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      垂體強化MRI對垂體柄阻斷綜合征的診斷價值及其與垂體-靶腺功能損傷的相關性分析

      2018-01-09 07:18:44鄧治強向學凌
      中國醫(yī)學裝備 2017年12期
      關鍵詞:生長激素皮質醇激素水平

      鄧治強 李 箐 向學凌

      垂體強化MRI對垂體柄阻斷綜合征的診斷價值及其與垂體-靶腺功能損傷的相關性分析

      鄧治強①李 箐①向學凌①

      目的:研究垂體強化核磁共振成像(MRI)對垂體柄阻斷綜合征(PSIS)的診斷價值并對其與垂體-靶腺功能損傷的相關性進行探討分析。方法:選取醫(yī)院收治的80例PSIS患者,經(jīng)垂體強化MRI進一步診斷后將其分為部分垂體柄阻斷組(38例)和完全垂體柄阻斷組(42例);另選取80名正常健康者為健康對照組。檢測三組相關激素水平,分析MRI表現(xiàn)與缺乏的激素種類、數(shù)目及嚴重程度的相關性。結果:部分垂體柄阻斷組垂體前葉高度<3 mm為10例,3~5 mm為23例,>5 mm為5例。垂體后葉缺失4例,異位15例,體積變小11例。完全垂體柄阻斷組垂體前葉高度<3 mm為23例,3~5 mm為16例,>5 mm為3例。垂體后葉缺失8例,異位32例,體積變小1例。完全垂體柄阻斷組生長激素、胰島素樣生長因子、游離甲狀腺素、血清促甲狀腺激素、皮質醇和促腎上腺皮質激素均顯著低于部分垂體柄阻斷組和健康對照組,與兩組比較差異具有統(tǒng)計學意義(F=224.92,F(xiàn)=2571.80,F(xiàn)=369.50,F(xiàn)=67.73,F(xiàn)=2677.94,F(xiàn)=24.17;P<0.05)。除胰島素樣生長因子及游離甲狀腺素,部分垂體柄阻斷組生長激素、血清促甲狀腺激素、皮質醇、促腎上腺皮質激素與對照組相比無顯著差異。部分垂體柄阻斷組垂體-性腺激素的卵泡刺激素、黃體生成素、雌二醇、睪酮、泌乳素水平均顯著低于健康對照組,兩組比較差異具有統(tǒng)計學意義(F=354.94,F(xiàn)=247.00,F(xiàn)=247.83,F(xiàn)=655.05,F(xiàn)=48.10;P<0.05)。部分垂體柄阻斷組和完全垂體柄阻斷組卵泡刺激素、黃體生成素、雌二醇、睪酮、泌乳素水平無顯著差異。結論:垂體區(qū)強化MRI能夠有效診斷垂體柄阻斷綜合征的進程及垂體-靶腺功能的損傷程度。

      強化MRI;垂體柄阻斷綜合征;垂體-靶腺功能損傷;激素水平;相關分析

      垂體柄阻斷綜合征(pituitary stalk interruption syndrome,PSIS)臨床表現(xiàn)為垂體前葉高度降低,垂體后葉缺失、異位及體積變小,垂體激素水平降低,從而造成功能下降[1-2]。目前,通過核磁共振成像(magnetic resonance imaging,MRI),觀察顯現(xiàn)的圖像清晰判定垂體柄阻斷綜合征等異常結構對患者是否患有垂體柄阻斷綜合征進行檢查[3]。但MRI對PSIS的進程及垂體-靶腺功能的損傷程度效能不甚清楚[4]。為此,本研究選取80例PSIS患者,觀察并研究垂體強化MRI對PSIS的診斷價值,并對其與垂體-靶腺功能損傷的相關性進行探討分析。

