Three-dimensional Constructive Interference Steady State Sequence in Evaluation Dorsal Root Ganglion Compression in Lumbar Disc Herniation
10.3969/j.issn.1005-5185.2014.10.014
- VernacularTitle:腰椎间盘突出症脊神经节受累程度的三维磁共振结构相干稳态成像序列评估
- Author:
Hui LIANG
;
Jiufa CUI
;
Feng DUAN
;
Yuanyuan ZHENG
;
Lihua HOU
;
Yang LI
;
Dapeng HAO
- Publication Type:Journal Article
- Keywords:
Intervertebral disk displacement;
Lumbar vertebrae;
Ganglia spinal;
Magnetic resonance imaging;
Three-dimensional constructive interference steady state
- From:
Chinese Journal of Medical Imaging
2014;(10):773-776
- CountryChina
- Language:Chinese
-
Abstract:
Purpose To investigate the diameter change of dorsal root ganglion (DRG) in lumbar disc herniation using three-dimensional MR neurography. Materials and Methods Sixty-ifve patients with lumbar disc herniation and 30 healthy volunteers were selected. Bilateral DRG diameter was measured using MR three-dimensional constructive interference steady state (3D-CISS) sequence at the level of L3-S1 in the control group and at the level of herniation disc in patient group including central and lateral subgroups. The relationship between the sagittal index and DRG diameter at the level of herniation disc was analyzed. Results In the control group, the DRG diameters increased from the level of L3 to S1. The DRG diameters of the central subgroup were bigger than those of the control group (t=-2.485--2.253, P<0.05). The DRG diameters of the lateral subgroup were bigger on the diseased side than the contralateral side (t=1.956-2.432, P<0.05). The DRG diameters of the contralateral side in lateral subgroup were slightly bigger than those of control group without statistical signiifcance (t=-1.248--0.981, P>0.05). The sagittal index was not correlated with DRG diameter. Conclusion 3D-CISS sequence clearly demonstrates morphological changes of lumbosacral nerve root and measures its diameter.
