MRI apparatus and MRA imaging method
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United States of America Patent
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-
Nov 9, 2004
Grant Date -
Aug 28, 2003
app pub date -
Feb 21, 2003
filing date -
Feb 25, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
For the purpose of reducing degradation of image quality due to attenuation of signal intensity, or satisfactorily rendering blood flow even when fast blood flow and slow blood flow are simultaneously present in an imaged region, an imaged region A is divided into a plurality of adjacent slabs; RF pulses are transmitted with a flip angle profile whose flip angle .alpha. varies with respect to the thickness direction in each of the slabs and whose average flip angle differs for each of the slabs, to collect NMR signals; and blood flow imaging is conducted based on the NMR signals.
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