Fringe field MRI

Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

324318, G01R 3320

Patent

active

050235540

ABSTRACT:
Extremely non-homogenous high but extremely intense high fringe magnetic fields are purposefully (and even advantageously) utilized for magnetic resonance imaging (including localization and spectroscopy) so as to better obtain advantages typically associated with ultra high field MRI. Static magnetic field gradients inherently included in such fringe fields are actively utilized in conjunction with suitable NMR RF nutation pulses so as to achieve volume-selective NMR data acquisition. Special arrangements of static electromagnets, magnetic gradient coils and/or RF coils may be used in conjunction with novel RF/gradient pulse sequences so as to elicit and acquire suitable MRI data.

REFERENCES:
patent: 4486709 (1984-01-01), Bendall
patent: 4534358 (1985-08-01), Young
patent: 4591789 (1986-05-01), Glover et al.
patent: 4595899 (1986-06-01), Smith
patent: 4617936 (1986-10-01), Malko
patent: 4634980 (1987-01-01), Misic et al.
patent: 4638252 (1987-01-01), Bradshaw
patent: 4652826 (1987-03-01), Yamamoto et al.
patent: 4680551 (1987-07-01), O'Donnell et al.
patent: 4684890 (1987-08-01), Briguet et al.
patent: 4684893 (1987-08-01), Kojima et al.
patent: 4692705 (1987-09-01), Hayes
patent: 4694249 (1987-09-01), Post et al.
patent: 4703270 (1987-10-01), Hall et al.
patent: 4707664 (1987-11-01), Fehn et al.
patent: 4714885 (1987-12-01), Paltiel et al.
patent: 4721914 (1988-01-01), Fukushima et al.
patent: 4727327 (1988-02-01), Toyoshima et al.
patent: 4733190 (1988-03-01), Dembinski
patent: 4740751 (1988-04-01), Misic et al.
patent: 4742303 (1988-05-01), Bendall
patent: 4777956 (1988-10-01), Macovski
patent: 4797617 (1989-01-01), Misic et al.
patent: 4814709 (1989-03-01), Takeda
patent: 4876508 (1989-10-01), Taylor
Cooper et al., "Remote (Inside-Out) NMR I Remote Production of a Region of Homogeneous Magnetic Field", Journal of Magnetic Resonance, vol. 42, pp. 400-405 (1980).
Lowell J. Burnett et al., "Remote (Inside-Out) NMR II Sensitivity of NMR Detection for External Samples", Journal of Magnetic Resonance, vol. 41, pp. 406-410 (1980).
Japser A. Jackson et al., "Remote (Inside-Out) NMR III Detection of Nuclear Magnetic Resonance in a Remotely Produced Region of Homogeneous Magnetic Field", Journal of Magnetic Resonance, vol. 41, pp. 411-421 (1980).
Hutchinson, "NMR Imaging; Image Recovery Under Magnetic Fields with Large Nonuniformities":, J. Phys. E; Sci. Instrum., vol. 15, p. 1093 (1982).
Cho et al., "Chemical Shift Artifact Correction Scheme Using Echo-Time Encoding Technique", Magn. Reson., Med., vol. 2, p. 253 (1985).
Kim et al., "Chemical Shift Imaging with Large Magnetic Inhomgeneity", Mag. Reson., Med., vol. 4, p. 452 (1987).
Lai, "Reconstructing NMR Images from Projections Under Inhomogeneous Magnetic Field and Non-Linear Field Gradients", Phys. Med. Biol., vol. 28, No. 8, p. 925, (1983).
Sekihara et al., "Image Restoration from Non-Uniform Magnetic Field Influence for Direct Fourier NMR Imaging", Phys. Med. Biol., vol. 29, p. 15 (1984).
O'Donnell, W. Edelstein, "NMR Imaging in the Presence of Magnetic Field Inhomogeneities and Gradient Field Nonlinearities", Med. Phys., vol. 12, p. 20 (1985).
Feig et al., "Magnetic Resonance Imaging with Non-Uniform Fields", Phys. Med. Biol., vol. 31, p. 109 (1987).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Fringe field MRI does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fringe field MRI, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fringe field MRI will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-784998

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.