Ressonância Magnética Funcional (fMRI)

The use of functional MRI (fMRI) in neurophysiological pain research and, in a lesser extent, in clinical practice, is an ever-growing field. Research efforts in this field have uncovered the mechanism of brain response to different types of stimuli in health and disease. Imaging pain requires thermal stimulators that can safely and accurately deliver noxious and non-noxious stimuli within a neuroimaging environment for extended periods of time.

Functional MRI (fMRI)

Our solution

Medoc’s TSA2 can be suited with fMRI-compatible thermodes to administer thermal painful and non-painful stimuli within the scanner. The TSA2 can also be used with an fMRI-compatible CHEPS thermode, capable of delivering very rapid heat or cold stimuli. Our TSA2 system has TTL-in and -out capabilities for precise synchronization with MRI scanner. The stimuli can also be controlled using third-party software such as MATLAB™ and E-Prime™, providing flexible and advanced control over the experimental parameters and allowing synchronization with additional stimuli and measures.

TSA2 can be equipped with two thermodes which allow synchronized stimulation of multiple body sites at the same time, from one device and software interface. This can serve for advanced protocols like conditioned pain modulation (CPM) or spatial summation.

Medoc’s fMRI systems are used by researchers at the Harvard University Medical School, University of Duisburg-Essen, the University of Toronto, the University of Munich, the University of Birmingham in Alabama, University of Colorado Boulder, the Veterans General Hospital, and National Yang-Ming University in Taipei, and in over 150 other locations worldwide.

Using the TSA2 in the fMRI environment

Our TSA2 system is suitable for use in an fMRI setting with its MRI conditional accessories. The device is situated outside of the Faraday cage while thermodes are inserted into the scanner environment via the penetration panel.

Our fMRI-compatible solutions include

    •  fMRI-conditional thermodes 30x30mm / 16x16mm / 24×24 mm CHEPS thermode
    • Dual thermode set-up for simultaneous stimulation by two thermodes through one TSA2 device
    • 13m cable
    • TTL Output for triggering external device
    • TTL Input for triggering the TSA 2 from third-party device
    • Standard external control capabilities