Central brightening due to constructive interference with, without, and despite dielectric resonance - Concepedia

Concepedia

Publication | Open Access

Central brightening due to constructive interference with, without, and despite dielectric resonance

DOI Full Paper Access

241

Citations

16

References

2005

Year

Christopher M. Collins, Wanzhan Liu, W. Schreiber, Qing Yang, Michael B. Smith

Journal of Magnetic Resonance Imaging

Abstract

Constructive interference and wavelength effects are likely bigger contributors to central brightening in MR images of weakly conductive biological samples than is true dielectric resonance.

References

	Year	Citations
7T vs. 4T: RF power, homogeneity, and signal‐to‐noise comparison in head images J. Thomas Vaughan, Michael Garwood, Christopher M. Collins, Magnetic Resonance in Medicine	2001	883
Signal‐to‐noise ratio and absorbed power as functions of main magnetic field strength, and definition of “90°” RF pulse for the head in the birdcage coil Christopher M. Collins, Michael B. Smith Magnetic Resonance in Medicine Static Field Strength” Rf PulseEngineeringRadio FrequencyPet-mri	2001	257
Analysis of wave behavior in lossy dielectric samples at high field Qing Yang, Jinghua Wang, Xiaoliang Zhang, Magnetic Resonance in Medicine	2002	251
Ultimate intrinsic signal‐to‐noise ratio in MRI Ogan Ocali, Ergin Atalar Magnetic Resonance in Medicine KinesiologyEngineeringMedical ImagingHealth SciencesBiomedical Imaging	1998	218
Electromagnetic Resonances of Free Dielectric Spheres M. Gastine, L. Courtois, J. L. Dormann IEEE Transactions on Microwave Theory and Techniques EngineeringMagnetic ResonanceDielectric LossElectromagnetic MetamaterialsElectromagnetic Compatibility	1967	211
Standing-wave and RF penetration artifacts caused by elliptic geometry: an electrodynamic analysis of MRI John G. Sled, G. Bruce Pike IEEE Transactions on Medical Imaging EngineeringIntensity NonuniformityRf Penetration ArtifactsPet-mriAdvanced Imaging	1998	192
Dielectric resonances and B 1 field inhomogeneity in UHFMRI: computational analysis and experimental findings Tamer S. Ibrahim, Robert Lee, Amir Abduljalil, Magnetic Resonance Imaging B 1EngineeringRadio FrequencyPhysicsAntenna	2001	162
Different excitation and reception distributions with a single‐loop transmit‐receive surface coil near a head‐sized spherical phantom at 300 MHz Christopher M. Collins, Qing Yang, J. H. Wang, Magnetic Resonance in Medicine	2002	132
Radio frequency magnetic field mapping of a 3 Tesla birdcage coil: Experimental and theoretical dependence on sample properties Marcello Alecci, Christopher M. Collins, Michael B. Smith, Magnetic Resonance in Medicine	2001	129
<i>In vivo</i> magnetic resonance imaging and spectroscopy of humans with a 4 t whole‐body magnet H. Barfuss, H. Fischer, D. Hentschel, NMR in Biomedicine	1990	119

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