Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2005-06-14
2005-06-14
Shrivastav, Brij (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S307000
Reexamination Certificate
active
06906515
ABSTRACT:
When data of plural original images having different echo times are acquired to produce water/fat separated images by performing an processing operations in an MRI apparatus, a partial region of the original image data is specified and the specified region is subjected to the water/fat separation processing. Since noise components included in the specified region are fewer than those in the original image data, errors occurring due to noise components during unwrapping and other such processing operations can be reduced and image quality degradation be suppressed. Therefore, water/fat separated images having an excellent image quality can be produced. When echoes having different echo times are generated, rewind pulses are applied ahead of the readout gradient magnetic fields to equalize the polarities of the readout gradient magnetic fields. Consequently, influence of application of gradient magnetic fields on echo signals can be suppressed and the accuracy of water/fat separation can be improved.
REFERENCES:
patent: 5113865 (1992-05-01), Maeda et al.
patent: 5134372 (1992-07-01), Inoue
patent: 5627469 (1997-05-01), Hong et al.
patent: 6459922 (2002-10-01), Zhang
Takahashi Tetsuhiko
Takeuchi Hiroyuki
Yatsui Yumiko
Cooper & Dunham LLP
Hitachi Medical Corporation
Shrivastav Brij
LandOfFree
Magnetic resonance imaging device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic resonance imaging device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic resonance imaging device and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3515142