弥散张量成像对腰骶部神经根卡压体征明显患者的诊断价值  

Diagnostic value of diffusion tensor imaging in patients with obvious signs of lumbosacral nerve root compres⁃ sion

作　　者：杨碰花 林丽亚 YANG Penghua;LIN Liya(Department of Radiology,Taizhou Central Hospital,Taizhou 318000,China)

机构地区：[1]台州市中心医院(台州学院附属医院)放射科,浙江台州318000 [2]台州市肿瘤医院放射科

出　　处：《全科医学临床与教育》2022年第7期613-616,F0002,共5页Clinical Education of General Practice

摘　　要：目的探究弥散张量成像对腰骶部神经根卡压体征明显患者的诊断价值。方法选取腰骶部神经根卡压体征明显患者80例作为研究组,另外选取接受常规检查的受检者80例作为对照组。所有受检者均采用常规MRI扫描、弥散张量成像扫描。采用纤维束追踪双ROI法在图像内生成纤维束直接观测,并比较两组双侧的各向异性分数(FA)值、表观扩散系数(ADC)值。结果研究组患侧FA值低于健侧,ADC值高于健侧,差异均有统计学意义(t分别=52.00、5.62,P均<0.05),研究组患侧FA值低于对照组左侧、右侧,ADC值高于对照组左侧、右侧,差异均有统计学意义(t分别=10.68、9.66、5.62、5.31,P均<0.05)。与FA值、ADC值单项诊断比较,两项联合对腰骶部神经根卡压体征明显患者的诊断价值较高(Z分别=4.01、3.84,P均<0.05)。结论腰骶部神经根卡压体征明显患者患侧FA值较正常人群降低、ADC值升高,FA值、ADC值联合对腰骶部神经根卡压体征明显患者有较高的诊断价值。Objective To explore the diagnostic value of diffusion tensor imaging in patients with obvious signs of lum-bosacral nerve root compression.Methods Eighty patients with obvious signs of lumbosacral nerve root compression were selected as the study group,and another 80 subjects receiving routine examination were selected as the control group.All subjects were subjected with conventional MRI scanning and diffusion tensor imaging scanning.The fiber beam track-ing double ROI method was used to generate direct fiber beam observation in the image,and compare the anisotropy score(FA)value and apparent diffusion coefficient(ADC)value of the two groups both sides.Results The FA value of the affected side of the study group was lower than that of the healthy side,and the ADC value was higher than that of the healthy side,and the differences were statistically significant(t=52.00,5.62,P<0.05).The FA value of the affected side of the study group was lower than the left and right side of the control group,and ADC value was higher than the left and right side of the control group,and the difference was statistically significant(t=10.68,9.66,5.62,5.31,P<0.05).Compared with the single diagnosis of FA value and ADC value,the combination of the two has higher diagnostic value for patients with obvious signs of lumbosacral nerve root entrapment(Z=4.01,3.84,P<0.05).Conclusion Patients with obvious signs of lumbosacral nerve root compression have lower FA value and higher ADC value on the affected side when compared with healthy people.The combination of FA value and ADC value has higher diagnostic value for patients with obvious lumbosacral nerve root compression signs.

关 键 词：弥散张量成像 腰椎间盘突出 腰骶部神经根卡压 各向异性分数 表现扩散系数 

分 类 号：R445.2[医药卫生—影像医学与核医学] R681.53[医药卫生—诊断学]