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Simulated representations of instantaneous field patterns for fundamental coil structures when loaded with a subject model. (a) Sagittal electric field pattern for birdcage coil. (b) Coronal electric field pattern for loop coil. (c) Sagittal electric field pattern for dipole antenna. (d) Transverse B1-field pattern for birdcage coil. (e) Transverse B1-field pattern for loop coil. (f) Transverse B1-field pattern for dipole antenna.
