A 2D High-Pass Ladder RF Coil Architecture for UHF MRI

Submitted by elm4010 on April 29, 2021 - 3:36pm

Title	A 2D High-Pass Ladder RF Coil Architecture for UHF MRI
Publication Type	Conference Proceedings
Year of Conference	2021
Authors	Gökyar S, Voss HU, Taracila V, Robb FJL, Bernico M, Kelley D, Ballon DJ, Winkler SA
Conference Name	ISMRM Virtual Conference
Abstract	We propose a two-dimensional cylindrical high-pass ladder (2D c-HPL) volume coil architecture as a new class of radiofrequency coils to be used for 7T Body MR imaging. As a first simplified experimental proof-of-concept we show feasibility in a head sized coil. In silico results show 45% more homogeneous B1 field distribution with 25% lower specific absorption rate compared to a similar size birdcage coil. Experimental results are in good agreement with theory and numerical simulations. The proposed architecture shows promise to solve the longstanding open challenge of volume coil B1+ inhomogeneity in UHF MRI applications.