Systems and methods for quasi-simultaneous multi-planar x-ray imaging
First Claim
1. An imaging apparatus, comprising:
- a gantry having a central opening for positioning around an object to be imaged;
a source of radiation that is rotatable around the interior of the gantry and which is adapted to project radiation onto said object from a plurality of different projection angles; and
a detector system adapted to detect the radiation at each projection angle to acquire object images from multiple projection planes in a quasi-simultaneous manner.
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Abstract
Systems and methods for obtaining two-dimensional images of an object, such as a patient, in multiple projection planes. In one aspect, the invention advantageously permits quasi-simultaneous image acquisition from multiple projection planes using a single radiation source.
An imaging apparatus comprises a gantry having a central opening for positioning an object to be imaged, a source of radiation that is rotatable around the interior of the gantry ring and which is adapted to project radiation onto said object from a plurality of different projection angles; and a detector system adapted to detect the radiation at each projection angle to acquire object images from multiple projection planes in a quasi-simultaneous manner. The gantry can be a substantially “O-shaped” ring, with the source rotatable 360 degrees around the interior of the ring. The source can be an x-ray source, and the imaging apparatus can be used for medical x-ray imaging. The detector array can be a two-dimensional detector, preferably a digital detector.
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Citations
38 Claims
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1. An imaging apparatus, comprising:
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a gantry having a central opening for positioning around an object to be imaged;
a source of radiation that is rotatable around the interior of the gantry and which is adapted to project radiation onto said object from a plurality of different projection angles; and
a detector system adapted to detect the radiation at each projection angle to acquire object images from multiple projection planes in a quasi-simultaneous manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of obtaining quasi-simultaneous multi-planar object images using radiation, comprising:
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positioning an object within a central opening of a gantry;
rotating a radiation source within the gantry to a plurality of projection angles;
at each projection angle, projecting radiation from the source onto the object;
detecting radiation from the object at each projection angle to acquire object images for multiple projection planes in a quasi-simultaneous manner. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. An imaging apparatus, comprising:
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gantry means for positioning around an object to be imaged;
radiation means rotatable around an interior of the gantry means for projecting radiation onto said object at a plurality of projection angles;
detector means for detecting radiation from the object at each projection angle to acquire object images for multiple projection planes in a quasisi-multaneous manner. - View Dependent Claims (35, 36, 37, 38)
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Specification