An Integrated B₁ ⁺ Efficient Triple-Tuned (²H/²³Na/³¹P) Body Coil at 7T.

ABSTRACT: The electrical loss mechanisms of multi-tuned birdcages were studied to design an efficient triple-tuned (²H/²³Na/³¹P) body coil at 7T. The sources of RF power loss were investigated in three aspects, namely, resistive losses in copper conductors, dielectric losses of capacitors, and resonance-induced losses in tank circuits of multi-tuned circuits all normalized to the intrinsic losses in tissue of a single-tuned birdcage. A 24-leg triple-tuned (²H/²³Na/³¹P) high-pass birdcage coil with two out of three short circuits in the end rings (i.e., eight effective legs) connected to tuning capacitors (16caps-birdcage) was compared with a classical 24-leg double-tuned (²H/³¹P) birdcage coil (48caps-birdcage).

SUBMITTER: Kahraman-Agir B 

PROVIDER: S-EPMC12331556 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature