Neuromuscular diseases can lead to characteristic changes in the anatomy of motor units (MU). In this study we developed an MR approach to image motor unit activity. In-scanner electrical stimulation of MU was synchronized to a pulsed-gradient spin-echo imaging sequence sensitive to microscopic contraction of muscle fibers. Experimental data was compared to a simple theoretical model and scan parameters evaluated. The spatial pattern of muscle fibers forming different MU was imaged for the first time in healthy controls.
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