Electric field and SAR reduction in high-impedance RF arrays by using high permittivity materials for 7T MR imaging

• Published in: PloS one Vol. 19; no. 7; p. e0305464
• Main Authors: Bhosale, Aditya A., Zhao, Yunkun, Zhang, Xiaoliang
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 03.07.2024; Public Library of Science (PLoS)
• Subjects: Arrays; Biology and Life Sciences; Brain; Capacitance; Coils; Coupling; Decoupling; Design; Dielectrics; Electric fields; Electric Impedance; Engineering and Technology; Equipment Design; Experiments; High impedance; Humans; Image quality; Impedance; Magnetic resonance imaging; Magnetic Resonance Imaging - methods; Medical imaging; Medicine and Health Sciences; Phantoms, Imaging; Physical Sciences; Radio Waves; Research and Analysis Methods; Safety; Safety regulations; Signal to noise ratio; Simulation; Wavelengths

In the field of ultra-high field MR imaging, the challenges associated with higher frequencies and shorter wavelengths necessitate rigorous attention to multichannel array design. While the need for such arrays remains, and efforts to increase channel counts continue, a persistent impediment—inter-e...