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A new class of a receive-only 2 T 4-element rotary phased array head coil has been proposed for MRI brain imaging applications. Coil elements of the rotary phased array head coil have "paddle-like" structures consisting of a pair of main conductors located on opposite sides, inserted equi-angularly around and over the head. Using such a unique design, the proposed rotary head coil can improve...
Due to complex field/tissue interactions, high-field magnetic resonance (MR) images suffer significant image distortions that result in compromised diagnostic quality. A new method that attempts to remove these distortions is proposed in this paper and is based on the use of transceiver-phased arrays. The proposed system uses, in the examples presented herein, a shielded four-element transceive-phased...
To better simulate RF field behavior in the human head for MRI applications, dyadic Green's function (DGF)/method of moment (DGF/MOM) -based solutions of the electromagnetic field (EMFs) inside a head-sized, stratified sphere in different MRI coils are presented. The lossy, multilayered spherical head phantom has similar radial conductivity and permeability profiles as human head and is loaded in...
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