The Value Of HVS And ASPECTS Score In Clinical Prognosis Of Cerebral Infarction

Objective:Objective to investigate the imaging features and clinical value of MRI sequences of fluid-attenuated inversion recovery(FLAIR)imaging hyperintense vessel signs(HVS)and ASPECTS score on diagnosis of cerebral infarction in patients with middle cerebral artery.Method:The retrospective analysis of patients with acute and subacute cerebral artery infarction in 90 cases diagnosed by MRI examination with clinical manifestations.Collecting the hypertension,hyperlipidemia and other general clinical data of these patients,DWI-ASPECTS scores and NIHSS scores of different application time between distal HVS group and without distal HVS group.73 Non cerebral infarction patients were enrolled to observe whether HVS appeared in the same period.Results:1.There were 48 patients in distal HVS group,and 42 patients in without distal HVS group.There was no significant difference in general clinical situation between the two groups(P>0.05).2.The mean infarction size were(2.292±1.383)lobes in distal HVS group and(2.881±1.234)lobes in without distal HVS group,it was significantly different between two groups(P<0.05).The DWI-ASPECTS score less than 6 points of the two groups accounted for 35.4% and 71.4%,the difference was statistically significant(P<0.05).3.In the distal HVS group,the scores of the first day NIHSS、10-14 day NIHSS and early neurological recovery were lower than those of the distal HVS group,it was significantly different between two groups(P<0.05).4.77 patients underwent MRA examination in 90 cases,42 patients with distal HVS group,arterial occlusion accounted for 71.4%,and the stenosis accounted for 28.6%.35 patients without distal HVS group,arterial occlusion accounted for 37.1%,stenosis accounted for 40%,normal accounted for 22.9%,the difference between the two groups was statistically significant(P < 0.05).5.73 cases of non cerebral infarction patients,T2 FLAIR sequence did not appear HVS sign.Conclusion:1.The distal HVS signs can indicate vascular occlusion or severe stenosis;2.Distal HVS features may suggest the presence of good collateral circulation;3.The assessment method of the HVS as a special kind of collateral circulation,can be used as one of the prognostic indicators of judgment.