Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2009-07-08
2010-12-07
Shrivastav, Brij B (Department: 2831)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S307000
Reexamination Certificate
active
07847551
ABSTRACT:
In a method and system to generate an excitation in an examination subject to acquire magnetic resonance signals from a region of the examination subject, basic magnetic field is generated, an adiabatic half-passage (AHP) pulse is radiated to generate a transverse magnetization in the subject, and at least one first and one second adiabatic full-passage (AFP) pulse is radiated to generate a slice-selective rephasing of the transverse magnetization. The time interval between the first adiabatic half-passage pulse and the first adiabatic full-passage pulse is at least 37 ms, and the time interval between the first adiabatic full-passage pulse and the second adiabatic full-passage pulse is at least 75 ms.
REFERENCES:
patent: 4947119 (1990-08-01), Ugurbil et al.
patent: 6518757 (2003-02-01), Speier
patent: 7375520 (2008-05-01), Nezafat et al.
patent: 2005/0024052 (2005-02-01), Bendall et al.
patent: 2006/0244447 (2006-11-01), Michaeli et al.
patent: 2006/0253015 (2006-11-01), Nezafat et al.
patent: 2009/0230957 (2009-09-01), Park
“A Reduced Power Selective Adiabatic Spin-Echo Pulse Sequence,” Conolly et al, Magnetic Resonance in Medicine, vol. 18, No. 1 (1991) pp. 28-38.
“Improved Background Suppression for 3D-MRCP Using T2-Prep,” Busse et al, Proc. Int. Soc. Mag. Reson. Med., vol. 14 (2006) p. 392.
“Variable-Rate Selective Excitation,” Conolly et al, J. of Magnetic Resonance, vol. 78 (1998) pp. 440-458.
“Practical Implementation of Optimized Tissue-Specific Prescribed Signal Evolutions for Improved Turbo-Spin-Echo Imaging,” Mugler et al, Proc. Int. Soc. Mag. Reson. Med., vol. 11 (2003) p. 203.
“Multislice Imaging with Adiabatic Pulses Using Transverse Hadamard Encoding,” De Graaf et al, J. of Magnetic Resonance, Series B 113 (1996), pp. 97-101.
Schiff & Hardin LLP
Shrivastav Brij B
Siemens Aktiengesellschaft
LandOfFree
Method and magnetic resonance system to excite nuclear spins... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and magnetic resonance system to excite nuclear spins..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and magnetic resonance system to excite nuclear spins... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4170438