纹理分析鉴别成人毛细胞型星形细胞瘤和血管母细胞瘤  

Differentiation of adult pilocytic astrocytomas and hemangioblastomas using texture analysis

作　　者：苏春秋 韩秋月[1] 冯飘飘 詹天明 洪汛宁[1] 

机构地区：[1]南京医科大学第一附属医院放射科,江苏南京210029 [2]南京审计大学工学院,江苏南京211815

出　　处：《实用放射学杂志》2018年第1期8-11,共4页Journal of Practical Radiology

摘　　要：目的 探讨纹理分析鉴别成人毛细胞型星形细胞瘤（PA）与血管母细胞瘤（HB）的应用价值.方法 回顾性分析本院经手术病理证实的22例成人PA与20例 HB的常规MRI的影像特征及纹理特征.本研究采用游程长矩阵（RLM）提取8个纹理参数,应用独立样本 t检验比较2组样本各纹理参数间的差异.结果 在成人PA组中,短游程因子（SRE）、灰度不均匀度（GLNU）、游程长不均匀度（RLNU）、高灰度游程因子（HGRE）及短游程高灰度因子（SRHGE）较HB组数值高,而长游程因子（LRE）、低灰度游程因子（LGRE）及短游程低灰度因子（SRLGE）较 HB组数值低.8个纹理参数2组间相比较均有显著性差异（P〈0.05）.结论纹理分析可用于鉴别成人PA与HB,为鉴别两者提供可靠的客观证据.Objective To investigate the diagnostic value of the texture analysis in differentiating adult pilocytic astrocytomas （PA）from hemangioblastomas（HB）.Methods 22 adult patients with PA and 20 patients with HB which were confirmed by postoperative pathological were retrospectively reviewed.The conventional MRI features and texture parameters were analyzed.Eight texture parameters were extracted using run-length matrix（RLM）,and the differences of texture parameters of the two groups were analyzed by independent-samples t test.Results The short run emphasis（SRE）,grey-level non-uniformity（GLNU）,run-length non-uniformity（RLNU）,high grey-level run emphasis（HGRE）and short run high grey-level emphasis（SRHGE）were higher in adult PA than in HB.The long run emphasis（LRE）,low grey-level run emphasis（LGRE）and short run low grey-level emphasis（SRLGE）were lower in adult PA than in HB.The eight texture parameters had significant differences between the two groups（P〈0.05）.Conclusion Texture analysis can provide reliably objective basis for differentiating adult PA from HB.

关 键 词：纹理分析 游程长矩阵 毛细胞型星形细胞瘤 血管母细胞瘤 

分 类 号：R445.2[医药卫生—影像医学与核医学] R739.41[医药卫生—诊断学]