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磁共振扩散加权成像在颅内占位病变的作用 被引量:1

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摘要 目的:探讨磁共振扩散加权成像在颅内占位病变诊断中的敏感性和特异性。方法:分析76例经手术病理证实的颅内肿瘤、脓肿等病变,在MRI、磁共振扩散加权成像表现,包括T1WI、T2WI等序列。结果:磁共振扩散加权显示呈明显高信号7例,稍高信号5例,中等信号29例,低信号35例。结论:磁共振扩散加权对表皮样囊肿、脑脓肿、淋巴瘤、畸胎瘤、胆脂瘤有高度敏感性和特异性,对脑膜瘤、胶质瘤坏死囊变肿瘤也有鉴别作用。
出处 《中国交通医学杂志》 2005年第3期291-292,共2页 Chinese Medical JOurnal of Communications
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