      1 資料與方法

      1.1 一般資料

      回顧性分析內(nèi)江市中醫(yī)醫(yī)院2015年8月至2016年6月期間收治的80例PSIS患者,并經(jīng)垂體強化MRI進一步診斷后將其分為部分垂體柄阻斷組(38例)和完全垂體柄阻斷組(42例)。另選取80例正常健康人納入健康對照組。部分垂體柄阻斷組中男性46例,女性34例;年齡14~51歲,平均年齡(31.51±2.32)歲。完全垂體柄阻斷組中男性38例,女性42例;年齡16~49歲,平均年齡(31.72±2.56)歲。健康對照組中男性43例,女性37例;年齡15~53歲,平均年齡(32.37±3.14)歲。三組的一般資料無差異,具有可比性。所有入組者對本研究均知情,并簽署知情同意書。

      1.2 納入與排除標準

      (1)納入標準:①均行胰島素、精氨酸的生長激素激發(fā)檢驗,測定垂體—靶腺激素;②血清生長激素峰值均<5 μg/L;③伴有一種及以上其他垂體激素缺乏的患者。

      (2)排除標準:①有營養(yǎng)不良者;②患有系統(tǒng)器質性疾??;③患有遺傳代謝疾病。

      1.3 儀器與材料

      采用1.5T型超導醫(yī)用磁共振系統(tǒng)Vantage atlas(日本東芝公司);增強掃描采用噴酸葡胺(北京北陸藥業(yè)股份有限公司,國藥準字H10860001)。

      1.4 檢查方法

      采用東芝核磁共振掃描儀對患者垂體進行矢狀面和冠狀面MRI影像學檢查,并注射釓噴酸葡胺行增強掃描。測量垂體前葉高度,多次測量取平均值。取患者空腹時靜脈血,通過免疫化學發(fā)光法檢測其生長激素、胰島素樣生長因子、游離甲狀腺素、血清促甲狀腺激素、皮質醇、促腎上腺皮質激素、卵泡刺激素、黃體生成素、雌二醇、睪酮和泌乳素的水平。

      1.5 觀察與評價指標

      通過強化MRI圖像,確定患者PSIS的類型,部分垂體柄阻斷組MRI顯示垂體柄顯著變細,但垂體柄完全阻斷組MRI顯示垂體柄中斷或缺失。游離甲狀腺素低于12.0 pmol/L提示甲狀腺功能減退。若皮質醇低于550 nmol/L,提示腎上腺功能不全。

      1.6 統(tǒng)計學方法

      采用SPSS 18.0統(tǒng)計軟件對數(shù)據(jù)進行統(tǒng)計分析,符合正態(tài)分布的計量資料以均值±標準差(±s)表示,定性資料用百分率(%)表示,計量資料行F檢驗,以P<0.05為差異有統(tǒng)計學意義。

      2 結果

      2.1 部分垂體柄阻斷組與完全垂體柄阻斷組垂體MRI比較

      部分垂體柄阻斷組垂體前葉高度<3 mm10例,3~5 mm23例,>5 mm5例;垂體后葉有4例缺失,15例異位,11例體積變小。完全垂體柄阻斷組垂體前葉高度<3 mm23例,3~5 mm16例,>5 mm3例;垂體后葉缺失8例,異位32例,體積變小1例。兩組垂體前葉高度和垂體后葉MRI比較,其差異有統(tǒng)計學意義(x2=6.69,x2=16.26;P<0.05),見表1。

      2.2 三組垂體-靶腺激素水平比較

      完全垂體柄阻斷組生長激素、胰島素樣生長因子、游離甲狀腺素、血清促甲狀腺激素、皮質醇、促腎上腺皮質激素均顯著低于部分垂體柄阻斷組和健康對照組,差異具有統(tǒng)計學意義(F=224.92,F(xiàn)=2571.80,F(xiàn)=369.50,F(xiàn)=67.73,F(xiàn)=2677.94,F(xiàn)=24.17;P<0.05);除胰島素樣生長因子及游離甲狀腺素,部分垂體柄阻斷組生長激素、血清促甲狀腺激素、皮質醇、促腎上腺皮質激素與對照組相比無顯著差異,見表2。

