Keywords: Task/Intervention Based fMRI, fMRI (task based), spinal cord, MB-SWIFT, electrophysiology, sciatic nerve
Motivation: Zero echo time MB-SWIFT fMRI is an excellent tool for spinal cord studies due to its minimal sensitivity to susceptibility artefacts and motion, however, its correlation with electrical activity has not been established.
Goal(s): To determine the spatial and temporal characteristics of MB-SWIFT fMRI response in spinal cord and its dependence on neuronal activity.
Approach: MB-SWIFT fMRI and electrical responses were simultaneously recorded from the rat spinal cord during electrical stimulation of a hind paw under urethane anesthesia.
Results: Robust fMRI and electrical responses were measured during hind-paw stimulation. The two signals were correlated similarly to what has been observed in the brain.
Impact: MB-SWIFT fMRI provides a valuable experimental tool for assessing stimulation evoked response in the spinal cord, validated here to have good agreement with electrical activity.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords