Extending GRAPPA kernels to 4D: application on time-resolved 3D phase contrast imaging
نویسندگان
چکیده
Fig.4: Velocity time courses in a small region-ofinterest in the descending aorta for different reconstruction types. Fig.5: Exemplary plot of pixel-wise velocities of full k-space data vs. PEAKGRAPPA with a 4D-kernel with Rnet=7.2. R Rnet NACS RMSE [%] r2 GRAPPA 4 2.4 24*48 22.6 0.38 PEAK 3D-kernel 8 7.2 12*8 8.7 0.95 PEAK 4D-kernel 8 7.2 12*8 8.1 0.93 PEAK 4D-kernel 12 9.5 12*8 10.4 0.89 Extending GRAPPA kernels to 4D: application on time-resolved 3D phase contrast imaging
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