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. Author manuscript; available in PMC: 2015 Jun 17.
Published in final edited form as: Concepts Magn Reson Part B Magn Reson Eng. 2015 Mar 23;44(3):53–65. doi: 10.1002/cmr.b.21268

Figure 5. Coil performance maps for a transverse plane evaluated at different field strengths and for an increasing number of loop coils closely packed around a spherical sample with 8.4 cm radius, for the case of 4-fold accelerated parallel imaging.

Figure 5

Each voxel shows the SNR of the array normalized by the corresponding ultimate intrinsic SNR. Coil noise was included in the calculation of the SNR of the arrays. Mean and maximum values are reported above each map. The gray circle indicates the surface of the sphere.