ArticleMagnetic resonance in medicine2025
A shielded 32-channel body transceiver array with integrated electronics for 7 T.
Article in Magnetic resonance in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- SAR validation of RF coils and implants in a B0-free RF safety laboratory.Medical physics · 2026Article
- Signal and Contrast Optimization With Predicted Excitations (SCOPE) for Accelerating Large FOV Body Imaging at UHF.Magnetic resonance in medicine · 2026Article
- A shielded 32-channel body transceiver array with integrated electronics for 7 T.Magnetic resonance in medicine · 2025Article
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Authors and funding
4 authors.
Funding
Abstract
purposeDevelop a 32-channel transceiver array for 7 T body imaging that incorporates an RF shield, improves SNR, lowers g-factors, and is robust to external loading.
methodsThe addition of a local RF shield was first investigated for single resonant blocks consisting of either one loop and a dipole (LD) or three loops and a dipole (3LD). A 32-channel array consisting of eight shielded 3LD blocks (32LD-SH) was constructed and validated for in-vivo use. The SNR, parallel imaging, and transmit performance were compared to a previously published 16-channel LD array (16LD). The effect of top loading was investigated by placing arms on top of the coils and measuring S-parameter changes. In vivo imaging of multiple anatomies was performed.
resultsIn single block experiments, the RF shield impacted SNR and
conclusionA 32-channel transceiver array was developed for 7 T body imaging that is insensitive to top loading and has higher SNR and lower g-factors compared to an existing 16-channel transceiver array. Despite lower transmit performance, parallel transmit optimization permitted the 32LD-SH to achieve flip angles necessary for high-quality gradient and spin echo acquisitions of target organs in the chest, abdomen, and pelvis.
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