Feiyu Chen1, Tao Zhang1,2, Joseph Y. Cheng1,2, John M. Pauly1, and Shreyas S. Vasanawala2
1Electrical Engineering, Stanford University, Stanford, CA, United States, 2Radiology, Stanford University, Stanford, CA, United States
In
this work, we propose a motion-robust auto-calibrating Wave-CS technique. This technique uses the wave-encoded center k-space and the known point-spread-function (PSF) of wave-encoding
to reconstruct a Cartesian central k-space for calibration. The coil sensitivity maps are subsequently estimated with ESPIRiT for CS-SENSE reconstruction of under-sampled k-spaces. Results show this approach can reduce the motion artifacts and the
aliasing artifacts due to sensitivity variations between the calibration and accelerated wave-encoded acquisitions.
