摘要
目的探讨磁共振IDEAL和T2mapping成像技术在腰椎间盘退变中的应用价值。方法前瞻性选择有腰椎间盘退变症状的患者30例,分别进行腰椎矢状位T2 IDEAL成像、矢状位T1Flair加权成像、横轴位椎间盘T2FSE成像及矢状位T2mapping成像。在矢状位IDEAL水相位图像上,参考Pfirrmann分级方法,把L2-L3、L3-L4、L4-L5、L5-S1椎间盘进行分级,然后在正中矢状位T2 mapping图像上选择感兴趣区(ROI),测量椎间盘中髓核(NP)的T2值,进行统计学分析,比较分析椎间盘退变分级与T2值之间的相关性。结果一共测量120个椎间盘T2值,随着分级的增加,L2-S1椎间盘NP的T2值减小,Ⅳ级与Ⅴ级间差异无统计学意义(p>0.05),其余各级间差异具有统计学意义(p<0.05)。结论 IDEAL和T2 mapping成像结合起来分析,定性定量的观察椎间盘退变情况,在椎间盘退变中具有较高的应用价值。
Objective To evaluate the clinical value of magnetic resonance IDEAL and T2 mapping imaging in lumbar intervertebral disc degeneration. Methods The prospective pilot study chose 30 patients with symptoms of lumbar intervertebral disc degeneration. Sagittal T2 IDEAL imaging, sagittal T1 Flair imaging, axis intervertebral disc T2FSE and sagittal T2mapping imaging were performed. According to Pfirrmann grading method,discs from L2 to S1 were classified on the sagittal water-phase images. As regions of interest（ROI） were evaluated on water-phase images, T2 relaxation times of nucleus pulposus（NP） were measured. The correlativity between Pfirrmann grade and T2 values was analyzed using statistical analysis. Results Totally 120 discs were measured.The T2 value of NP decreased whlie the Pfirrmann grade increased. The significant diffrernces of T2 value of NP were found in all grades （p0.05）. Conclusion The IDEAL and T2 mapping imaging could be combined to analysis intervertebral disc degeneration by the way of qualitative and quantitative methods.
出处
《中国CT和MRI杂志》
2015年第2期81-83,87,共4页
Chinese Journal of CT and MRI
关键词
磁共振成像
椎间盘退变
IDEAL序列
横向弛豫时间
Magnetic Resonace Imaging Intervertebral Disc Degeneration IDEAL Sequence T2 Relaxation Time
