后颅凹实质型血管母细胞瘤MRI特征探讨

发布时间：2018-03-03 07:55

本文选题：血管母细胞瘤　切入点：血管流空影　出处：《临床放射学杂志》2017年04期 　论文类型：期刊论文

【摘要】：目的研究后颅凹实质型血管母细胞瘤的MRI特征,提高其影像学诊断水平。方法观察经病理证实的60例后颅凹实质型富血供肿瘤(实质型血管母细胞瘤20例,非血管母细胞瘤40例)的血管流空影、DWI信号特点,测量ADC值并进行统计学比较。结果 20例实质型血管母细胞瘤均有血管流空影,DWI像呈等或稍低信号18例,高信号2例,平均ADC值(1.95±0.17)×10~(-3)mm~2/s;40例非血管母细胞瘤有血管流空影6例,无血管流空影34例,DWI像呈等或稍低信号5例,高信号35例,平均ADC值为(0.93±0.13)×10~(-3)mm~2/s。经统计学比较,两者在是否有血管流空影、DWI信号的χ~2值分别为39.231、33.878,P值均0.05,ADC值间比较t=25.788,P0.05,差异均有统计学意义。结论存在血管流空影,DWI呈等或稍低信号及对应的较高的ADC值对提示后颅凹实质型血管母细胞瘤有价值。
[Abstract]:Objective to study the MRI features of posterior fossa parenchymal hemangioblastoma and to improve its imaging diagnosis. Methods 60 cases of parenchymal hemangioblastoma of posterior cranial fossa (20 cases of parenchymal hemangioblastoma) proved by pathology were observed. ADC values were measured and compared statistically. Results all 20 cases of parenchymal hemangioblastoma showed iso-or slightly low signal intensity, and 2 cases had high signal intensity. The mean ADC value was 1.95 卤0.17 脳 10 ~ (-3) ~ (-2) / s ~ (-1) / s in 40 cases of non-hemangioblastoma, in which 6 cases had vascular flow void imaging, 34 cases had iso-or slightly low signal intensity, 35 cases had high signal intensity, and the average ADC value was 0.93 卤0.13 脳 10 ~ (-3) mm ~ (-2 / s). Compared with the statistical analysis, the mean value of ADC was 0.93 卤0.13 脳 10 ~ (-3) mm ~ (-2 / s), and the mean ADC value was 0.93 卤0.13) 脳 10 ~ (-3) mm / s. The 蠂 ~ 2 value of DWI signal was 39.231 ~ 33.878g ~ (-1) (P = 0.05), respectively. The difference was statistically significant. Conclusion there is an equal or slightly low signal on DWI and a higher ADC value in the posterior cranium. Concave parenchymal hemangioblastoma is valuable.
【作者单位】：兵团第一师医院CT核磁室;兵团第三师医院CT核磁室;新疆医科大学附属肿瘤医院核磁室;
【分类号】：R445.2;R739.41

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