For free-breathing 3D coronary angiography, we consider a new multiphase acquisition that consists of a series of short imaging blocks to reduce motion blur in the acquisition window. However, this approach poses two challenges: (1) because the alterations of readout gradient waveforms become large due to the shortened imaging window, eddy current artifacts appear in steady-state free precession imaging, and (2) motion among cardiac phases needs to be addressed. In this work, we propose a new ordering scheme to establish smooth transitions between conic interleaves. Phase-to-phase motion is estimated using self image-based navigators and corrected by motion-based reconstruction.
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