      2.3 三組垂體-性腺激素水平比較

      部分垂體柄阻斷組垂體-性腺激素卵泡刺激素、黃體生成素、雌二醇、睪酮以及泌乳素水平均顯著低于健康對照組,兩組比較差異有統(tǒng)計學意義(F=354.94,F(xiàn)=247.00,F(xiàn)=247.83,F(xiàn)=655.05,F(xiàn)=48.10;P<0.05);而部分垂體柄阻斷組和完全垂體柄阻斷組卵泡刺激素、黃體生成素、雌二醇、睪酮及泌乳素水平比較無顯著差異,見表3。

      表1 部分垂體柄阻斷組和完全垂體柄阻斷組垂體MRI比較[例(%)]

      表2 三組垂體-靶腺激素水平比較(±s)

      表2 三組垂體-靶腺激素水平比較(±s)

      表3 三組垂體-性腺激素水平比較(±s)

      表3 三組垂體-性腺激素水平比較(±s)

      3 討論

      近年來,我國PSIS發(fā)病率居高不下,且逐年升高,對患者日常生活造成了極大影響[5]。目前,該病發(fā)病機制仍不明確,有研究稱,PSIS的發(fā)生原因有可能是由于臀位難產(chǎn)而造成,也有可能是促進垂體發(fā)育的基因發(fā)生突變[6]。PSIS治療遵循診斷趁早,治療趁早,方法有直接注射腺垂體激素進行治療[7]。對患者長期跟訪,定期評定,并根據(jù)患者階段不同情況更新不同治療方案。在PSIS患者的強化MRI中,垂體后葉缺失、易位、體積變小與高度降低的受損的垂體前葉[8]??赡芘c垂體柄區(qū)域受損有關,進而導致垂體功能區(qū)缺血,垂體功能受損。本研究中部分垂體柄阻斷組患者在生長激素同時可伴有甲狀腺、腎上腺功能減退等,并且完全性垂體柄阻斷時上述并發(fā)癥的發(fā)生率明顯高于部分性垂體柄阻斷[10]。完全垂體柄阻斷組患者與部分垂體柄阻斷組患者相比,發(fā)生多種垂體激素缺乏癥的風險更高[11]。

      采用MRI可檢測出是否患有PSIS,通過強化MRI圖像,可確定患者PSIS的類型[9]。而強化MRI可進一步測定垂體柄受損的程度及范圍[12]。本研究結果表明,完全垂體柄阻斷組生長激素、胰島素樣生長因子、游離甲狀腺素、血清促甲狀腺激素、皮質醇以及促腎上腺皮質激素均顯著低于部分垂體柄阻斷組和健康對照組[13]。這與羅文軍等[9]的研究結果相同,提示垂體柄阻斷組患者伴有垂體-靶腺功能損傷。另有文獻指出,垂體強化MRI中,缺失、異位及體積變小的垂體后葉強化的時間顯著增加。且也有可能與垂體柄區(qū)域受損有關,垂體功能區(qū)血供不足,基本功能受損[14-15]。本研究結果還顯示,除胰島素樣生長因子及游離甲狀腺素,部分垂體柄阻斷組生長激素、血清促甲狀腺激素、皮質醇、促腎上腺皮質激素水平與健康對照組相比無顯著差異。部分垂體柄阻斷組垂體-性腺激素水平均顯著低于健康對照組。提示垂體-靶腺功能的降低與患者垂體柄受損程度有關,但部分垂體柄阻斷組和完全垂體柄阻斷組卵泡刺激素、黃體生成素、雌二醇、睪酮以及泌乳素水平無顯著差異。

      [1]Parhar IS,Nagahama Y,Grau EG,et al.Immunocytochemical and Ultrastructural Identification of Pituitary Cell Types in the Protogynous Thalassoma duperrey during Adult Sexual Ontogeny[J].Zoological science,2014,15(2):263-276.

      [2]郝華超,王鵬,董軒.內(nèi)鏡經(jīng)鼻孔-蝶竇入路手術治療垂體瘤71例[J].中國醫(yī)藥科學,2012,2(18):230-231.

