3.0T磁共振体素内不相干运动扩散加权成像鉴别诊断脊柱不典型血管瘤与溶骨性转移瘤

发布时间：2018-05-19 14:09

  本文选题：脊柱 + 血管瘤　； 参考：《中国医学影像技术》2017年02期

【摘要】：目的探讨3.0T MR体素内不相干运动(IVIM)成像对脊柱不典型血管瘤与溶骨性转移瘤的鉴别诊断价值。方法回顾性收集18例脊柱不典型血管瘤患者(19个病灶)和25例脊柱转移瘤患者(69个病灶)。对所有患者均行3.0T MR扫描,包括常规序列和IVIM DWI序列,采用单指数模型后处理软件获得ADC值,采用双指数模型后处理软件获得IVIM参数,包括慢速扩散系数(ADCslow值)、快速扩散系数(ADCfast值)及快速扩散分数(f值)。采用独立样本t检验或Mann-Whitney U检验比较各参数值的差异。结果脊柱不典型血管瘤和转移瘤的ADC值分别为(1.16±0.30)×10~(-3) s/mm~2、(0.80±0.27)×10~(-3) s/mm~2,差异有统计学意义(t=5.00,P0.001);ADCslow中位数分别为0.78×10~(-3) s/mm~2、0.55×10~(-3) s/mm~2,差异有统计学意义(P=0.02);ADCfast分别为(63.06±33.89)×10~(-3) s/mm~2、(70.78±39.62)×10~(-3) s/mm~2,差异无统计学意义(t=0.77,P=0.44);f分别为(40.65±14.75)%、(32.49±11.50)%,差异有统计学意义(t=2.57,P=0.01)。结论 IVIM可定量评估脊柱不典型血管瘤和溶骨性转移瘤的水分子扩散及微血管灌注特性,ADC、ADCslow值对脊柱不典型血管瘤和溶骨性转移瘤具有一定的鉴别诊断价值。
[Abstract]:Objective to evaluate the value of 3. 0T Mr VIM imaging in differential diagnosis of spinal atypical hemangioma and osteolytic metastasis. Methods 18 patients with atypical spinal hemangioma (19 lesions) and 25 patients with spinal metastases (69 lesions) were retrospectively collected. All patients were scanned with 3.0T Mr scan, including routine sequence and IVIM DWI sequence. The ADC value was obtained by single exponential model post-processing software, and the IVIM parameters were obtained by double-exponential model post-processing software. These include slow diffusion coefficient (ADCD), fast diffusion coefficient (ADCfast) and fast diffusion fraction (f). T test and Mann-Whitney U test were used to compare the difference of parameters. 缁撴灉鑴婃煴涓嶅吀鍨嬭��绠＄槫鍜岃浆绉荤槫鐨凙DC鍊煎垎鍒�涓�(1.16卤0.30)脳10~(-3) s/mm~2,(0.80卤0.27)脳10~(-3) s/mm~2,宸�寮傛湁缁熻�″�︽剰涔�(t=5.00,P0.001);ADCslow涓�浣嶆暟鍒嗗埆涓�0.78脳10~(-3) s/mm~2,0.55脳10~(-3) s/mm~2,宸�寮傛湁缁熻�″�︽剰涔�(P=0.02);ADCfast鍒嗗埆涓，

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