MRI using variable ratio of pre-pulses to flip pulses
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United States of America Patent
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Nov 19, 2002
Grant Date -
Jun 21, 2001
app pub date -
Dec 19, 2000
filing date -
Dec 20, 1999
priority date (Note) -
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Abstract
A magnetic resonance imaging apparatus applies flip-pulses and gradient magnetic field pulses to generate a plurality of MR signals and to add spatial encoding information to the MR signals, applies pre-pulses to obtain a predetermined effect, and generates an image on the basis of the MR signals. The MR signals include first MR signals located in a first region in k-space and second MR signals located in a second region in k-space. The ratio of the number of the pre-pulses to the number of the flip-pulses applied in a unit time for obtaining the first MR signals is made different from the ratio for obtaining the second MR signals.
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