| 张云燕,高鸿举.垂体微腺瘤的高场强MRI诊断[J].中国医学影像技术,1997,13(3):206~209 |
| 垂体微腺瘤的高场强MRI诊断 |
| High strength MRI Diagnosis of Pituitary Microadenoma |
| 投稿时间：1996-12-07 |
| DOI： |
| 中文关键词: 垂体微腺瘤 高场强磁共振 |
| 英文关键词:Pituitary microadenoma High strengh MRI |
| 基金项目: |
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| 中文摘要: |
| 目的：评价高场强MRI诊断垂体微腺瘤的特异性和敏感性。材料与方法：1993年5月至1993年12月间，笔者对行MR检查的50例垂体微腺瘤进行了分析。其中男8例，女42例。9例微腺瘤直径小于或等于3mm,最小者2mm.所有病例均应用西门子1.5TMagnetom63spMR检查，层厚3mm.结果：垂体内局限性低信号（92%）是微腺瘤的特征性表现，各间接征象具有不同的诊断价值；特别指出，各种类型的微腺瘤具有其特定的发生部位；平扫冠状位T1加权像为诊断垂体微腺瘤的首选序列，强化扫描不必要作常规应用。结论：高场强MRI对诊断垂体微腺瘤具有独到的优越性。 |
| 英文摘要: |
| Objective:To evaluate the speciality and sensitivety of the high strengh MRI in diagnosing microadenoma.Materials and methods:From May 1993 to December 1993,the auther had analyzed 50 pituitary microadenomas which had been checked by MR.The diametres of 9 cases were smaller or equal to 3mm.Of which,the smallest was 2mm.All patients were performed on a 1.5T Siemens Magnetom 63SP MR,with a slice thickness of 3mm.Results:The focal hypointensity(92%) within pituitary was the characterastic sign of microadenoma,and the diagnosing values of indirect signs varied;Especially,each kind of micro adenoma had its certain site in pituitary;Non contrast Coronal T1-W1 SE sequence was the first choice in diagnosing this kind of tumor.Enhancement examination can’t be used as routine.Conclusion:The high strength MRI has extremely superiority in diagnosing microadenomas. |
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