摘要
目的：研究正常人垂体后叶短Ｔ１高信号与垂体后叶内神经分泌颗粒含量的相关性。方法：用５例头部标本行垂体ＭＲ成像及垂体标本电镜观察，测量垂体后叶信号强度比与电镜下垂体后叶单位面积内神经分泌颗粒、脂滴的量，并进行相关与回归分析。结果：５例垂体后叶均呈短Ｔ１高信号；电镜下，垂体后叶含丰富的神经分泌颗粒，而脂滴少。结论：垂体后叶短Ｔ１高信号是由于垂体后叶内的神经分泌颗粒所致。
Purpose:To study the correlation between posterior pituitary high signal and neurosecretory granules in the posterior lobe of pituitary gland.Methods:MR images of pituitary gland were performed on five cranial cadavers.Then observed by electron microscopic.The signal intensity ratio of posterior pituitary gland and the amount of neurosecretory gland were measured;analysed with correlation and regression.Results:Posterior pituitary high signal were seen in five cases;There were abundnt neurosecretory granules in the posterior lobe of pituitary gland.but a few lipid droplets.Conclusion:Posterior pituitary high signal seen on T1weighted MR images is attributed to neurosecretory granules,and having linear positive correlation.
出处
《中国医学影像技术》
CSCD
北大核心
1998年第9期648-650,共3页
Chinese Journal of Medical Imaging Technology
关键词
磁共振成像
垂体后叶
电子显微镜
Magnetic resonance imaging Posterior pituitary lobe Electron Microscopic
