adverse reactions of the 2 groups were counted. Results:Before treatment, there was no significant difference between NIHSS scores and improvement in quality of life and the volume of IP in 2 groups (P>0.05). after treatment, the NIHSS score and the volume of IP decreased, and the Barthel index increased, the difference was statistically significant (P<0.05), but there was no significant difference in the NIHSS score, Barthel index and IP volume between the 2 groups (P>0.05). The blood flow parameters rMTT and rPT of the observation group before treatment were significantly higher than those after treatment, and the rCBV and rCBF were significantly lower than those after treatment (P<0.05). The incidence of adverse reaction in the observation group was 3.33% (2/60), which was lower than 10%(6/60) in the control group (P< 0.05). Conclusion:high resolution nuclear magnetic resonance analysis combined with PWI is useful for assessing ischemic stroke, it can clearly show the micro blood circulation and reduce the recurrence rate. So it is worthy of clinical popularization.
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