Although it is theoretically possible to prospectively correct for deteriorative effects of known rigid body motions in any arbitrary MRI pulse sequence, no practical open implementation was reported to date. In this work we extend Puseq, an open-source pulse sequence development environment with a prospective motion correction capability based on external tracking. Real-time motion information in six degrees of freedom is received from an optical motion tracking system by libXPACE (a generic library for eXternal Prospective Acquisition CorrEction). The framework is capable of both motion correction and motion artifact simulation of arbitrary pulse sequences saved in Pulseq format.
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