CT扫描评估颅内脑脊液含量

Medical Imaging Evaluation of Intracranial Volume of Cerebrospinal Fluid in Different Gender

目的：利用CT数据和计算机技术对正常中国人颅内脑脊液（CFS）含量进行评估。方法：181例正常人按年龄进行分组,A组14岁以下（17例）、B组14岁~20岁（24例）、C组21~30岁（34例）、D组31~40岁（33例）、E组41~50岁（38例）、F组51~60岁（25例）及G组61岁以上（10例）7组,采用CT扫描仅对眶下缘与外耳孔连线、眼球正中与外耳孔连线进行平扫,获得不同年龄组男性和女性颅内CFS含量,比较差异。结果：A组、C组、F组中男性与女性颅内CFS含量比较,差异无统计学差异（P〉0.05）;B组、D组、E组、G组中男性与女性颅内CFS含量比较,差异有统计学差异（P〈0.05）;各组颅腔内CFS含量平均值男性均大于女性,且随着年龄增长,颅腔内CFS含量总体有增多的趋势。结论：颅腔内CFS含量随年龄增长而增长,同一年龄组中,男女性别之间颅腔内CFS体积存在差异。

Objective： To study the intracranial volume of cerebrospinal fluid （CSF） of healthy Chi- nese people of different gender and different age by using CT and computer technique. Methods： A to- tal of 181 cases of normal healthy people of different age were divided into 7groups： group A （under 14 years old,17 cases）, group B（14 to 20 years old, 24 cases）, group C （21 to 30 years old, 34 ca- ses）, group D （31 to 40 years old, 33 cases）, group E（41 to 50 years old, 38 cases）, group F（51 to 60 years old, 25 cases） and group G（over 61 years old, 10 cases）. CT was adopted to conduct par- allel scanning（ the connection from infraorbital rim to outer ear hole, and the connection from ocular median outer ear hole as scanning baseline） , and CSF volume of different age and different gender was measured and differences were compared and analyzed. Results： The differences of intracranial CSF volume between males and females in Group A, group C and group F were not significantly statistical （ P 〉 0.05 ）. The differences of intracranial CSF volume between males and females in Group B, group D, group E and group G were significantly statistical （P 〈 0.05 ）. The males＇average intracranial CSF volume in each group was larger than that of females. With age, intracrania! CSF volume tended to in- crease. Conclusion： The CSF volume increases with age. In the same age group, the CSF volume of cranial cavity is significantly different in different gender, which can guide us to make the strategy of clinical treatment.