3D cones gradient waveform generation

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

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C324S307000

Reexamination Certificate

active

07548062

ABSTRACT:
A method of performing magnetic resonance imaging is provided. Sampling requirements are used to define a three dimensional cone trajectory differential equation. The equation is solved to obtain a starting point. A search is performed by performing a plurality of cycles, where each cycle comprises selecting a point on the cone trajectory, working backward from the starting point to reduce twist, providing a failure value if it is determined that when the twist reaches zero it is not possible to return to the origin at a final velocity of zero, and providing a success value if it is determined that when the twist reaches zero it is possible to return to the origin at a final velocity of zero. A plurality of cycles is performed, where each cycle comprises applying a magnetic resonance image excitation and scanning along the calculated cone trajectory and acquiring a readout.

REFERENCES:
patent: 5532595 (1996-07-01), Lampman et al.
patent: 6404194 (2002-06-01), Irarrazabal et al.
patent: 6937015 (2005-08-01), Heid
patent: 7372937 (2008-05-01), Wang et al.
patent: 7439739 (2008-10-01), Beatty
patent: 7444011 (2008-10-01), Pan et al.
patent: 2007/0010731 (2007-01-01), Mistretta
patent: 2007/0161884 (2007-07-01), Black et al.
patent: 2008/0037700 (2008-02-01), Grass et al.
Gurney PT, et al., “Design and Analysis of a Practical 3D Cones Trajectory”, Magn Reson Med, 55:575-582, 2006.
Gurney, Paul Thomas, “Magnetic Resonance Imaging Using a 3D Cones K-Space Trajectory”, A Dissertation Submitted to the Department of Electrical Engineering and the Committee on Graduate Studies of Stanford University, 163 pages, Jun. 2007.

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

3D cones gradient waveform generation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with 3D cones gradient waveform generation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 3D cones gradient waveform generation will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4103563

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