ArticleMagnetic resonance in medicine2020
Improving radiofrequency power and specific absorption rate management with bumped transmit elements in ultra-high field MRI.
Article in Magnetic resonance in medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 25 citations in OpenAlex.
- SAR validation of RF coils and implants in a B0-free RF safety laboratory.Medical physics · 2026Article
- First In VivoMagnetic resonance in medicine · 2026Article
- A shielded 32-channel body transceiver array with integrated electronics for 7 T.Magnetic resonance in medicine · 2025Article
- A 128-channel receive array with enhanced signal-to-noise ratio performance for 10.5T brain imaging.Magnetic resonance in medicine · 2025Article
- Performance Evaluation of a Custom-Designed Contrast Media Injector in a 5-Tesla MRI Environment.Bioengineering (Basel, Switzerland) · 2025Article
- RF-induced heating of interventional devices at 23.66 MHz.Magma (New York, N.Y.) · 2023Article
- Tier-based formalism for safety assessment of custom-built radio-frequency transmit coils.NMR in biomedicine · 2023Article
- Bench to bore ramifications of inter-subject head differences on RF shimming and specific absorption rates at 7T.Magnetic resonance imaging · 2022Article
- Ultra-high-field MR in Prostate cancer: Feasibility and Potential.Magma (New York, N.Y.) · 2022Review
- A nine-channel transmit/receive array for spine imaging at 10.5 T: Introduction to a nonuniform dielectric substrate antenna.Magnetic resonance in medicine · 2022Article
- The Coax Dipole: A fully flexible coaxial cable dipole antenna with flattened current distribution for body imaging at 7 Tesla.Magnetic resonance in medicine · 2022Article
- Displacement current distribution on a high dielectric constant helmet and its effect on RF field at 10.5 T (447 MHz).Magnetic resonance in medicine · 2021Article
- Accelerating the co-simulation method for the design of transmit array coils for MRI.Magma (New York, N.Y.) · 2021Article
- The "Loopole" Antenna: A Hybrid Coil Combining Loop and Electric Dipole Properties for Ultra-High-Field MRI.Concepts in magnetic resonance. Part B, Magnetic resonance engineering · 2020Article
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 2 countries.
Funding
Abstract
purposeIn this study, we investigate a strategy to reduce the local specific absorption rate (SAR) while keeping
methodsLocally raising the resonance structure under the discontinuity (i.e., creating a bump) increases the distance between the accumulated charges and the tissue. As a result, it reduces the electric field and local SAR generated by these charges inside the tissue. The
resultsIntroducing a bump reduced the peak 10g-averaged SAR by 21, 26, 23% for the loop and snake antenna at 7T, and FD at 10.5T, respectively. In addition, eight-channel bumped FD array at 10.5T had a 27% lower peak 10g-averaged SAR in a realistic human body simulation (i.e., prostate imaging) compared to an eight-channel FD array.
conclusionIn this study, we investigated a simple design strategy based on adding bumps to a resonant element to reduce the local SAR while maintaining
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.