肿瘤显示T2-FLAIR错配征,尽管存在个小结节增强,但术后病理证实为IDH突变的胶质母细胞瘤。 图5:27岁男性,左侧岛也弥漫星形细胞瘤,IDH突变,显示T2-FLAIR错配征。(A)最初1.5T MRI的T2WI和(B)FLAIR图像显示了左岛叶占位,T2WI上的高强度信号接近均匀,FLAIR上的低信号,但周围边缘薄层高信号。(C)一个月后进行的3T...
T2-FLAIR mismatch sigh(T2-FLAIR 错配征) 登录 开通大会员 大会员 消息 动态 收藏 历史记录 创作中心 投稿 光与暗的旅程 2023年10月02日 15:57 T2-FLAIR错配征。 分享至 投诉或建议 评论 赞与转发 1 0 0 0 0
T2—液体衰减反转恢复(fluid attenuated inversion recovery, FLAIR)序列错配征(T2-FLAIR mismatch sign)是一种在常规MRI中易于识别的影像学征象,表现为胶质瘤瘤体在T2WI序列上呈均匀高信号,且能被FLAIR序列部分抑制。大量文献报道,该征象对预测异柠檬酸脱氢酶(isocitrate dehydrogenase, IDH)突变伴染色体臂1p和19q(1p...
T2—液体衰减反转恢复(fluid attenuated inversion recovery, FLAIR)序列错配征(T2-FLAIR mismatch sign)是一种在常规MRI中易于识别的影像学征象,表现为胶质瘤瘤体在T2WI序列上呈均匀高信号,且能被FLAIR序列部分抑制。大量文献报道,该征象...
T2-FLAIR mismatch was positive in 5 1p19q non-codeleted astrocytomas, 5 1p19q unknown ATRX mutant astrocytomas, and no 1p19q co-deleted oligodendrogliomas. Test sensitivity and specificity was 14% and 100% for 1p19q non-codeletion, 13% and 100% for ATRX mutation. CONCLUSION. Although ...
Jain R, Johnson DR, Patel SH, et al. 'Realworld' use of a highly reliable imaging sign: 'T2-FLAIR mismatch' foridentification of IDH mutant astrocytomas [published online ahead of print,2020 Feb 17].Neuro Oncol. 2020;noaa041. doi:10.1093/neuonc/noaa041...
T2-FLAIR错配征 TheT2-FLAIRmismatchsign 肿瘤在T2加权图像上显示完全或接近完全且几乎均匀的高信号 O1 肿瘤在T2加权FLAIR序列上显示相对低信号但周边高信号除外 O2 NeuroOncol.2020Jul7;22(7):936-943 T2-FLAIR错配征的使用经过了完善的验证和文献综述分析 假设提出-结果推测-基因及影像验证 NeuroOncol.2020Jul7...
The presence of >33% and >50% T2-FLAIR mismatch was observed in 23 cases (74.2%) and 14 cases (45.2%), respectively, and was associated with CDKN2A-intact astrocytoma ( p =0.0001, 0.0482). None of the astrocytoma, IDH-mutant with CDKN2A-HD showed T2-FLAIR mismatch sign. Cystic ...
1.上图为改良DWI-FLAIR匹配,A图为完全匹配,B图为部分不匹配,C图为完全不匹配。DWI-FLAIR不匹配研究较多,多支持给... 【病例讨论60】 T2WI FLAIR TRA.右侧小脑半球可见一囊实性异常信号,以囊性为主呈长T1长T2异常信号,FLAIR呈低信号,大小约6.0×3.8×4.3cm,其... Stroke:Flair血管高信号/DWI的mismatch准确...
The T2-FLAIR–mismatch sign – Response doi:10.3171/2020.3.FOCUS20113Neurosurgical FocusGoyal, AnshitYolcu, Yagiz U.