Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1997-11-14
2000-03-28
Arana, Louis
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324306, G01V 300
Patent
active
060436549
ABSTRACT:
Resonance is excited in a first slab (12) and manipulated to generate a plurality of data lines (16, 18) which span a fraction of k-space, e.g. a quarter of the phase encoding steps along a y-direction. Resonance is then excited in a second slab (22) displaced from the first slab and another series of data lines are generated. A resonance is excited and data lines generated in a plurality of additional slabs (32, 42). A resonance is excited in a slab (52) which partially overlaps the slab (12), e.g., has three of four slices in common. A series of data lines in the slab (52) are phase encoded with a different fraction of k-space. Two sets of differently phase encoded data sets have been generated in the example of FIGS. 2a and 2b. This process is cyclically repeated exciting in slabs which partially overlap proceedingly generated slabs, each time generating a different fraction of the data lines until a completed set of data is generated in an extended volume larger than one slab, slices 4-16 in the example of FIGS. 2a and 2b.
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Liu Kecheng
Loncar Mark J.
Xu Yansun
Arana Louis
Picker International Inc.
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