摘要
目的：提高对瘤卒中ＭＲ特征的认识。材料与方法：对７７例１０６个瘤卒中和５５例单纯脑内血肿作影像对照，重点观察血肿的结构及在ＭＲ重度Ｔ２加权和梯度回波图像上血肿周围含铁血黄素沉积圈的出现率和完整性，比较瘤卒中和单纯血肿。结果：１０６个瘤卒中，血肿周围含铁血黄素沉积圈完全缺失４０个（３８％），部分缺失５７（５４％）个，厚度不均匀（９．８％）。而５５例单纯脑内血肿的血肿周围均可见到完整均匀的含铁血黄素沉积圈。结论：亚急性～慢性血肿周围含铁血黄素沉积圈的不完整性和不规则性是诊断瘤卒中的一个重要依据。
Purpose: To improve the realization of MR features of hemorrhagic brain tumors. Materials and methods: A retrospective MR study of 77 cases with 106 hemorrhagic brain tumors was performed and compared with 55 simple brain hematomas, with emphasis on the structure as well as the occurrence and integrities of the peripheral hemorrhagic rims of deposited hemosiderin. Results: The hemosiderin rims were regular existed in all 55 simple brain hematomas, whereas it was absent in 40(38%) tumors, partial existed in 57(54%) tumors, and irregular existed in (9.8%) tumors. Conclusion: The author believe that the irregular and interrupted hemosiderin rim may be a important clue to consideration of hemorrhagic tumor.
出处
《中国医学影像学杂志》
CSCD
1997年第4期196-198,共3页
Chinese Journal of Medical Imaging
关键词
脑肿瘤
瘤卒中
脑出血
MRI
Brain tumor
Hemorrhagic brain tumor
Brain hemorrhage
MR
