Robotized {TMS} for motion compensated navigated brain stimulation

Type of publication:  Artikel in einem Konferenzbericht
Buchtitel: Computer Assisted Radiology and Surgery (CARS), 20th International Congress
Jahr: 2006
Monat: June 28 - July 1
Ort: Osaka, Japan
Notiz: Transcranial Magnetic Stimulation
Abriss: This paper describes the setup and first applications of a computer-aided robotized Transcranial Magnetic Stimulation (TMS) system for motion compensated brain stimulation. The system uses a registration of the cranium to its 3D magnetic resonance imaging (MRI) data and constant infrared stereo optical tracking to establish a real-time link between the digital anatomical data and the head. Based on this registration the robot implements the planned stimulation. Tracking of the head and subsequent refinement of the robot position ensures that the stimulation coil is always at the right position relative to the cranium. The second part of the paper describes a novel approach to brain mapping. Assuming a functional relationship between electric field strength at the representation site of a muscle in the brain and its MEP response to stimulation, an algorithm is derived to calculate the representation site. The algorithm uses a map of the produced electric field of the TMS coil which is measured in a separate experiment. The results of a first mapping experiment that shows good correspondence between fMRI and TMS prediction is presented at the end of the paper.
Nutzerfelder: file={mtbgs_06.pdf:mtbgs_06.pdf:PDF}
Schlagworte: electric field measurement, human brain mapping, robotic motion compensation, robotized navigated transcranial magnetic stimulation
Autoren: Matthäus, Lars
Trillenberg, Peter
Bodensteiner, Christoph
Giese, Alf
Schweikard, Achim
  • mtbgs_06.pdf