Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2009-01-30
2011-10-18
Shrivastav, Brij (Department: 2858)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S307000
Reexamination Certificate
active
08040133
ABSTRACT:
In a magnetic resonance tomography method and apparatus (MRT), as employed in medicine for examination of patients, for dynamic distortion correction in EPI measurements, image acquisitions are acquired that are adjacent in a periodic/alternating manner differ with regard to phase information, phase coding direction or with regard to the echo time, and based on this difference a field map and/or a displacement map is calculated with which at least one distorted result image is corrected.
REFERENCES:
patent: 5560360 (1996-10-01), Filler et al.
patent: 6068595 (2000-05-01), Miyazaki et al.
patent: 6275038 (2001-08-01), Harvey
patent: 6320380 (2001-11-01), Wu et al.
patent: 6548796 (2003-04-01), Silvermintz et al.
patent: 6700374 (2004-03-01), Wu et al.
patent: 6728568 (2004-04-01), Yatsui et al.
patent: 6980001 (2005-12-01), Paley et al.
patent: 7019523 (2006-03-01), Ikezaki
patent: 7298144 (2007-11-01), Reeder et al.
patent: 7469159 (2008-12-01), DeYoe et al.
patent: 2010/0213938 (2010-08-01), Jeong et al.
patent: 2010/0260403 (2010-10-01), Takizawa et al.
patent: 103 19 037 (2004-11-01), None
“A Technique for Accurate Magnetic Resonance Imaging in the Presence of Field Inhomogeneities,” Chang et al., IEEE Trans. on Medical Imaging, vol. 11, No. 3 (1992) pp. 319-329.
“Correction for EPI Distortions Using Multi-Echo Gradient-Echo Imaging,” Chen et al., Magnetic Resonance in Medicine, vol. 41 (1999) pp. 1205-1213.
“Correction for Geometric Distortion in Echo Planar Images from B0Field Variations,” Jazzard et al., Magnetic Resonance in Medicine, vol. 34 (1995) pp. 65-73.
“An Evaluation of the Use of Magnetic Field Maps to Undistort Echo-Planar Images,” Cusack et al., NeuroImage, vol. 18, (2003) pp. 127-142.
“EPI Distortion Correction From a Simultaneously Acquired Distortion Map Using TRAIL,” Priest et al., J. Mag. Res. Imaging, vol. 23 (2006) pp. 597-603.
“Correction for Geometric Distortion and N/2 Ghosting in EPI by Phase Labeling for Additional Coordinate Encoding (PLACE),” Xiang et al., Magnetic Resonance in Medicine, vol. 57 (2007, pp. 731-741.
Pfeuffer Josef
Vogler Markus
Schiff & Hardin LLP
Shrivastav Brij
Siemens Aktiengesellschaft
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