ArticleMagnetic resonance in medicine2017
Toward imaging the body at 10.5 tesla.
Article in Magnetic resonance in medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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Who cites it
39 citing papers in PubMed.
- A Sub-Microsecond Switch Enabling SWIFTMagnetic resonance in medicine · 2026Article
- A 128-channel receive array with enhanced signal-to-noise ratio performance for 10.5T brain imaging.Magnetic resonance in medicine · 2025Article
- Parallel-transmission spatial spectral pulse design with local specific absorption rate control: Demonstration for robust uniform water-selective excitation in the human brain at 7 T.Magnetic resonance in medicine · 2025Article
- Quo Vadis MRI?Zeitschrift fur medizinische Physik · 2025Article
- 3D Metamaterials Facilitate Human Cardiac MRI at 21.0 Tesla: A Proof-of-Concept Study.Sensors (Basel, Switzerland) · 2025Article
- Changes in tissue sodium concentration and sodium relaxation times during the maturation of human knee cartilage: Ex vivoMagnetic resonance in medicine · 2024Article
- ImprovedMagnetic resonance in medicine · 2024Article
- Advanced Radio Frequency Applicators for Thermal Magnetic Resonance Theranostics of Brain Tumors.Cancers · 2023Article
- Germany's journey toward 14 Tesla human magnetic resonance.Magma (New York, N.Y.) · 2023Review
- Simulation-based evaluation of SAR and flip angle homogeneity for five transmit head arrays at 14 T.Magma (New York, N.Y.) · 2023Article
- Naturally occurring osteochondrosis latens lesions identified by quantitative and morphological 10.5 T MRI in pigs.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2023Article
- A Hybrid Volume-Surface Integral Equation Method for Rapid Electromagnetic Simulations in MRI.IEEE transactions on bio-medical engineering · 2023Article
- Improved TSE imaging at ultrahigh field using nonlocalized efficiency RF shimming and acquisition modes optimized for refocused echoes (AMORE).Magnetic resonance in medicine · 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
- Comparison of gross pathology inspection and 9.4 T magnetic resonance imaging in the evaluation of radiofrequency ablation lesions in the left ventricle of the swine heart.Frontiers in physiology · 2022Article
- Article
- 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
- 7 Tesla and Beyond: Advanced Methods and Clinical Applications in Magnetic Resonance Imaging.Investigative radiology · 2021Review
- A self-decoupled 32-channel receive array for human-brain MRI at 10.5 T.Magnetic resonance in medicine · 2021Article
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Authors and funding
11 authors.
Funding
Abstract
purposeTo explore the potential of performing body imaging at 10.5 Tesla (T) compared with 7.0T through evaluating the transmit/receive performance of similarly configured dipole antenna arrays.
methodsFractionated dipole antenna elements for 10.5T body imaging were designed and evaluated using numerical simulations. Transmit performance of antenna arrays inside the prostate, kidneys and heart were investigated and compared with those at 7.0T using both phase-only radiofrequency (RF) shimming and multi-spoke pulses. Signal-to-noise ratio (SNR) comparisons were also performed. A 10-channel antenna array was constructed to image the abdomen of a swine at 10.5T. Numerical methods were validated with phantom studies at both field strengths.
resultsSimilar power efficiencies were observed inside target organs with phase-only shimming, but RF nonuniformity was significantly higher at 10.5T. Spokes RF pulses allowed similar transmit performance with accompanying local specific absorption rate increases of 25-90% compared with 7.0T. Relative SNR gains inside the target anatomies were calculated to be >two-fold higher at 10.5T, and 2.2-fold SNR gain was measured in a phantom. Gradient echo and fast spin echo imaging demonstrated the feasibility of body imaging at 10.5T with the designed array.
conclusionWhile comparable power efficiencies can be achieved using dipole antenna arrays with static shimming at 10.5T; increasing RF nonuniformities underscore the need for efficient, robust, and safe parallel transmission methods. Magn Reson Med 77:434-443, 2017. © 2016 International Society for Magnetic Resonance in Medicine.
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