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Northern Digital Inc. (NDI) Polaris Vicra or Spectra optical measurement systems may be used to record spatial data of interest such as the position and tilt of the TMS coil.
Individualized probabilistic head model computation
The SofTaxic system is unique in generating an individualized probabilistic head model that can be used to guide coil positioning in the absence of individual MRI data. This individualized head model preserves the anatomical scalp-brain correlates of a mean MR template providing an accurate set of estimated MRI data specific to the subject under examination.
Fast, automatic, reproducible and guided procedures
Individual or estimated MRI data is rapidly processed in a step by step fashion to generate structural information of interest for a TMS neuronavigation session:
- MR craniometric marker locations
- 3D MR-constructed scalp and brain models
- Talairach space matrix
- TMS Induced electric field matrix
High spatial accuracy in the localization of the target
A best-fit algorithm is applied to refine the registration transformation used to map coil data and structural information.
Up to 2 TMS coils
The SofTaxic system can handle up to 2 TMS coils simultaneously. The coil can be calibrated manually or automatically using dedicated devices.
Complete TMS spatial information
During a TMS session the system shows and records all spatial information of interest such as: coil focus position and brain target area (both referred to MR and Talairach spaces) and coil focus-brain target distance. Previously recorded TMS data can be imported.
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