脊髓室管膜下瘤与星形细胞瘤的MRI对照

发布时间：2018-03-20 17:45

本文选题：室管膜下瘤　切入点：星形细胞瘤　出处：《中国医学影像技术》2015年09期 　论文类型：期刊论文

【摘要】：目的对比观察脊髓室管膜下瘤与星形细胞瘤的MRI表现。方法回顾性分析12例脊髓室管膜下瘤和30例星形细胞瘤的平扫和增强MRI表现及临床资料,对比分析二者发病年龄、性别分布、病变部位、病变纵轴长度、椎体数目、生长方式、T1WI信号、T2WI信号、有无强化、边界是否清楚、是否有囊变、是否有脊髓空洞、是否有瘤周水肿的差异。结果脊髓室管膜下瘤与星形细胞瘤发病年龄、性别分布、病变部位、T1WI信号、T2WI信号差异均无统计学意义(P均0.05)。脊髓室管膜下瘤纵轴长度大于星形细胞瘤(t=3.21,P0.05),椎体数目亦多于星形细胞瘤(t=2.58,P0.05);脊髓室管膜下瘤多无强化、呈偏心生长、边界清、无囊变及瘤周水肿,与星形细胞瘤比较差异均有统计学意义(χ2=6.43、10.63、15.42、4.67、13.67,P均0.05)。两种肿瘤脊髓空洞均少见。结论肿瘤生长方式、边界及瘤周水肿等MRI表现有助于鉴别脊髓室管膜下瘤与星形细胞瘤。
[Abstract]:Objective to compare the MRI findings of subependymal spinal cord tumor and astrocytoma. Methods the clinical data of 12 cases of subependymal spinal cord tumor and 30 cases of astrocytoma on plain scan and contrast enhanced MRI were analyzed retrospectively. Sex distribution, location of lesion, length of longitudinal axis of lesion, number of vertebrae, growth pattern T1WI signal intensity T2WI signal intensity, enhancement, whether the boundary is clear, whether there is cystic change, whether there is syringomyelia, whether there is syringomyelia, Results the age and sex distribution of subependymal spinal cord tumor and astrocytoma were different. There was no significant difference in signal intensity of T _ 1WI and T _ 2WI. The length of longitudinal axis of spinal subependymal tumor was larger than that of astrocytoma (3.21), and the number of vertebrae was larger than that of astrocytoma, and the number of vertebrae was more than that of astrocytoma, and most of the subependymal tumors had no enhancement and eccentric growth, and the boundary was clear. There was no cystic degeneration and peritumoral edema, and there was significant difference compared with astrocytoma (蠂 ~ 2 6.43n 10.63) 15.42n 4.67 ~ 13.67% P 0.05.The two kinds of tumor syringomyelia were rare. Conclusion the growth pattern of tumor is less than that of astrocytoma. MRI findings such as edematous and peritumoral edema are helpful in differentiating subependymal spinal cord tumors from astrocytomas.
【作者单位】：首都医科大学附属北京天坛医院放射科磁共振成像脑信息学北京市重点实验室;
【分类号】：R739.42;R445.2

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