ArticleJournal of magnetic resonance (San Diego, Calif. : 1997)2014
Orthogonal resonators for pulse in vivo electron paramagnetic imaging at 250 MHz.
Article in Journal of magnetic resonance (San Diego, Calif. : 1997), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Rapid scan EPR: Automated digital resonator control for low-latency data acquisition.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2022Article
- EPR Everywhere.Applied magnetic resonance · 2021Review
- 250 MHz Rapid Scan Cross Loop Resonator.Applied magnetic resonance · 2019Article
- Resonators for In Vivo Imaging: Practical Experience.Applied magnetic resonance · 2017Article
- Oxygen Sensing with Perfluorocarbon-Loaded Ultraporous Mesostructured Silica Nanoparticles.ACS nano · 2017Article
- EPR Imaging Spin Probe Trityl Radical OX063: A Method for Its Isolation from Animal Effluent, Redox Chemistry of Its Quinone Methide Oxidation Product, and in Vivo Application in a Mouse.Chemical research in toxicology · 2016Article
- Decoupling of excitation and receive coils in pulsed magnetic resonance using sinusoidal magnetic field modulation.Journal of magnetic resonance (San Diego, Calif. : 1997) · 2016Article
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3 authors.
Funding
Abstract
A 250 MHz bimodal resonator with a 19 mm internal diameter for in vivo pulse electron paramagnetic resonance (EPR) imaging is presented. Two separate coaxial cylindrical resonators inserted one into another were used for excitation and detection. The Alderman-Grant excitation resonator (AGR) showed the highest efficiency among all the excitation resonators tested. The magnetic field of AGR is confined to the volume of the detection resonator, which results in highly efficient use of the radio frequency power. A slotted inner single loop single gap resonator (SLSG LGR), coaxial to the AGR, was used for signal detection. The resulting bimodal resonator (AG/LGR) has two mutually orthogonal magnetic field modes; one of them has the magnetic field in the axial direction. The resonator built in our laboratory achieved 40 dB isolation over 20 MHz bandwidth with quality factors of detection and excitation resonators of 36 and 11 respectively. Considerable improvement of the B1 homogeneity and EPR image quality in comparison with reflection loop-gap resonator of similar size and volume was observed.
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