Methods and systems for cone-beam computed tomography
AssigneeGeneral Electric Company
InventorsThomas Mc Carthy, Yves Lucien Trousset
Life of this patent
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Abstract
Various methods and systems are provided for collision avoidance in cone-beam computed tomography (CT) systems. In one embodiment, a method for an imaging apparatus comprises calculating a likelihood of a collision between the imaging apparatus and a subject and/or its support based on a model of the subject, performing a scan of the subject responsive to the likelihood below a threshold, and not performing the scan otherwise. In this way, collisions between the patient and the imaging apparatus can be avoided.
Claims20
A method for an imaging apparatus, comprising:
- calculating a likelihood of a collision between the imaging apparatus and one or more of a subject and a subject support based on a model of the subject;
- performing a scan of the subject responsive to the likelihood below a threshold;
- and
- not performing the scan otherwise.
An imaging system, comprising:
- a gantry;
- a source coupled to the gantry and configured to generate energy;
- a detector coupled to the gantry opposite the source and configured to detect the energy;
- a patient support positioned between the source and the detector;
- and
- a processor communicatively coupled to the gantry, the source, the detector, and the patient support, the processor configured with instructions in non-transitory memory that, when executed, cause the processor to:
- calculate a position of the patient support such that a region of interest of a subject resting on the patient support coincides with a field of view between the source and the detector;
- calculate a likelihood of a collision of the source and the detector with the subject and the patient support if the patient support is positioned at the calculated position;
- and
- responsive to the likelihood of the collision being below a threshold, adjust the patient support to the calculated position.
A method, comprising:
- receiving a request to image an anatomy of a patient;
- automatically positioning the patient on a support at a position determined based on one or more of a patient envelope and the anatomy of the patient;
- and
- evaluating a feasibility of performing a rotational acquisition of a scan using an imaging system on the patient by computing a likelihood of collision between the imaging system and one or more of the support and the patient.
Dependencies are inferred from the claim text.