婴幼儿视网膜母细胞瘤高分辨力MRI特征
发布时间:2019-08-12 12:34
【摘要】:目的探讨婴幼儿视网膜母细胞瘤(RB)高分辨力MRI表现的特征及其诊断价值。方法搜集在本院行眼球摘除术的42例RB患儿术前MRI资料,对其中符合入组标准的19例(男11例,女8例,发病年龄5~36个月,中位年龄12.5个月)MR图像与病理结果进行对比分析。结果 19例患儿中,双眼发病7例,单眼12例,共26眼受累,多灶5眼,单灶21眼。瘤灶在T1WI呈较稍高或中等信号,T2WI呈低或中等信号,增强后肿瘤呈轻到中度强化。肿瘤呈内生型生长者6眼,外生型生长者17眼,浸润型生长者3眼。与病理对照MRI对脉络膜受累者诊断的准确性,敏感性和特异性分别为65.4%,66.6%,63.6%。MRI对视神经受累者诊断的准确性,敏感性和特异性分别为61.5%,70.0%,56.3%。结论 MRI对于RB的诊断具有很高的特异性,能显示肿瘤向周围细微结构的浸润,可为临床治疗前的分期及制定治疗方案提供依据。
[Abstract]:Objective to investigate the characteristics and diagnostic value of (RB) high resolution MRI in infants and young children with Retinoblastomas. Methods the preoperative MRI data of 42 cases of RB were collected. The MR images and pathological results of 19 cases (11 males and 8 females, the age of onset was 5 鈮,
本文编号:2525716
[Abstract]:Objective to investigate the characteristics and diagnostic value of (RB) high resolution MRI in infants and young children with Retinoblastomas. Methods the preoperative MRI data of 42 cases of RB were collected. The MR images and pathological results of 19 cases (11 males and 8 females, the age of onset was 5 鈮,
本文编号:2525716
本文链接:https://www.wllwen.com/yixuelunwen/yank/2525716.html
最近更新
教材专著