Brainsight™ TMS
Brainsight™ TMS is a stereotactic image guidance system that facilitates the positioning of transcranial magnetic stimulator (TMS) coils over a subject's brain. It can display the coil and targets (derived from MRI / fMRI images) on anatomical MR images, providing an interactive navigational guide for coil positioning.
Brainsight TMS brings the power of frameless stereotaxy outside the operating room, at a cost which greatly improves accessibility. The first application of Brainsight TMS is to assist in the positioning of a transcranial magnetic stimulator (TMS) coil over a subject’s brain, a technique called Image-Guided TMS. Brainsight TMS includes the software, position sensor and all the related hardware (except the Macintosh computer) to perform Image-Guided TMS.
Small objects, called trackers, are attached to the TMS coil, and the subject. These trackers are monitored, or "seen" by an optical position sensor. This information is sent to a computer which, after a calibration procedure, displays the position and orientation of the coil on the subject's MRI.
Image-guided TMS: 3 Steps
Step 1: Identify Your Target
- Use the anatomical display, or overlay functional image information over the anatomical images to select the anatomy to stimulate.
- Import coordinates obtained from your favourite analysis software into Brainsight by registering your software's coordinate space to the Brainsight coordinate space.
- Use the annotation or the trajectory tool to define and store targets before the subject arrives.
Step 2: Position Your Coil
- A curvilinear reconstruction can be performed in minutes and provides an intuitive and informative display. The location of the coil and the target can be displayed in real time over the 3D surface.
- In the trajectory view, the vertical line represents the stimulation axis. Move your coil so that the vertical line crosses the target, where "X" marks the spot.
- Use the new bull's-eye view to easily and quickly position your coil over the target.
Use the head holder apparatus to provide a platform to comfortably hold the subject's head still and the coil in place during the stimulation run.
Step 3: Record Your Results
In addition to the real-time coil location display, the location of the coil can be recorded at any time for later review and correlation with stimulus results.
You can export any image from the Brainsight display to a PICT file for use in print or slides. For a more detailed presentation, you can record any view to a QuickTime movie and replay sequences using a movie player or embed the movie in a PowerPoint or other live computer generated presentation software.
For further information, queries or feedback, please contact brainsight.info@magstim.com
Please note that TMS is not approved for use in the USA.
Brainsight™ TMS: Brainsight Literature.pdf (378k)
