Acquired images of excitation field for planar SEA array. The phase offset is set to be (A) 0°, (B) 180°, (C) 20° and (D) 340°. Images are acquired using standard spin echo pulse sequence with TR 500 ms, TE 30 ms and FOV 140 mm × 140 mm in the axial slice. Please note that although the images are acquired fully encoded, the transmit pattern is achieved in a single shot. SEA, single echo acquisition.