Method and apparatus for causing nuclear magnetic resonance of an object
AssigneeHitachi, Ltd.
InventorsRyuzaburo Takeda, Hideaki Koizumi, Toshiaki Aritomi
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Abstract
A method of and apparatus for generating nuclear magnetic resonance of an object. It is desirable that a nuclear magnetic resonance image be obtained in such a maner that a portion of the image in which the user is interested in is displayed in a greater scale. To this end, nuclear magnetic resonance signals from a specific region of the image are picke-up by an aliasing phenomenon, into a predetermined signal band which is different from the signal band of the above-mentioned specific region.
Claims8
A method of causing nuclear magnetic resonance of an object, comprising the steps of:
- causing nuclear magnetic resonance excitation of a predetermined region of the object defined by a predetermined frequency band so as to generate a nuclear magnetic resonance signal from the predetermined region of the object;
- and
- sampling the nuclear magnetic resonance signal so as to produce an aliased signal thereon in a frequency band in accordance with the Nyquist theorem and which differs from the predetermined frequency band to enable imaging of the predetermined region of the object in accordance with the aliased signal.
An apparatus for causing nuclear magnetic resonance of an object, comprising:
- means for producing nuclear magnetic resonance excitation of a predetermined region of the object defined by a predetermined frequency band so as to generate a nuclear magnetic resonance signal from the predetermined region of the object;
- and
- means for sampling the nuclear magnetic resonance signal so as to produce an aliased signal thereon in a frequency band in accordance with the Nyquist theorem and which differs from the predetermined frequency band to enable imaging of the predetermined region of the object in accordance with the aliased signal.
Dependencies are inferred from the claim text.