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US 5,352,981 AGranted
High-resolution image reconstruction method for MRI
AssigneeKabushiki Kaisha Toshiba
InventorYoshio Machida
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AssigneeKabushiki Kaisha Toshiba
InventorYoshio Machida
Estimating the term…
In an image reconstruction method for magnetic resonance imaging, an object to be imaged is reconstructed based on Fourier imaging. First, there specified is a spatial resolution smaller than a further spatial resolution under a Nyquist condition derived from the Nyquist theorem. Then, a transformation matrix according to the specified spatial resolution is calculated and an inverse transformation matrix of the calculated transformation matrix is calculated. Then, discrete magnetic resonance signals from the object is collected in accordance with the Fourier imaging. And, discrete oblique Fourier transformation(DOFT) using the inverse transformation matrix is performed on the collected discrete magnetic resonance signals.
An image reconstruction method for magnetic resonance imaging, in which an object to be imaged is placed in a static magnetic field and gradient magnetic fields are applied to the object through gradient coils for obtaining a discrete magnetic resonance signal to reconstruct the image, the method comprising the steps of:
An image reconstruction method for magnetic resonance imaging, in which an object to be imaged is placed in a static magnetic field and gradient magnetic fields are applied to the object through gradient coils for obtaining a discrete magnetic resonance signal for reconstructing the image, the method comprising steps of:
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