Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2008-04-30
2009-10-13
Shrivastav, Brij B. (Department: 2831)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S307000
Reexamination Certificate
active
07602184
ABSTRACT:
Radio frequency (rf) pulses are applied to a sample to produce magnetic resonance (MR) echo signals from the sample at multiple different echo times. Magnetic field gradients are applied to the sample to select for acquisition components of each MR echo signal. The selected components correspond to groups of radial projections in k-space. Each group is associated with one of the echo times. Each group defines a different set of projection angles in the k-space, and the groups are interleaved to reduce streak artifacts in spectroscopic images associated with a resonance frequency. Images of the sample are generated based on acquired MR signals. In some implementations, an echo time of eight microseconds or less is included in the multiple different echo times.
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Fish & Richardson P.C.
Shrivastav Brij B.
The Regents of the University of California
Vargas Dixomara
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