普通CT在脑梗死超急性期的诊断价值

目的探讨普通CT对超急性期脑梗死的诊断价值。方法回顾性分析300例在发病后1～6h内应用常规CT扫描患者的临床表现和CT征象,所有病例均在发病24h后复查螺旋CT或MR证实为脑梗死患者。结果300例中出现异常征象者共有202例,超急性期脑梗死CT征象包括:脑实质局部密度轻度减低者126例,局部脑肿胀、邻近脑沟变浅、脑室变形变窄者52例,大脑中动脉密度增高者94例,豆状核密度减低108例,脑岛、最外囊和屏状核密度减低、灰白质界线模糊87例。结论超急性期脑梗死常规CT虽然征象轻微,但结合临床,具有一定的价值。

Diagnostic value of conventional CT in patients with hyperacute cerebral infarction

Objective To discuss the diagnostic value of conventional CT in hyperacute cerebral infarction. Methods Three hundred cases of hyperacute cerebral infarction which accepted for examination by the conventional CT within 1-6 hours and proved by spiral CT or MR reexamination after 24 hours were retrospectively analyzed,including clinical manifestations and CT symptoms. Results The CT symptoms of hyperacute cerebral infarction were found in 202 cases including the density of cerebral parenchyma being lower in 126 cases,local brain swelling or cerebral sulci being shallow or ventricles being narrow by the pressure in 52 cases,hyperdense middle cerebral artery sign (HMCAS) in 94 cases,lentiform nucleus being lower 108 cases,lobus insulars,capsule extrema and claustra being lower and their interface of white and gray matters being vague in 87 cases. Conclusion Although the conventional CT symptoms of hyperacute cerebral infarction are light,but they have definitive value combining clinical manifestations.