Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2007-08-21
2007-08-21
Arana, Louis M. (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S307000
Reexamination Certificate
active
11254260
ABSTRACT:
The present invention provides an apparatus and method of phase correction whereby changes in phase characteristics are measured during data acquisition and, accordingly, phase correction parameters that are applied during image reconstruction are updated in real-time. This adaptive and dynamic phase correction reduces variability in image fidelity during the course of long MR scans, such as EPI scans, and provides consistent artifact reduction during the course of an MR scan.
REFERENCES:
patent: 5151656 (1992-09-01), Maier et al.
patent: 5672969 (1997-09-01), Zhou et al.
patent: 6259250 (2001-07-01), Mock
patent: 6466015 (2002-10-01), Schaeffter et al.
patent: 6700374 (2004-03-01), Wu et al.
patent: 6803763 (2004-10-01), Peters et al.
patent: 7098662 (2006-08-01), Hinks et al.
patent: 7102352 (2006-09-01), Hinks et al.
C.B Ahn et al., “A New Phase Correction Method in NMR Imaging Based on Autocorrelation and Histogram Analysis,” IEEE Transaction on Medical Imaging , Mar. 1987, pp. 32-36, vol. MI-6, No. 1.
S.M. Grieve et al., Elimination of Nyquist Ghosting Caused by Read-Out to Phase-Encode Gradient Cross-Terms in EPI, Magnetic Resonance in Medicine, 2002, pp. 337-343, No. 47, Wiley-Liss, Inc.
K.P. Pruessmann et al., “SENSE: Sensitivity Encoding for Fast MRI,” Magnetic Resonance in Medicine, 1999, pp. 952-962, No. 42, Wiley-Liss, Inc.
D.K. Sodickson et al., Simultaneous Acquisition of Spatial Harmonics (SMASH): Fast Imaging with Radiofrequency Coil Arrays, MRM, 1997, pp. 591-603, No. 38, Williams & Wilkins.
S. Thesen et al., “Absolute Correction of BoFluctuations in Echo-Planar Imaging,” Proc. Intl. Soc. Mag. Reson. Med., 2003, pp. 1025, No. 11.
Frigo Frederick J.
Hinks R. Scott
Mock Bryan J.
Zhao Xiaoli
Arana Louis M.
General Electric Company
Ziolkowski Patent Solutions Group, SC
LandOfFree
Method and apparatus of echo planar imaging with real-time... 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 apparatus of echo planar imaging with real-time..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus of echo planar imaging with real-time... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3836017