1.5T磁共振T2 mapping成像在腰椎间盘退行性变中的诊断价值

发布时间：2018-01-26 00:39

  本文关键词： 椎间盘移位 腰椎 磁共振成像　出处：《中国医学影像学杂志》2017年07期 　论文类型：期刊论文

【摘要】：目的评价MRI T2 mapping成像技术对腰椎间盘退行性变的诊断价值。资料与方法前瞻性纳入2013年10月-2015年12月因腰背部疼痛于复旦大学附属上海市第五人民医院就诊并行腰椎1.5T MRI检查的患者100例。常规矢状位T1WI及T2WI、横断位T2WI,并行正中矢状位T2 mapping成像。根据Pfirrmann标准将475个腰椎间盘分级,测量髓核(NP)及纤维环(AF)前、后缘的T2值。分别比较各级NP和AF前、后缘T2值,并分析T2值、年龄以及分级间的相关性。同时选取30例患者间隔半年行第2次MRI检查,比较前后2次椎间盘T2值的差异。结果腰椎间盘各分级NP的T2值除IV级与V级间差异无统计学意义(P0.05)外,其余各级间差异均有统计学意义(P0.05);腰椎间盘NP T2值与各分级呈高度负相关(r=-0.77);30例腰痛患者间隔半年测得椎间盘AF前、后缘及NP T2值间差异均无统计学意义(P0.05)。结论 T2 mapping成像技术能够定量评估腰椎间盘退行性变程度,尤其是NP的T2值能够较好地反映Ⅰ~Ⅳ级椎间盘退行性变程度的差异,因而可以为诊断腰椎间盘退行性变提供影像学依据。
[Abstract]:Objective to evaluate MRI T2. Mapping imaging technique in the diagnosis of lumbar intervertebral disc degeneration. Data and methods data and methods prospectively included in Shanghai affiliated to Fudan University from October 2013 to December 2015 due to lumbar and back pain. Five people's Hospital with Lumbar vertebrae 1.5T. The sagittal T1WI and T2WI were performed in 100 patients with MRI. Transverse T _ 2WI was performed and T _ 2 mapping was performed on the median sagittal position. 475 lumbar intervertebral discs were graded according to Pfirrmann criteria. The T _ 2 values of the nucleus pulposus (NPN) and the anterior and posterior edge of the nucleus pulposus were measured. The T _ 2 values before and after NP and AF were compared and analyzed respectively. The correlation between age and grade. At the same time, 30 patients were examined with MRI for the second time half a year. Results the T2 value of each grade of lumbar intervertebral disc was not significantly different between grade IV and grade V (P 0.05). The differences among other levels were statistically significant (P 0.05). The NP-T2 value of lumbar intervertebral disc was negatively correlated with each grade. The intervertebral disc AF was measured in 30 patients with low back pain at intervals of six months. There was no significant difference between the posterior margin and NP T2. Conclusion T2 mapping imaging can quantitatively evaluate the degenerative degree of lumbar intervertebral disc. Especially, the T2 value of NP can reflect the difference of degenerative degree of intervertebral disc between grade 鈪，

本文编号：1464153