基于1.5 T磁共振成像系统观察湖羊颅脑形态解剖结构

通过磁共振（magnetic resonance imaging，MRI）影像技术探讨湖羊颅脑影像解剖结构。使用1.5 T磁共振扫描仪对10只健康湖羊进行扫查，采用自旋回波（SE）序列，快速自旋回波（FSE）序列以及液体衰减反转恢复（FLAIR）3种序列对湖羊脑部矢状面、横断面及冠状面进行成像。对获得的影像进行详细的解剖结构注释，并且测量了湖羊间脑、颅脑、端脑、第三脑室、第四脑室高度及下垂体的长度、宽度和高度。得到了一套完整的湖羊颅脑磁共振影像解剖图谱及正常湖羊脑解剖结构测量数据。本研究结果可为湖羊及其他绵羊颅脑疾病的影像学诊断提供依据，同时也为医学实验动物模型的研究提供了有价值的参考。

Preliminary Observation of the Anatomical Structure of the Brain in Hu-sheep by 1.5 T Magnetic Resonance Imaging System

This experiment was aimed to use the magnetic resonance imaging to study the anatomical structure of Hu-sheep's brain. Ten healthy Hu-sheep were scanned by a 1.5 T magnetic resonance scanner. Sagittal, transverse and dorsal aspect images of the brain were archived by using three sequences which are spin echo (SE), fast spin echo (FSE), and fluid attenuated inversion recovery (FLAIR). All anatomical structure of MR images were noted, the height of diencephalon, cerebrum, telencephalon, the third ventricle, the fourth ventricle were measured,the same as the pituitary gland's height, length and width. As a result, we have established a complete image atlas and provided basic imaging data of the normal Hu-sheep's brain structure. It can provide helpful informations for imaging diagnosis of Hu-sheep's and the other sheep's brain disease, as well as provide a valuable reference for medical experimental animal model.