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. Author manuscript; available in PMC: 2023 Apr 1.
Published in final edited form as: Magn Reson Med. 2021 Nov 26;87(4):2074–2088. doi: 10.1002/mrm.29096

Figure 7.

Figure 7.

B1+-SAR efficiency comparison. Axial B1+-SAR efficiency map of (A) NODESTx antenna, (B) fractionated dipole, and (C) loop coil. The vertical dashed lines in (A-C) show the location of the profiles used in (D-E). (D) B1+-SAR efficiencies of the three structures with increasing distance from the element. (E) Improvement of B1+-SAR efficiency with increasing distance achieved by the NODESTx compared to the fractionated dipole and loop. The vertical dashed lines in (D-E) indicate the start and end ranges over which the NODESTx were optimized and represent the approximate depth of the anatomy of interest (i.e. the spine).