MR conventional sagittal-axial plane and coronal iterative decomposition of water and fat with echo asymmetry and least-squares estimation technique in diagnosis of extraforaminal lumbar disc herniation
10.13929/j.1003-3289.2001704118
- VernacularTitle:MR常规矢状位-轴位扫描与冠状位迭代分解水和脂肪的回声不对称与最小二乘法估计技术诊断椎间孔外型腰椎间盘突出症
- Author:
Junzu GENG
1
;
Xulin LIU
;
Qing CHANG
;
Changzheng FAN
;
Xiaolei SONG
;
Hongri ZHAO
Author Information
1. 滨州医学院烟台附属医院影像科
- Keywords:
Intervertebral disk displacement;
Magnetic resonance imaging;
Comparative study
- From:
Chinese Journal of Medical Imaging Technology
2018;34(2):288-292
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the diagnostic value of MR conventional sagittal-axial plane and coronal iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) technique in diagnosis of extraforaminal lumbar disc herniation (ELDH).Methods Totally 32 patients with ELDH confirmed by surgery underwent preoperative MR sagittal-axial plane and coronal IDEAL scanning.Disc herniation,nerve involvement,nerve angle,nerve deep impression,nerve thinning or truncation,nerve adhesion unsmooth and nerve swelling were analyzed between the two methods.Results Disc herniation,nerve involvement and number of reduction or disappearance of surrounding fat had no statistically significant differences between the two methods (all P＞0.05),while nerve angle,nerve deep impression,nerve thinning or truncation,nerve adhesion unsmooth and nerve swelling were significantly different between the two methods (all P＜0.05).Surgical operation confirmed that 32 patients with nerve compression were consistent with findings by IDEAL.Conclusion MR sagittal-axial plane and coronal IDEAL both can be used to diagnose ELDH,but their display ability of nerve compression is different.Coronal IDEAL is superior to conventional sagittal-axial plane and is an effective imaging method,being able to display nerve compression more intuitively,clearly and comprehensively.
