T2-mapping imaging in assessment of lumbar dorsal extensors group function before and after exercises
10.13929/j.1003-3289.201711036
- VernacularTitle:T2-mapping成像评估腰部背伸肌群运动前后功能状态
- Author:
Yuanming JIANG
1
;
Jialong ZHOU
;
Yilong HUANG
;
Zhenguang ZHANG
;
Jialu WEI
;
Jia ZHANG
;
Wei ZHAO
;
Bo HE
Author Information
1. 昆明医科大学第一附属医院影像科
- Keywords:
Paraspinal muscles;
Magnetic resonance imaging;
T2-mapping;
Area
- From:
Chinese Journal of Medical Imaging Technology
2018;34(5):755-759
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the value of T2-mapping imaging in assessment of lumbar dorsal extensors group (multifidus,longissimus and iliocostalis) function before and after exercises in healthy volunteers.Methods Totally 50 healthy young volunteers underwent T2-mapping imaging before and after exercises.T2 value and cross-section area (CSA) of multifidus,longissimus and iliocostalis were measured at the level of L3 and 14 superior border.Differences of CSA and T2 value were compared between left and right side muscles before and after exercises.The correlation between CSA difference and T2 difference before and after exercises was analyzed.Results At the level of L3 and L4 superior border,CSA and T2 value of bilateral multifidus,longissimus and iliocostalis increased after exercises (all P＜0.05).At the level of L3 superior border,CSA after exercises and CSA difference of left multifidus were higher than those of right side (all P＜0.05).Before exercises,there were statistical differences of T2 values on left and right side of longissimus and iliocostalis at the level of L3 superior border and the longissimus at the level of L4 superior border (all P＜0.05).Positive correlations were found between CSA difference and T2 difference on bilateral iliocostalis at the level of L3 and L4 superior border,as well as on bilateral multifidus at the level of L4 superior border (all P ＜0.05).Conclusion T2-mapping imaging can be used to assess the activity state of lumbar dorsal extensors group before and after exercises.
