高场强磁共振成像动态增强3D容积扫描对垂体柄阻断综合征的诊断价值  

Diagnositic value of the high field magnetic resonance imaging dynamic enhanced 3D volume scan on pituitary stalk interruption syndrome

作　　者：张一倩 王宏超 高万勤[2] 杜芳毅 ZHANG Yiqian;WANG Hongchao;GAO Wanqin;DU Fangyi(Department of Medical Imaging,Luoyang Maternal and Child Health Hospital,Luoyang 471002,Henan Province,China;Department of Interventional Medicine,The First Affiliated Hospital of Henan University of Science and Technology,Luoyang 471002,Henan Province,China)

机构地区：[1]洛阳市妇幼保健院医学影像科,河南洛阳471002 [2]河南科技大学第一附属医院介入科,河南洛阳471002

出　　处：《数理医药学杂志》2025年第3期186-191,共6页Journal of Mathematical Medicine

摘　　要：目的探讨高场强磁共振成像(magnetic resonance imaging,MRI)动态增强3D容积扫描技术对垂体柄阻断综合征(pituitary stalk interruption syndrome,PSIS)的诊断价值。方法回顾性分析在洛阳市妇幼保健院确诊PSIS患者的临床资料及MRI图像,通过复习PSIS相关文献,探讨其影像学表现及合适的MRI检查方法。结果研究共纳入10例患者。经过MRI平扫后,在矢状位与冠状位影像中均未观察到垂体柄的显示,且正常位置的垂体后叶应有的短T1信号已消失,而在第三脑室的漏斗隐窝处可见小结节状短T1信号,最大径范围为1.8~4.5 mm,平均(3.2±1.1)mm;垂体前叶均较小较薄,贴于鞍底,高径2.6~3.8 mm,平均(3.1±0.4)mm。其中,2例异位至漏斗隐窝的垂体后叶形态较小,经高场强MRI动态增强3D容积扫描后,T1高信号显示更明确、清晰,垂体柄阻断及异位神经垂体均可明确诊断。10例患者中,有1例合并两侧小脑扁桃体变尖下移,超出枕大孔前后缘连线4 mm。结论MRI平扫简便易行,但高场强MRI动态增强3D容积扫描能够更清晰地显示垂体柄的缺失、变细及异位,在PSIS的诊断中显示出了一定潜力。Objective To explore the diagnostic value of the high field magnetic resonance imaging(MRI)dynamic enhanced 3D volume scan technology on pituitary stalk interruption syndrome(PSIS).Methods A retrospective analysis was conducted on the clinical data and MRI images of patients diagnosed with PSIS in Luoyang Maternal and Child Health Hospital.The related literature on PSIS was reviewed,and the imaging manifestations and appropriate MRI examination methods were explored.Results A total of 10 cases were included in the study.After MRI scanning,no pituitary stalk was observed in both sagittal and coronal images. Short T1 signals in the posterior lobe of the pituitary gland disappeared in normal positions, and small nodular short T1 signals were observed in the funnel-shaped recess of the third ventricle, with a maximum diameter range of 1.8-4.5 mm and an average of (3.2±1.1) mm. The anterior pituitary glands were relatively small and thin, attached to the base of the saddle, with a height diameter of 2.6-3.8 mm and an average of (3.1±0.4) mm. Among them, 2 cases had smaller posterior pituitary morphologies that were ectopic to the funnel-shaped recess, and after using the high-field MRI dynamic enhanced 3D volume scan technology, T1 high signal was more clear and distinct, and the diagnosis can be confirmed by pituitary stalk interruption and ectopic neurohypophysis. Among the 10 cases, 1 case was accompanied by pointed downward movement of the cerebellar tonsils on both sides, extending 4 mm beyond the line of the anterior and posterior edges of the foramen magnum. Conclusion The MRI scanning is simple and feasible, however, the high-field MRI dynamic enhanced 3D volume scan can show the loss, thinning and ectopia of the pituitary stalk more clearly, which has shown potential in the diagnosis of PSIS.

关 键 词：垂体柄阻断综合征 高场强磁共振成像 动态增强 3D容积扫描 

分 类 号：R584[医药卫生—内分泌]