Magnetic resonance imaging apparatus and control method of the same
AssigneeFUJIFILM Healthcare Corporation
InventorsKosuke Ito, Atsushi Kuratani
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AssigneeFUJIFILM Healthcare Corporation
InventorsKosuke Ito, Atsushi Kuratani
Estimating the term…
Provided is an MRI using a GRE-based pulse sequence in which flow artifacts are suppressed and a flow artifact-free image is obtained regardless a velocity or a direction of blood flow. A pair of gradient magnetic field pulses (velocity encoding gradient magnetic field pulses) is applied before echo measurement of a GRE-based pulse sequence, and imaging is performed a plurality of times by varying intensities of the velocity encoding gradient magnetic field pulses. Measurement data obtained by imaging a plurality of times is subjected to a Fourier transformation in an axial direction of the intensity of the velocity encoding gradient magnetic field pulse, that is, in a velocity encoding direction, to perform image reconstruction. As a result, an image can be separated for each velocity of a stationary tissue and a non-stationary component included in the tissue, and an image of spins with a velocity of zero, that is, a flow artifact-free image of the stationary tissue, can be obtained.
A magnetic resonance imaging apparatus comprising:
A control method of a magnetic resonance imaging apparatus including a high-frequency magnetic field generation unit configured to generate a high-frequency magnetic field to be applied to an examination target, a gradient magnetic field generation unit configured to generate gradient magnetic fields in three axial directions in a space where the examination target is placed, a measurement unit configured to collect a nuclear magnetic resonance signal generated from the examination target, and an image generation unit configured to generate an image from measurement data consisting of the nuclear magnetic resonance signal collected by the measurement unit, the control method comprising:
Dependencies are inferred from the claim text.