Analytical Study On Head And Neck Vascular Imaging With256Layer Spiral CT In Patients With Acute Cerebral Infarction

Objective Based on300cases of patients with acute cerebral infarction,256layerspiral CT angiography (CTA) in head and neck region analysis results, and to OCSPclassification of patients with acute cerebral infarction, application layer256spiral CTAcheck accurately assess cerebral infarction in patients with head and neck vascularstenosis or occlusion, degree of stenosis and plaque lesions, provide the basis for theetiological diagnosis of patients with acute cerebral infarction.Methods1. Cerebral infarction group:300patients with acute cerebral infarction fromJan.2012to June2013in Hebei United University Affiliated Hospital neurology hospitalclinical, duration is less than7days, cerebral infarction diagnosis accord with theChinese medical association in1995the fourth cerebrovascular disease diagnosisstandard of the development of the meeting, and confirmed by head CT or head MRI.According to Oxfordshire Community Stork Project(OCSP) classification criterion, theacute cerebral infarction patients were divided into total anterior circulation infarction(TACI) group(37cases)、partial anterior circulation infarction(PACI)group(109cases)、posterior circulation infraction (POCI) group(66cases) and lacunar infarction(LACI)group (88cases); Control group:Choice in the same period in hospital than60casespatients with cerebral infarction, confirmed by craniocerebral CT or MRI infarcts.2.Check method: All of the patients by computed tomography (CT) arterial angiographywithin1week after the onset, using Philips256layer spiral CT, the anterior elbow veinswith double cylinder of high pressure syringe injection nonionic iodine contrast agent(lodine fo alcohol350~370mg/ml) and saline solution, injection volume60ml, injectionflow rate of4ml/s, started15s delay after drug monitoring, when the concentration ofcontrast medium in target blood vessels to peak start scanning. Edge of scanning range isthe edge of aortic arch to parietal, from foot lateral side scan.3. Statistical method:Alldata were analyzed with SPSS13.0software.Results1. Cerebral infarction group than the control group, the marked increase inincidence of brain artery stenosis, and the degree of stenosis is more serious(P<0.05).2.Vascular stenosis or occlusion in patients with acute cerebral infarction location, startingwith ICA, intracranial vertebral artery segment, the ICA sponge DouDuan see at most.3.Acute cerebral infarction responsibility artery high detection rate（82.8%）, with head and neck（Intracranial extracranial series）brain artery stenosis or occlusion for at the sametime.4. TACI group and POCI brain artery stenosis or occlusion rate is higher thanLACI group(P<0.05).5. Stenosis or occlusion in patients with acute cerebral infarction ishead and neck artery involvement at the same time, POCI group affected the highestincidence (P<0.05).6. OCSP classification responsibility artery of cerebral infarctionpatients was comparative analysis of various subtypes responsibility artery detection rate,there was no significant difference between groups(P＞0.05).7. OCSP each subtype ofresponsibility artery is series external intracranial artery stenosis or occlusion(P<0.05),POCI group has the highest incidence(P<0.05).8. The responsibility artery of TACIgroup for severe stenosis and occlusion, POCI group mostly mild stenosis and occlusion,PACI, LACI group mostly mild and moderate stenosis, TACI group was significantlyhigher than the other three groups(P<0.05).9. TACI group responsibility caused byartery stenosis is more non-calcified plaque and mixed plaques, TACI detection rate ishigher than POCI group (P<0.05); POCI, LACI group responsibility caused by arterystenosis are calcified plaque, no statistical difference between the two groups(P＞0.05).Conclusion1. Vascular stenosis or occlusion in patients with acute cerebral infarctionlocation, the most common is starting with ICA, intracranial vertebral artery segment,intracavernous internal carotid artery.2. Head and neck(intracranial outside)brain arterystenosis or occlusion in series is the important causes of acute cerebral infarction, themost common is POCI.