Systems and methods for imaging large field-of-view objects
AssigneeMedtronic Navigation, Inc.
InventorsEugene A. Gregerson, Richard K. Grant, Norbert Johnson
Life of this patent
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Abstract
An imaging apparatus and related method comprising a detector located a distance from a source and positioned to receive a beam of radiation in a trajectory; a detector positioner that translates the detector to an alternate position in a direction that is substantially normal to the trajectory; and a beam positioner that alters the trajectory of the radiation beam to direct the beam onto the detector located at the alternate position.
Claims18
A method of operating an image apparatus, comprising:
- positioning a detector to image at least a portion of a volume configured to hold an object larger than a field-of-view of the detector;
- utilizing a detector positioner to translate the detector to multiple positions relative to the volume;
- positioning a beam such that a trajectory of the beam follows the path of the translating detector;
- and
- moving a rotor within a gantry such that the beam follows the path of the translating detector;
- wherein the detector and a beam source that emits the beam are movably mounted to the rotor.
A method of operating an image apparatus, comprising:
- positioning a detector to image at least a portion of a volume configured to hold an object larger than a field-of-view of the detector;
- utilizing a detector positioner to translate translating the detector to multiple positions relative to the volume;
- positioning a beam such that a trajectory of the beam follows the path of the translating detector;
- and
- driving a beam source with a motor to pivotally move the beam source mounted on a swiveling source mount;
- wherein the beam source is mounted to a source frame having at least two separated walls and a series of lateral members extending between the at least two separated walls and the swiveling source mount to pivotally hold the source relative to the source frame.
A method of operating an image apparatus, comprising:
- positioning a detector to image at least a portion of a volume configured to hold an object larger than a field-of-view of the detector;
- utilizing a detector positioner to translate translating the detector to multiple positions relative to the volume;
- positioning a beam such that a trajectory of the beam follows the path of the translating detector;
- and
- moving a detector carriage relative to a detector frame having at least two separated walls and a series of lateral members extending between the at least two separated walls;
- wherein the detector is mounted to the detector carriage to hold the detector and move the detector.
A method of operating an image apparatus, comprising:
- positioning a detector to image at least a portion of a volume configured to hold an object larger than a field-of-view of the detector, including:
- positioning the detector at a first position within a gantry to image a first portion of the object;
- positioning a beam such that the beam is detected by the detector at the first position;
- moving the detector to a second position within the gantry to image the first portion of the object;
- moving the beam such that the beam is with the detector to be detected by the detector at the second position;
- and
- moving a rotor within the gantry from a first angle to a second angle;
- wherein both of the detector and a beam source that emits the beam are moveably mounted to the rotor.
A method of operating an imaging apparatus, comprising:
- positioning an object within an O-shaped gantry;
- rotating a rotor carrying a source and a detector within an interior cavity of the gantry about the object;
- positioning the detector to image a portion of the object that is larger than a field-of-view of the detector;
- translating the detector to multiple positions relative to the object;
- and
- positioning a beam from the source such that a trajectory of the beam follows the path of the translating detector.
Dependencies are inferred from the claim text.