1.5T磁共振T2 mapping成像诊断腰椎间盘退行性变的价值

目的 探讨1.5T磁共振T2 mapping成像在腰椎间盘退行性变之中的诊断价值.方法 选择2018年1月—2019年1月在本院行1.5T磁共振检查的50例腰背疼痛患者当做研究对象,所有患者均进行矢状位T1WI、T2WI、横断位T2WI、正中矢状位T2 mapping成像.以Pfirrmann标准作为依据,进行腰椎间盘...

The Value of 1.5 T Magnetic Resonance T2 Mapping Imaging in the Diagnosis of Lumbar Disc Degeneration

Objective To investigate the diagnostic value of 1.5 T magnetic resonance T2 mapping imaging in lumbar disc degeneration.Methods From January 2018 to January 2019,50 patients with back pain were studied by 1.5T MRI in our hospital.All patients were treated with sagittal T₁WI,T₂WI,transverse T₂WI and median sagittal T2 mapping.Based on the Pfirmann standard,the lumbar disc was graded and the T2 values of nucleus pulposus,fibrous ring leading edge and trailing edge were measured respectively.The leading edge and trailing edge T2 values were compared and the correlation between T2 values,grading,and age was analyzed.Meanwhile,15 patients were selected for the second magnetic resonance examination at intervals of 6 months to compare the differences between the two disc T2 values.Results There was no significant difference between gradeⅣand gradeⅤ.There were significant differences among the other levels(P<0.05).There was a positive correlation between age and grade,a negative correlation between age and T2 value,and a negative correlation between T2 value and grade;there was no significant difference in T2 in the anterior edge,posterior edge and nucleus pulposus of the disc in 15 patients,P>0.05.Conclusion Using 1.5 T magnetic resonance T2 mapping imaging for lumbar disc degeneration can achieve effective quantitative evaluation,especially the nucleus pulposus T2 value can effectively reflect the difference of degeneration degree ofⅠ~Ⅳdisc,which is worth applying.