动态增强；磁共振成像；垂体微腺瘤；诊断____

动态增强磁共振成像在诊断垂体微腺瘤中的作用

http://www.100md.com 《实用医技杂志》 2006年第22期

动态增强；磁共振成像；垂体微腺瘤；诊断,,],动态增强；磁共振成像；垂体微腺瘤；诊断,1材料和方法,2结果,3讨论,参考文献:

     [摘要] 目的：研究对比剂动态增强磁共振成像(MRI)对垂体微腺瘤的诊断作用。方法：临床拟诊的垂体微腺瘤50例行快速自旋回波对比剂动态增强扫描，接着行常规增强扫描，分析比较动态增强和常规增强两种方法对垂体微腺瘤的检出率。结果：常规增强组垂体微腺瘤的检出率为72%；动态增强组垂体微腺瘤的检出率为94%。结论：动态增强扫描能明显提高垂体微腺瘤的检出率。

    [关键词] 动态增强；磁共振成像；垂体微腺瘤；诊断

    The Role of Dynamicenhanced MRI in the Diagnosis of Pituitary Microadenoma

    Fan Yuanxian, Cheng Chuanhu，LIU Jinwen, ZHONG Lansheng

    (The Central Hospital of Huizhou,Huizhou, Guangdong 516001,China)

    Abstract: Objective To determine whether dynamicenhanced MR imaging is superior to standard MR imaging after contrast administration for detecting pituitary microadenoma. Methods 50 cases of clinically suspected microadenoma were examined with dynamicenhanced MR imaging, and standard imaging with unenhanced and contrastenhanced spinecho sequences were obtained. The threesequences were evaluated retrospectively and graded for glandlesion contrast conspicuity, lesion, homogeneity, and delineation of lesion margin. Results The positive rate of microadenoma was 94% for dynamicenhanced MRI group and 72% for routinely contrastenhanced group. Conclusion Dynamicenhanced MRI is the best method for the diagnosis of pituitary microadenoma. ......

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