术前MRI预测垂体腺瘤质地的临床研究(1)
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【中图分类号】R736.4【文献标识码】A【文章编号】1005-2720(2010)07 - 10 - 03
【摘要】目的 探讨通过术前磁共振信号强度判断垂体腺瘤质地的可能性。方法 58例经手术和病理确诊的垂体腺瘤根据手术中肿瘤的质地分为2组:质软组(44例),质韧组(14例),所有病例术前均行磁共振扫描,测量T1WI及T2WI肿瘤信号与脑白质信号的比值和强化前后肿瘤T1WI信号强度比值,与其术中所见腺瘤质地相对照,结果进行统计学分析。结果 质地软44例,T2WI瘤体/白质信号强度比均值2.20;质地韧14例,T2WI瘤体/白质信号强度比均值1. 41。两组之间T2WI瘤体/白质信号强度比有显著差异(P<0. 01)。结论 术前MRI可以预测垂体腺瘤的质地,以T2WI瘤体/白质作预测指标较准确,T2WI瘤体/白质小于1.9者提示垂体腺瘤质地较韧。
【关键词】MRI;垂体腺瘤;质地
Clinical study on evaluating pituitary adenoma texture by preoperative MRI signal intensity
CHEN Ai-guo
(Beijing Shunyi Hospital of China Medical University 101300,China)
【Abstract】Objective To study the possibility of preoperative texture evaluation of pituitary adenoma by MRI.Methods 58 cases of pituitary adenoma confirmed by surgery and pathology were divided into two groups based on tumor texture:soft-texture group(44 cases),firm-texture group(14 cases) ......
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