Magnetic resonance imaging apparatus and method

Electricity: measuring and testing – Particle precession resonance – Spectrometer components

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

324318, G01V 300

Patent

active

052968111

ABSTRACT:
The invention relates to a novel magnetic resonance imaging apparatus. The nuclei, protons or the paramagnetic electrons of an imaged object are cyclically polarized during a period of about one second with a permanent magnet which is then quickly shifted away from the imaged object in a permanent magnet carrier tube, so that the field of the permanent magnet would not have an interfering effect on the immediately following signal-collection for MRI-imaging. The permanent magnet can be manipulated or shifted back and forth in the tube either magnetically, pneumatically, hydraulically or mechanically. The apparatus also includes another permanent magnet or a resistive magnet coil couple, which is located in the tube near the opposite end of the tube, and which generates a homogeneous magnetic field within the imaged area. The apparatus includes a gradient coil system for generating a time-dependent magnetic field gradient necessary for imaging, as well as a coil system for producing an electromagnetic radio-frequency excitation signal to be linked with the nuclei or paramagnetic electrons of an imaged object as well as for registering the response of the nuclei or electrons to said signal. A control unit is used to control the above coils and to receive the information therefrom for producing an image or some other representation thereof.

REFERENCES:
patent: 4374360 (1983-02-01), Sepponen
patent: 4906931 (1990-03-01), Sepponen
patent: 5072732 (1991-12-01), Rapoport et al.
patent: 5129267 (1992-07-01), Nicholls
patent: 5154178 (1992-10-01), Shah

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

Magnetic resonance imaging apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic resonance imaging apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic resonance imaging apparatus and method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-439466

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