      [3]Roulin A,Mafli A,Wakamatsu K.Reptiles Produce Pheomelanin:Evidence in the Eastern Hermann's Tortoise(Eurotestudo boettgeri)[J].Journal of Herpetology,2012,47(2):258-261.

      [4]Rey-Dios R,Payner TD,Cohen-Gadol AA.Pituitary macroadenoma causing symptomatic internal carotid artery compression:surgical treatment through transsphenoidal tumor resection[J]. J Clin Neurosci,2014,21(4):541-546.

      [5]Elkammash TH,Enaba MM,Awadalla AM.Variability in sphenoid sinus pneumatization and its impact upon reduction of complications following sellar region surgeries[J].Egyptian Journal of Radiology and Nuclear Medicine,2014,45(3):705-714.

      [6]吳志峰,鐘群,徐曉芳,等.垂體腺瘤伴發(fā)Rathke裂囊腫的臨床和MRI特點[J].中華神經(jīng)外科疾病研究雜志,2016,15(3):246-249.

      [7]Rajah G,Hornyak M.Intra-operative rupture of remote aneurysm during transphenoidal resection of pituitary macroadenoma[J].Open Journal of Modern Neurosurgery,2014,4(2):64-68.

      [8]Almeida Silva JM,Campos RR,Souza RR,et al.Spontaneous subarachnoid haemorrhage from rupture of an anterior communicating artery aneurysm in a patient with pituitary macroadenoma[J].Neurocirugia,2014,25(2):81-85.

      [9]羅文軍,郭偉,羅甜,等.侵襲性垂體瘤的MRI診斷與影像學特征[J].現(xiàn)代腫瘤醫(yī)學,2014,22(11):2724-2726.

      [10]Rustagi T,Uy EM,Rai M,et al.Intracranial hemorrhage from undetected aneurysmal rupture complicating transphenoidal pituitary adenoma resection[J].Connecticut Medicine,2011,75(7):393-398.

      [11]方松林,陳贇,張小軍.奧曲肽、垂體后葉素治療肝硬化上消化道出血療效比較[J].中國醫(yī)學裝備,2014(S1):260-260.

      [12]Yoon KW,Cho CS,L SK.Large intracranial aneurysm after transsphenoidal surgery for pituitary macroadenoma[J].J Korean Neurosurg Soc,2014,55(3):160-163.

      [13]Sasagawa Y,Tachibana O,Shiraga S,et al.[A clinical feature and therapeutic strategy in pituitary adenomas associated with intracranial aneurysms][J].No Shinkei Geka,2012,40(1):15-21.

      [14]包加宏,魏樂勛,青少年假性垂體瘤MRI診斷[J].中國臨床醫(yī)學影像雜志,2013,24(12):886-888.

      [15]Kikuchi R,Toda M,Wakahara S,et al.Analysis of the medial opticocarotid recess in patients with pituitary macroadenoma using threedimensional images[J].World Neurosurgery,2016,93:139-143.

      The diagnostic value of enhanced MRI of pituitary for pituitary stalk interruption syndrome and a correlation analysis between enhanced MRI and pituitary target gland function damage

      /DENG Zhi-qiang, LI Qing,XIANG Xue-ling

      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 (38 cases) and complete pituitary stalk interruption group (42 cases). 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.

      Enhanced MRI; Pituitary stalk interruption syndrome; Pituitary target gland function damage;Hormone level; Correlation analysis

      Department of Radiotherapy, Traditional Chinese Medical Hospital of Neijiang, Neijiang 641000, China.

      鄧治強,男,(1977- ),碩士,副主任醫(yī)師。內(nèi)江市中醫(yī)醫(yī)院放射科,研究方向:臨床放射學。

      1672-8270(2017)12-0086-04

      R445.2

      A

      10.3969/J.ISSN.1672-8270.2017.12.024

      ①內(nèi)江市中醫(yī)醫(yī)院放射科 四川 內(nèi)江 641000

      //China Medical Equipment,2017,14(12):86-89.

      2017-03-22

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