Radiation imaging apparatus, computed tomography apparatus, and radiation imaging method
AssigneeSamsung Electronics Co., Ltd.
InventorMin Kook Cho
Life of this patent
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Abstract
Disclosed are a radiation imaging apparatus, a computed tomography apparatus, and a radiation imaging method using the same. The radiation imaging apparatus includes a radiation emitter configured to emit radiation to an object while moving around the object, a radiation detector configured to detect radiation emitted from the radiation emitter and to change the detected radiation into an electric signal to thereby store the electric signal, and an irradiation controller to control the radiation emitter such that radiation is emitted to the object in at least one position or zone around the object and such that the radiation emitter stops emission of radiation to the object in a position or zone corresponding to the at least one position or zone.
Claims29
A radiation imaging apparatus comprising:
- a radiation emitter configured to emit radiation toward an object and to move around the object at a same time;
- a radiation detector configured to detect the radiation emitted from the radiation emitter, to change the detected radiation into a signal, and to store the signal;
- and
- an irradiation controller configured to control the radiation emitter to emit the radiation toward the object when the radiation emitter is located in a first position around the object and to stop emitting the radiation so that no radiation is emitted toward the object when the radiation emitter is located in a second position that is opposite to the first position.
A radiation imaging apparatus comprising:
- a radiation emitter configured to move along a path about an object in a movement and to emit radiation toward the object during the movement;
- and
- a radiation detector configured to receive the radiation emitted from the radiation emitter and to change the received radiation into a signal,
- wherein the path about the object is divided into at least one irradiation zone in which the radiation emitter emits the radiation, and at least one non-irradiation zone in which the radiation emitter does not emit the radiation, and the at least one non-irradiation zone is located opposite to the at least one irradiation zone.
A radiation imaging apparatus comprising:
- a radiation emitter, which is configured to move along a first path comprising a trajectory which surrounds an object, and to emit radiation toward the object;
- a filter disposed in a second path along which the radiation is emitted by the radiation emitter, to pass or to block the radiation emitted from the radiation emitter;
- and
- a radiation detector configured to receive the radiation emitted from the radiation emitter and to change the received radiation into a signal,
- wherein the filter passes the radiation emitted from the radiation emitter in at least one irradiation position or irradiation zone on the first path, and blocks the radiation emitted from the radiation emitter in at least one non-irradiation position or non-irradiation zone corresponding to the at least one irradiation position or irradiation zone.
A radiological image acquisition method using a computed tomography apparatus, the method comprising:
- performing a radiation imaging operation to acquire a plurality of radiological image data in a plurality of directions by controlling a radiation emitter so that radiation is emitted toward an object in a first direction around the object and so that no radiation is emitted toward the object in a second direction corresponding to the first direction;
- and
- performing an image data combination operation to combine the plurality of radiological image data in the plurality of directions, by calculating an image data for the second direction based on an image data acquired in the first direction.
Dependencies are inferred from the claim text.