摘要
目的：探讨最小表观弥散系数（ADC）在松果体实质肿瘤分级中的作用。方法：回顾性分析经手术病理证实的松果体实质肿瘤16例（男性8例,女性8例,年龄7~55岁,平均27岁）,其中松果体细胞瘤5例,中间分化型松果体实质肿瘤5例,松果体母细胞瘤6例。在肿瘤实质部分测定最小ADC值,比较不同病理类型之间最小ADC值。结果：松果体细胞瘤平均最小ADC值（8.99±0.59）×10-4mm2/s;中间分化型松果体实质肿瘤平均最小ADC值（6.94±0.36）×10-4mm2/s;松果体母细胞瘤平均最小ADC值（4.64±0.38）×10-4mm2/s。从低级别到高级别,松果体实质肿瘤的平均最小ADC值呈依次降低的趋势。结论：最小ADC值与肿瘤细胞密度有一定相关性,可以为松果体实质肿瘤的良恶性分级提供更多的信息。
Purpose：To investigate the prediction value of the minimum apparent diffusion coefficient（ADC）in grading of pineal parenchymal tumors.Methods：Image Data of 16 patients（8 males,8 females,7-55 years old,mean age 27） with pineal parenchymal tumors which were pathologically proved（5 pineocytomas,5 pineal parenchymal tumors of intermediate differentiation and 6 pineoblastomas）were collected and analyzed retrospectively.The minimum ADC values were measured on ADC maps and compared.Results：The mean minimum ADC values for pineocytomas,pineal parenchymal tumors of intermediate differentiation and pineoblastomas were（8.99±0.59）×10-4mm2/s,（6.94±0.36）×10-4mm2/s,（4.64±0.38）×10-4mm2/s,respectively.And the tendency of the values from high to low can be observed.Conclusion：The minimum ADC values of pineal parenchymal tumors can provide additional information in predicting of tumor grade.
出处
《中国医学计算机成像杂志》
CSCD
北大核心
2011年第2期109-112,共4页
Chinese Computed Medical Imaging
关键词
松果体实质肿瘤
磁共振成像
弥散加权成像
表观弥散系数
Pineal parenchymal tumors Magnetic resonance imaging Diffusion weighted imaging Apparent diffusion coefficient
