正常青年人群脑磁共振检查中常见变异及病变发生率

Incidence of common variant and disease in young adult brain by using magnetic resonance imaging

目的观察对正常青年志愿者脑组织行MRI平扫检查检出常见变异及病变的发生率。方法使用SIEMENSTrio Tim 3.0T MRI扫描仪对60例正常青年人行MRI平扫,T1WI、T2WI序列,必要时加扫FLAIR或DWI。结果在男女各30例志愿者中发现蛛网膜下腔囊肿4例(男3例,女1例),发生部位分别为中颅凹2例,枕大池2例;透明隔囊肿1例;脱髓鞘改变4例(男3例,女1例)。结论蛛网膜下腔囊肿在正常人群中有一定发生率,通常男性多于女性,透明隔囊肿也有少量发生率,缺血性脱髓鞘改变在无神经系统临床表现正常青年人群中并不罕见。

Objective To study incidence of common variant and disease in normal young adult volunteer brain by MRI. Methods 60 normal young adults were examined by magnetic resonance general scan at SIEMENS Trio Tim 3.0T MRI （T1WI, TzWI）. To scan FLAIR or DWI in needing. Results Among 60 normal young adults （male 30 cases, female 30 cas- es）, intracranial arachnoid cysts was 4 cases, male 3 cases and female 1 case, location middle cranial fossa was 2 cases and posterior fossa was 2 cases; septi pellucidi was 1 case; demyelinating disease was 4 cases, male 3 cases and female I case. Conclusion Intracranial arachnoid cysts has any incidence; incidence of intracranial arachnoid cysts is male finding more than female; septi pellucidi has a little incidence; demyelinating disease is not rare in normal young adult volunteer brain.