Correlation between Changes in the Transverse Relaxation Time and Electromyographic Measurements of the Superficial Masseter and Temporal Muscles

We analyzed the correlations between the T2 shift and integrated electromyographic (iEMG) values in the masseter and temporal muscles. Six healthy adults engaged in a clenching task over two durations at various bite forces. We evaluated the mean T2 shift per voxel and assessed their correlations wi...

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Bibliographic Details
Published in:Magnetic Resonance in Medical Sciences 2020, Vol.19(3), pp.268-275
Main Authors: Fujii, Tsuyoshi, Yamaguchi, Satoshi, Sung, Yul-wan, Watanabe, Makoto, Hattori, Yoshinori
Format: Article
Language:English
Subjects:
Correlation analysis
Electromyography
magnetic resonance imaging
masticatory muscle
Muscles
Regression analysis
Regression coefficients
Regression models
Relaxation time
Technical Note
transverse relaxation time
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Summary:We analyzed the correlations between the T2 shift and integrated electromyographic (iEMG) values in the masseter and temporal muscles. Six healthy adults engaged in a clenching task over two durations at various bite forces. We evaluated the mean T2 shift per voxel and assessed their correlations with iEMG using a linear mixed model. The regression coefficients were different for each muscle type, similar for the left and right sides, and decreased upon doubling duration.
ISSN:1347-3182
1880-2206
DOI:10.2463/mrms.tn.2019-0035