Title | ||
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Towards a Simplified Estimation of Muscle Activation Pattern from MRI and EMG Using Electrical Network and Graph Theory. |
Abstract | ||
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Muscle functional MRI (mfMRI) is an imaging technique that assess muscles' activity, exploiting a shift in the T2-relaxation time between resting and active state on muscles. It is accompanied by the use of electromyography (EMG) to have a better understanding of the muscle electrophysiology; however, a technique merging MRI and EMG information has not been defined yet. In this paper, we present an anatomical and quantitative evaluation of a method our group recently introduced to quantify its validity in terms of muscle pattern estimation for four subjects during four isometric tasks. Muscle activation pattern are estimated using a resistive network to model the morphology in the MRI. An inverse problem is solved from sEMG data to assess muscle activation. The results have been validated with a comparison with physiological information and with the fitting on the electrodes space. On average, over 90% of the input sEMG information was able to be explained with the estimated muscle patterns. There is a match with anatomical information, even if a strong subjectivity is observed among subjects. With this paper we want to proof the method's validity showing its potential in diagnostic and rehabilitation fields. |
Year | DOI | Venue |
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2020 | 10.3390/s20030724 | SENSORS |
Keywords | Field | DocType |
MRI,EMG,graph theory,electrical network,muscle activity,forearm | Graph theory,Electrical network,Pattern recognition,Electromyography,Muscle activation,Electronic engineering,Active state,Inverse problem,Artificial intelligence,Engineering,Isometric exercise,Electrophysiology | Journal |
Volume | Issue | ISSN |
20 | 3 | 1424-8220 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
7 |
Name | Order | Citations | PageRank |
---|---|---|---|
Enrico Piovanelli | 1 | 0 | 0.34 |
Davide Piovesan | 2 | 0 | 0.34 |
Shouhei Shirafuji | 3 | 20 | 10.19 |
Becky Su | 4 | 0 | 0.34 |
Natsue Yoshimura | 5 | 0 | 0.34 |
Yousuke Ogata | 6 | 0 | 0.34 |
Jun Ota | 7 | 527 | 109.77 |