Figure 2
From: Comparison of three multichannel TX/RX coils for anatomic and functional CMR at 7.0T
Survey of the parallel imaging performance of the 4-channel, 8-channel, and 16-channel TX/RX coil. a) Quantitative SNR maps observed for GRAPPA reconstruction using an acceleration factor of R=4 for the 4-ch (left), the 8-ch (middle), and the 16-ch TX/RX (right) coil. b) Geometry factor maps derived from GRAPPA reconstruction for an acceleration factor of R=4 for the 4-channel (left), the 8-channel (middle), and the 16-channel (right) TX/RX coil with a region-of interest indicating the position of the heart. c) Comparison of gfactor (mean value and standard deviation) obtained for the 4-, 8-, and 16-channel TX/RX coils for left basal, middle midventricular, and right apical short-axis views