Relationship Between The OCSP Types And Neuroradiological And Cerebrovascular Changes In Ischemic Stroke

PURPOSE The aim of this study was to assess extra-and intracranial arterial stenosis and stroke leisions in stroke patients and to analyse the relationship between arterial stenosis , Radiological leisions and the Oxfordshire Community Stroke Project (OCSP) classification.MATERIALS AND METHODS We retrospectively collected data on 227 stoke patients admitted to jilin university from June 2004 to November 2008.All of the patients have taken DSA and CT or MRI Examination.We categorized the whole 227 patients to four types according to the Oxfordshire Community Stroke Project (OCSP) classification: (1) Total anterior circulation infarcts (TACI); (2) Partial Anterior Circulation Infarcts(PACI); (3) Lacunar Cerebral Infarction(LACI); (4) Posterior circulation infarcts (POCI). We categorized the whole 227 patients to four types according to the neuroradiological change: (1) cortical infarction (CO); (2) Low flow infarction (LFI); (3) Small subcortical infarction (SSI); (4) Posterior circulation infarction (PCI). We categorized the whole 227 patients to four types according to the cerebrovasculer change: (1) Internal Carotid Artery(ICA); (2) Middle Cerebral Artery (MCA); (3) Vertebral artery and Basilar Artery(VA+BA); (4) Subclavian Artery (SA). At last we analyse the relationship between the Oxfordshire Community Stroke Project (OCSP) classification,neuroradiological changes and the cerebrovascular changes.RESULTS: (1) Of all 227 ischemic stroke patients, 47% were partial anterior circulation infarctions (PACI); 31% were posterior circulation infarctions (POCI); 13% were total anterior circulation infarctions (TACI); and 9% were lacunar infarctions (LACI). (2) Of all 227 ischemic stroke patients, 32.16% belong to CO; 22.91% belong to SSI; 22.47% of belong to SSI; 22.47% belong to PCI. (3) Of all 227 ischemic stroke patients, 33.04% belong to ICA abnormalities; 28.19% belong to MCA; 24.23% belong to VA or BA; 13.60% belong to SA. (4) The consistency of OCSP classification and Neuroradiological change is 83.7% of TACI+PACI,92.31% of POCI,81.94% of LACI.(5) The consistency of OCSP classification and cerebroradiological change is 87.30% of anterior circulation and 86.90% of posterior circulation;CONCLUSION OCSP classification, neuroradiological change classification and cerebroradiological change classification siginificantly correlated.