42例老年多发性脑梗塞CT扫描征象特征及诊断价值探讨

目的 探讨老年多发性脑梗塞CT扫描征象特征及诊断价值.方法 选取我院收治的42例老年多发性脑梗塞患者的CT数据,分析多发性脑梗塞的CT特征.结果 CT检查中共发现病灶86个,诊断正确率为87.76％.发病24h之内CT扫描示脑缺血区出现脑水肿,局部脑沟消失,可见低密度灶、动脉致密征、岛带征;豆状核密度减低,边缘模糊.发...

Imaging Features and Diagnostic Value of CT Scan of 42 Elderly Patients with Multiple Cerebral Infarction

Objective To explore the imaging features and diagnostic value of CT scan for elderly patients with multiple cerebral infarction.Methods The CT data of 42 elderly patients with multiple cerebral infarctions we re selected to analyze the CT features of multiple ce re b ral infarctions.Results 86 lesions were found in CT examination,and the diagnostic accuracy rate was 87.76%.Within 24 hours after attack,CT scan showed cerebral edema in the cerebral ischemic area,showed that the local sulci disappeared,and showed low-density lesions,dense artery sign and island signs.The density of lenticular nucleus reduced and the edges were blurred.Within 1 week after attack,the infarct lesions were seen in low-density areas,and the lesions located in the cerebral cortex were in the same distribution as the cerebrovascular innervation areas.The edges can be clear or fuzzy,and the internal density can be uneven,which can produce different degrees of space-occupying effects.2 weeks after atta ck,the CT scan showed that the necrotic tissue in the infa rct area was clea red by the phagocyte,forming low-density cystic cavity with clear and sharp edge without enhancement after enhanced scan.The ventricles and sulci of the affected side were enla rged,and the midline structu re shifted to the affected side.Condution CT is of great value in the diagnosis and differential diagnosis of senile multiple cerebral infa rction.In clinic,CT signs ca n be comprehensively analyzed,and the clinical features of patients ca n be combined to diagnose and treat multiple cerebral infa rction.