Radio frequency magnetic field mapping of a 3 tesla birdcage coil: Experimental and theoretical dependence on sample properties

Magnetic Resonance in Medicine

Volumn 46, Issue 2, 2001, Pages 379-385

  Alecci, Marcello ^a,c   Collins, Christopher M ^a   Smith, Michael B ^b   Jezzard, Peter ^a  

^a UNIVERSITY OF OXFORD   (United Kingdom)

^b PENN STATE COLLEGE OF MEDICINE   (United States)

^c UNIVERSITY OF OXFORD   (United Kingdom)

Author keywords

Birdcage coil; High field MRI; Human brain; RF mapping

Indexed keywords

DIELECTRIC PROPERTIES; MAPPING; PHANTOMS; SALINE WATER;

BIRDCAGE COIL; HIGH FIELD MRI; HUMAN BRAIN; MAGNETIC FIELD MAPPING; PENETRATION EFFECTS; RADIO FREQUENCIES; RF MAPPINGS; STANDING WAVE EFFECTS;

BRAIN MAPPING;

OIL; SODIUM CHLORIDE; WATER;

ARTICLE; CALCULATION; DEVICE; DIELECTRIC CONSTANT; EXPERIMENT; HEAD; HUMAN; HUMAN EXPERIMENT; MAGNETIC FIELD; NORMAL HUMAN; NUCLEAR MAGNETIC RESONANCE IMAGING; PHANTOM; RADIOFREQUENCY; THEORY;

EID: 0034900050     PISSN: 07403194     EISSN: None     Source Type: Journal    
DOI: 10.1002/mrm.1201     Document Type: Article

References (36)

1. The intrinsic signal-to-noise-ratio in NMR imaging
2. 0 field variations
3. Comparison of linear and circular polarization for magnetic resonance imaging
4. Spectroscopy and imaging with a 4 Tesla whole-body MR system
5. Board statement: Advice on the 1998 ICNIRP guidelines for limiting exposure to time-varying electric, magnetic and electromagnetic fields (up to 300 GHz)
6. Spatial distribution of high-frequency electromagnetic energy in human head during MRI: Numerical results and measurements
7. Computation of electromagnetic fields for high-frequency magnetic resonance imaging applications
8. 1-field inhomogeneity of shielded RF coils loaded with the human head
9. 1 field distributions in a heterogeneous human head model within a birdcage coil
10. 1 homogeneity, SNR, and SAR vs frequency for the head in a idealized quadrature birdcage coil
11. Specific absorption rates and induced current densities for an anatomy based model of the human for exposure to time-varying magnetic fields of MRI
12. An efficient, highly homogeneous radiofrequency coil for whole body NMR imaging at 1.5 T
13. An analytical model for the design of RF resonators for MR body imaging
14. Measurements of the radiofrequency field in magnetic resonance coils
15. 1 field using the rotating-frame experiment
16. Magnetic field mapping
17. Mapping of the radiofrequency field
18. 1 field distribution with non ideal gradients in a high-resolution NMR spectrometer
19. 1-mapping
20. Standing-wave and RF penetration artefacts caused by elliptic geometry: An electrodynamic analysis of MRI
21. A simple method for investigating the effects of non-uniformitty of radiofrequency transmission and radiofrequency reception in MRI
22. A transmit-only/receive-only (TORO) RF system for high-field MRI/MRS applications
23. A low dielectric constant customised phantom design to measure RF coil nonuniformity
24. Electrical properties of tissues and cell suspensions
25. 2O as RF coils for high-field MR imaging and spectroscopy
26. 1-eigenfields of dielectric objects in high-field MRI
27. Use of endcap for improving the axial RF field homogeneity of a 3 tesla birdcage coil
28. 1 inhomogeneity compensation by active transmit power modulation
29. 1 mapping using multislice EPI
30. 1 field correction and its effect on MRI tissue segmentation
31. Nitroxide free radical clearance in the live rat monitored by radio-frequency CW EPR and PEDRI