Prospective motion correction of 3D EPI data for functional MRI using optical tracking.

An approach to using the XPACE camera system for prospective motion correction of MRI data was implemented for a 3D echo-planar imaging pulse sequence. The method uses a high frame rate camera to track the six degrees-of-freedom movement of a marker that is attached to the patient. This information is fed to the scanner host computer to dynamically update the imaging gradients necessary for rigid body realignment of the data to be acquired. The PMC method was tested for the application of acquiring 3D EPI data for functional MRI studies where high SNR and temporal stability are of paramount importance.

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.

Click here for more information on becoming a member.