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Accuracy of robotic coil positioning during transcranial magnetic stimulation

Accuracy of robotic coil positioning during transcranial magnetic stimulation

Authors: 
Goetz SM, Kozyrkov IC, Luber B, Lisanby SH, Murphy DLK, Grill WM, Peterchev AV.
Year: 
2019
Journal: 
Journal of neural engineering
Abstract: 

OBJECTIVE:
Robotic positioning systems for transcranial magnetic stimulation (TMS)
promise improved accuracy and stability of coil placement, but there is
limited data on their performance. Investigate the usability, accuracy,
and limitations of robotic coil placement with a commercial system, ANT
Neuro, in a TMS study.
APPROACH:
21 subjects underwent a total of 79 TMS sessions corresponding to 160
hours under robotic coil control. Coil position and orientation were
monitored concurrently through an additional neuronavigation system.
MAIN RESULTS:
Robot setup took on average 14.5 min. The robot achieved low position
and orientation error with median 3.54 mm (overall, 1.34 mm without
coil-head spacing) and 3.48°. The error increased over time at a rate of
0.4%/minute for both position and orientation.

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