Keywords: Motion Correction, Motion Correction, hybrid motion correction
Motivation: Prospective motion correction (PMC) techniques face challenges due to inherent latency and filter-induced delays, particularly impactful in cases of periodic motion, like breathing.
Goal(s): This study examines how periodic motion affects PMC with increased latency and employs retrospective techniques to compensate for latency-induced discrepancies.
Approach: Brain MRI scans were conducted on a volunteer performing exaggerated breathing using a PMC-enabled sequence. Retrospective motion correction was used to reverse latency-induced errors and compensate for residual motion.
Results: The hybrid approach combining PMC and RMC yielded superior results when compared to no correction and PMC-only, emphasizing the importance of addressing latency in motion correction for MRI.
Impact: Breathing motion can lead to suboptimal results in prospective motion correction. Implementing this technique broadens PMC's applicability, aiding its integration into clinical practice.
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