PMID- 17019856
OWN - NLM
STAT- MEDLINE
DCOM- 20061120
LR  - 20161019
IS  - 0018-9294 (Print)
IS  - 0018-9294 (Linking)
VI  - 53
IP  - 10
DP  - 2006 Oct
TI  - Simulation of intramuscular EMG signals detected using implantable myoelectric 
      sensors (IMES).
PG  - 1926-33
AB  - The purpose of this study was to test the feasibility of recording independent 
      electromyographic (EMG) signals from the forearm using implantable myoelectric 
      sensors (IMES), for myoelectric prosthetic control. Action potentials were 
      simulated using two different volume conductor models: a finite-element (FE) 
      model that was used to explore the influence of the electrical properties of the 
      surrounding inhomogeneous tissues and an analytical infinite volume conductor 
      model that was used to estimate the approximate detection volume of the implanted 
      sensors. Action potential amplitude increased progressively as conducting 
      electrodes, the ceramic electrode casing and high resistivity encapsulation 
      tissue were added to the model. For the muscle fiber locations examined, the mean 
      increase in EMG root mean square amplitude when the full range of material 
      properties was included in the model was 18.2% (+/-8.1%). Changing the 
      orientation of the electrode with respect to the fiber direction altered the 
      shape of the electrode detection volume and reduced the electrode selectivity. 
      The estimated detection radius of the IMES electrode, assuming a cylindrical 
      muscle cross section, was 4.8, 6.2, and 7.5 mm for electrode orientations of 0 
      degree, 22.5 degrees, and 45 degrees with respect to the muscle fiber direction.
FAU - Lowery, Madeleine M
AU  - Lowery MM
AD  - School of Electrical, Electronic and Mechanical Engineering, University College 
      Dublin, Belfield, Dublin 4, Ireland. madeleine.lowery@ucd.ie
FAU - Weir, Richard F ff
AU  - Weir RF
FAU - Kuiken, Todd A
AU  - Kuiken TA
LA  - eng
GR  - R01 EB001672/EB/NIBIB NIH HHS/United States
GR  - R01 HD043137-03/HD/NICHD NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PL  - United States
TA  - IEEE Trans Biomed Eng
JT  - IEEE transactions on bio-medical engineering
JID - 0012737
SB  - IM
MH  - Action Potentials/*physiology
MH  - Computer Simulation
MH  - *Computer-Aided Design
MH  - Electric Stimulation/*instrumentation/methods
MH  - *Electrodes, Implanted
MH  - Electromyography/*instrumentation/methods
MH  - Feasibility Studies
MH  - Humans
MH  - *Models, Biological
MH  - Muscle, Skeletal/innervation/*physiology
EDAT- 2006/10/06 09:00
MHDA- 2006/12/09 09:00
CRDT- 2006/10/06 09:00
PHST- 2006/10/06 09:00 [pubmed]
PHST- 2006/12/09 09:00 [medline]
PHST- 2006/10/06 09:00 [entrez]
AID - 10.1109/TBME.2006.881774 [doi]
PST - ppublish
SO  - IEEE Trans Biomed Eng. 2006 Oct;53(10):1926-33. doi: 10.1109/TBME.2006.881774.