摘要
目的 分析发生在大脑各区脑膜瘤的ＣＴ和ＭＲＩ影像学特征，提高定性诊断的准确率。材料与方法回顾性搜集经手术和病理证实的分布于颅内各区的脑膜瘤共１３６例。结果脑膜瘤具有许多ＣＴ和ＭＲＩ的自身影像学特征和邻近组织间接影像学特征：如脑膜尾征、瘤周环形或半环形征、皮质塌陷征、鞍结节骑跨征、肿瘤强化明显征和ＣＴ图像上的颅骨增生征、蝶骨平台隆起征等。结论根据脑膜瘤自身和邻近组织的ＣＴ和ＭＲＩ特征，结合发生部位和临床表现，可明显提高对脑膜瘤定性诊断的准确率。
To improves the qualitative diagnosis rate of meningiomas with CT and MRI.Materials and methods 136 Csa es of meningiomas which were varified by operation and pathological exam.Results 1 .There are many character of tumor itself and tissues ar round it,exam:tail sign. circular or hemicircular low intensity sign around the tumor .grey matter collapse sign.across sign of sellar tubercle bone proliferation sign.、sphenoid plate bulging sign、homogeneous enhane sign. Conclusion Aware of the CT and MRI character of eningiomas and tissue around it,and combined with the location and clinical appearence, the qualitative diagnosis rate will be increased
出处
《医学影像学杂志》
2000年第1期14-15,共2页
Journal of Medical Imaging
关键词
脑膜瘤
体层摄影术
X线计算机
磁共振成像
Meningiomas Tomography, X-ray computed Magnetic resonance imaging
