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US 12,721,584 B2Granted
Systems and methods for imaging wide film radiographs
AssigneeMedtronic Navigation, Inc.
InventorsMichael D. Ketcha, Patrick A. Helm, Kyo C. Jin
Life of this patent
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Abstract
A method of operating an image apparatus and the imaging apparatus. The method operable to acquire image data of an object with a detector in a selected orientation. The method further operable to acquire image data at an effective detector larger than a physical detector. The image apparatus configured carry out the method.
Claims20
A method of operating an image apparatus, comprising:
- repositioning a detector to a plurality of positions to acquire image data of an object;
- maintaining a surface of the detector parallel to a first axis and facing along a first line as the detector is repositioned to each position of the plurality of positions, wherein the first line is normal to the first axis, and wherein the first axis is a lateral axis extending across an imaging volume perpendicular to a central axis of a gantry;
- and
- repositioning a beam source such that a center of a beam produced by the beam source is normal to the surface of the detector at each of the plurality of positions,
- producing a large effective detector by repositioning the detector and repositioning the beam source by acquiring image data at least at a first position and a second position of the plurality of positions.
2 more elements
A method of operating an image apparatus, comprising:
- positioning a detector at a first position within a gantry to image a first portion of an object, wherein a surface of the detector faces a first direction in the first position and is parallel to a first axis, wherein the first axis is a lateral axis extending across an imaging volume perpendicular to a central axis of the gantry;
- positioning a beam source within the gantry such that the beam source is opposed to the detector at the first position, wherein a center of a beam produced by the beam source is normal to the surface of the detector when the beam is detected by the detector at the first position;
- moving the detector to a second position within the gantry to image a second portion of the object, wherein the surface of the detector faces the first direction and remains parallel to the first axis in the second position;
- and
- moving the beam source such that the center of the beam produced by the beam source is normal to the detector when the beam produced by the beam source is detected by the detector at the second position.
2 more elements
An imaging apparatus comprising:
- a source that emits a beam;
- a detector located a distance from the source and configured to detect the beam;
- an imaging volume between the source and the detector, a radiation beam from the source configured to pass through a portion of the imaging volume to be detected by the detector;
- a detector positioner configured to reposition the detector;
- a beam positioner configured to reposition the source;
- a gantry housing the source, the detector, the detector positioner, and the beam positioner;
- and
- a processor configured to execute instructions to:
- direct the detector positioner to position the detector at a first position within the gantry to image a first portion of an object within the imaging volume, wherein a surface of the detector is in a first plane in the first position and the first plane is parallel to a first axis, wherein the first axis is a lateral axis extending across the imaging volume perpendicular to a central axis of the gantry;
- direct the beam positioner to position the source such that the beam produced by the source is detected by the detector at the first position;
- direct the detector positioner to move the detector to a second position within the gantry to image a second portion of the object within the imaging volume, wherein the surface of the detector is substantially in the first plane and remains parallel to the first axis in the second position;
- and
- direct the beam positioner to move the source such that beam is detected by the detector at the second position.
10 more elements
Dependencies are inferred from the claim text.