You are here

pre-surgical mapping

pre-surgical mapping

visor2 allows users to evaluate functional organization of the human cortex using non-invasive, navigated transcranial magnetic stimulation (TMS). This innovative solution comes with intuitive workflows and high-precision neuronavigation, supporting stimulators from all major TMS manufacturers.

While fMRI has often been seen as the standard tool in pre-surgical evaluation, it brings with it high costs and restrictions in application. The pre-surgical functional mapping of visor2, offers an easy-to-use and efficient alternative. It enables noninvasive, functional mapping of the motor and speech related brain regions with TMS. visor2 provides complete support in the preparation of image data and targets, execution of stimulation protocols and processing of brain mapping results.


  • Time-saving and cost-efficient functional mapping with navigated TMS.
  • Intuitive step-by-step workflows for motor and speech mapping.
  • Reliable high-precision optical tracking technology.
  • Fully supports navigated single-pulse and repetitive TMS.
  • Real-time visual feedback (e.g. MEP responses) overlaid upon 3D representation of either patient’s own MRI or standard MRI.
  • Highly flexible and configurable workflows (e.g. import of custom image stacks for object-naming protocols).
  • Colored DICOM export of mapped functional hotspots for further review and processing in surgical navigation systems.

Speech mapping

visor2 can be used to map speech areas via visual naming tasks for use in pre-surgical evaluation or in clinical research related to speech production. visor2 delivers a dedicated three-step workflow to support the user in this complex procedure. During the first step, an easily customizable stack of images is presented to the patient in a naming task. Both audio and video recordings of speech and facial reactions to each image are recorded.

In the second step, the same naming task is repeated and recorded while navigated repetitive TMS (rTMS) is applied to the eloquent cortical speech area. When short bursts of rTMS are applied to cortical speech sites during speech production, either speech errors (e.g. speech arrest) or accurate responses are noted.

In the third step, recordings from step one and step two are compared, and responses in step two are individually categorized according to the specific type of speech response. Categories can be customized to fit each user’s specific needs. After classification, response maps can be overlaid onto the subject’s anatomical MRI and exported in 3D image formats (e.g. DICOM) for use in surgical procedures.

Motor mapping

visor2 integrates navigated TMS and EMG recording with real-time 3D visualization of stimulated brain areas. Evoked motor responses are projected onto patients’ anatomical MRI to create functional maps relating to the relevant cortical areas.

Supported by a real-time estimation of TMS-induced electrical fields, visor2 calculates and highlights targeted locations. The evoked motor responses are processed online and the calculated amplitude is projected onto an image of the stimulated cortical location to generate functional maps. The generated maps or single MEP responses can be exported in 3D image formats such as in DICOM for use in surgical navigation systems.

visor2 integrates navigated TMS
and multi-channel EMG recordings

  Up to 64 EEG and 6 EMG extension module
channels are supported.

  An EMG response map is generated
on the MRI and can be exported in
DICOM format.

Download brochure.







visor2 software CE marked as a medical device in the EU, according to MDD 93/42/EEC, class IIa. Medical Device License (MDL) issued by Health Canada. Manufactured by eemagine GmbH, Berlin, Germany, ISO 13485 certified. ANT Neuro and eemagine are part of the neuromotion group. Outside the EU and Canada, intended for research and educational use only. In the United States, limited by federal law to investigational use only. *PowerMAG is manufactured by MAG&More GmbH, see separate brochure for regulatory information.

© Copyright 1999 - 2022 ANT Neuro | | Terms of Use | Privacy Statement | Contact | USA Customers