Objective:To observe and research the diagnostic value of enhanced MRI of pituitary for pituitary stalk interruption syndrome (PSIS) and explore the correlation between enhanced MRI and pituitary target gland function damage.Methods: 80 patients with PSIS were divided into part of pituitary stalk interruption group (38cases) and complete pituitary stalk interruption group (42cases). And 80 healthy people were divided into control group. The relative hormonal level of three groups were detected, and the correlation between appearance of MRI and insufficient hormonal type, amount and severity degree were analyzed.Results: In part of pituitary stalk interruption group, the heights of anterior pituitary gland were less than 3mm in 10 cases, and they were between 3-5mm in 23 cases and they were more than 5mm in 5 cases. And in them, there were 4 cases were posterior pituitary deficiency, 15 cases were heterotopia, 11 cases were volume diminished. In complete pituitary stalk interruption group, the heights of anterior pituitary gland were less than 3mm in 23 cases, and they were between 3-5mm in 16 cases and they were more than 5mm in 3 cases. And in them, there were 8 cases were posterior pituitary deficiency, 32 cases were heterotopia, 1 cases were volume diminished. All of the hormonal levels included growth hormone, insulin-like growth factor, free thyroxine, serum thyroid stimulating hormone (TSH), cortisol and adrenocorticotrophic hormone (ACTH) in complete pituitary stalk interruption group were significantly lower than that in part of pituitary stalk interruption group and control group (F=224.92,F=2571.80, F=369.50,F=67.73,F=2677.94,F=24.17,P<0.05), respectively. The differences of growth hormone, TSH, cortisol and ACTH, excepted insulin-like growth factor and free thyroxine, between part of pituitary stalk interruption group and control group were not significant. And pituitary-gonadal hormones level of part of pituitary stalk interruption group was significantly lower than that of control group (F=354.94,F=247.00, F=247.83,F=655.05,F=48.10,P<0.05). Besides, the differences of follicle-stimulating hormone, luteinizing hormone, estradiol, testosterone and prolactin levels between part of pituitary stalk interruption group and complete pituitary stalk interruption group were no significant.Conclusion: Enhanced MRI of pituitary can effectively diagnose pituitary stalk interruption syndrome and damage degree of pituitary target gland function.%目的:研究垂体强化核磁共振成像(MRI)对垂体柄阻断综合征(PSIS)的诊断价值并对其与垂体-靶腺功能损伤的相关性进行探讨分析.方法:选取医院收治的80例PSIS患者,经垂体强化MRI进一步诊断后将其分为部分垂体柄阻断组(38例)和完全垂体柄阻断组(42例);另选取80名正常健康者为健康对照组.检测三组相关激素水平,分析MRI表现与缺乏的激素种类、数目及严重程度的相关性.结果:部分垂体柄阻断组垂体前叶高度<3 mm为10例,3~5 mm为23例,>5 mm为5例.垂体后叶缺失4例,异位15例,体积变小11例.完全垂体柄阻断组垂体前叶高度<3 mm为23例,3~5 mm为16例,>5 mm为3例.垂体后叶缺失8例,异位32例,体积变小1例.完全垂体柄阻断组生长激素、胰岛素样生长因子、游离甲状腺素、血清促甲状腺激素、皮质醇和促肾上腺皮质激素均显著低于部分垂体柄阻断组和健康对照组,与两组比较差异具有统计学意义(F=224.92,F=2571.80,F=369.50,F=67.73,F=2677.94,F=24.17;P<0.05).除胰岛素样生长因子及游离甲状腺素,部分垂体柄阻断组生长激素、血清促甲状腺激素、皮质醇、促肾上腺皮质激素与对照组相比无显著差异.部分垂体柄阻断组垂体-性腺激素的卵泡刺激素、黄体生成素、雌二醇、睾酮、泌乳素水平均显著低于健康对照组,两组比较差异具有统计学意义(F=354.94,F=247.00,F=247.83,F=655.05,F=48.10;P<0.05).部分垂体柄阻断组和完全垂体柄阻断组卵泡刺激素、黄体生成素、雌二醇、睾酮、泌乳素水平无显著差异.结论:垂体区强化MRI能够有效诊断垂体柄阻断综合征的进程及垂体-靶腺功能的损伤程度.
展开▼
