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Abstract #4948

Single port quadrature polarization of two birdcage coils for small animal imaging

Daniel Hernandez1, Jae Jun Lee2, Sang-Woo Kim2, Taewoo Nam3, Eunwoo Lee3, and Kyoung-Nam Kim4
1Neuroscience Research Institute, Gachon University, Incheon, Korea, Republic of, 2Non-clinical Center, KBIO Osong Medical Innovation Foundation, Chungbuk, Korea, Republic of, 3Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon, Korea, Republic of, 4Department of Biomedical Engineering, Gachon University, Incheon, Korea, Republic of

Synopsis

Keywords: Hybrid & Novel Systems Technology, Prenatal

Motivation: The development of hardware dedicated to pre-clinical applications that can produce high quality images for small animal MRI systems with limited transmission channels.

Goal(s): a double birdcage coil that can deliver uniform field for multiple rats, while having only one transmission channel.

Approach: Employing electromagnetic simulations, we devised a geometric arrangement comprising two birdcage coils with a leg distribution rotated relative to each other. This configuration enables the generation of uniform, high-intensity circularly polarized fields.

Results: Uniform magnetic fields were acquired with double birdcage coil with a single excitation port. These results also showed uniform field and with similar intensity between two rats.

Impact: By employing double birdcage coils with rotated leg distributions, we achieve the generation of uniform and strong circularly polarized magnetic fields. This breakthrough offers significant advancements in pre-clinical applications and has the potential to improve research in small animal MRI.

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