探讨一侧大脑中动脉高密度征在CT诊断早期脑梗死的价值

Exploring the value of unilateral hyperdense middle cerebral artery sign(HMCAS) in the diagnosis of early cerebral infarction with CT

目的旨在提高对一侧大脑中动脉高密度征的认识,探讨其在早期脑梗死的CT诊断价值。方法回顾分析12例大脑中动脉高密度征的脑梗死患者,男性8例,女性4例,年龄44-80岁,平均59岁,所有患者发病1-6小时内行CT扫描及发病24后CT复查。结果12例患者均发现有一侧大脑中动脉高密度征,复查CT,该侧大脑中动脉供血区出现大片状低密度灶,5例大脑中动脉高密度征消失。结论一侧大脑中动脉高密度征,对CT诊断早期脑梗死有重要价值。

Objective To explore the value of unilateral HMCAS in the diagnosis of early cerebral infarction with CT. Methods 12 cases that had early cerebral infarction with unilateral HMCAS were analyzed retrospectively, of which 8 cases were male and 4 cases female （aged 44 to 80, mean age 59 years）. All cases were examined with CT within 1-6 hours after the onset of the disease, and another CT scanning after 24 hours. Results The CT features of all cases were reviewed. It was found that unilateral HMCAS existed in the first CT scanning.All cases were followed-up by CT.A big area of low density in the region supplied by MCA was shown, unilateral HMCAS displayed in 5 cases. Conclusion In addition to the symptoms and signs of early cerebral infarction, unilateral HMCAS is of great value to the diagnosis of early cerebral infarction with CT.