System and method for designing multi-channel RF pulses for...

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

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07466131

ABSTRACT:
A system and method are provided for designing RF pulses for multi-channel and/or multi-dimensional spatially-selective applications using a linear approximation. Embodiments of the system and method may use a generalized linear-class large tip angle approximation to design RF pulses for multi-channel and parallel transmission. Further, some of these approximations allow for the design of arbitrarily large flip angles, irregularly-shaped flip angle profiles, or arbitrary initial magnetization values. Embodiments of the system and method may also provide for the design of k-space trajectories which aid in maintaining assumptions of the various linear class approximations.

REFERENCES:
patent: 6534983 (2003-03-01), Boskamp et al.
patent: 6541971 (2003-04-01), Dannels
patent: 6906518 (2005-06-01), Leussler
patent: 7282915 (2007-10-01), Giaquinto et al.
patent: 7301341 (2007-11-01), Hargreaves et al.
patent: 2005/0007110 (2005-01-01), Zhou
patent: 2008/0012564 (2008-01-01), Lin
J. Pauly, D. Nishimura, and A. Macovski, “A k-space analysis of small-tip-angle excitation”, J. Magn. Reson., vol. 81, pp. 43-56, 1989.
J. Pauly, D. Nishimura, and A. Macovski, “A linear class of large-tip-angle selective excitation pulses”, J. Magn. Reson., vol. 82, pp. 571-587, 1989.
S. Saekho, C.-Y. Yip, D. C. Noll, F. E. Boada, and V. A. Stenger, “Fast-kz three-dimensional tailored radiofrequency pulse for reduced B1 inhomogeneity”, Magn. Reson. Med., vol. 55, pp. 719-724, 2006.
U. Katscher, P. Börnert, C. Leussler, and J. S. Van Den Brink, “Transmit SENSE”, Magn. Reson. Med., vol. 49, pp. 144-150, 2003.
Y. Zhu, “Parallel excitation with an array of transmit coils”, Magn. Reson. Med., vol. 51, pp. 775-784, 2004.
W. A. Grissom. C.-Y. Yip, Z. Zhang, V. A. Stenger, J. A. Fessler, and D. C. Noll, “Spatial domain method for the design of RF pulses in multicoil parallel excitation”, Magn. Reson. Med., vol. 56, pp. 620-629, 2006.
Z. Zhang, C.-Y. Yip, W. A. Grissom, F. E. Boada, D. C. Noll, and V. A. Stenger, “Reduction of B1 inhomogeneity using transmit SENSE slice-select pulses”, in Proc. 14th Ann. Meet. Intl. Soc. Mag. Reson. Med., p. 602, Seattle, Washington, May 2006.

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

System and method for designing multi-channel RF pulses for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for designing multi-channel RF pulses for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for designing multi-channel RF pulses for... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4031125

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