文档介绍：3D internal muscle activities imaging based on multi-
channel surface EMG recordings
Surface EMG-based muscle activities imaging technqiue
Yingchun Zhang Gerald W. Timm
Department of Urologic Surgery Department of Urologic Surgery
University of Minnesota University of Minnesota
Minneapolis, Minnesota USA Minneapolis, Minnesota USA
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Abstract— A surface electromyography (EMG) based muscle source imaging technique with the subject-specific
activities imaging (sEMG-MAI) approach has been developed electrophysiological pelvic modeling approach to minimally
using the bioelectrical source reconstruction approach to invasively image periurethral muscle activities from intra-anal
minimally invasively reconstruct muscle activities in the three high-density surface EMG (HD-sEMG) recordings. The CV of
dimensional (3D) space of the periurethral muscles (including MUAPs will be accurately calculated puting the delay
urethral and anal sphincter, and the surrounding muscles) of the of muscle activity propagation from the spatiotemporally
female pelvic floor from multi-channel intra-anal surface EMG reconstructed periurethral muscle activities as a quantitative
recordings. The sEMG-MAI approach is being used to index eliciting periurethral fatigue in women.
investigate function of the pelvic muscles and urethral sph