Radiotherapy apparatus and method for delivering radiation to a subject
AssigneeElekta Limited
InventorPer Carlsson
Life of this patent
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Abstract
Disclosed herein is a radiotherapy apparatus comprising a radiation source coupled to a rotatable gantry, a movable subject support surface and a controller. The controller is configured to obtain a first and a second anatomical location of the patient, determine a vector using the first and second anatomical location, apply radiation from the radiation source to the first and second anatomical location and move the subject support surface to the gantry based on the angular deviation.
Claims27
A radiotherapy apparatus comprising:
- a radiation source coupled to a rotatable gantry;
- a movable subject support surface;
- and
- a controller configured to:
- obtain a first anatomical location of a patient and a second anatomical location of the patient;
- determine a vector using the first anatomical location and the second anatomical location, a directional component of the vector being an angular deviation from a rotational axis of the rotatable gantry;
- apply radiation from the radiation source to the first anatomical location at a first time;
- move the movable subject support surface relative to the rotatable gantry based on the angular deviation;
- apply radiation from the radiation source to the second anatomical location at a second time;
- and
- apply radiation according to a helical treatment, wherein the radiation applied according to the helical treatment is applied during the movement of the movable subject support surface and during rotation of the rotatable gantry.
A method for controlling a radiotherapy apparatus comprising a radiation source coupled to a rotatable gantry and movable subject support surface, the method comprising:
- obtaining a first anatomical location of a patient and a second anatomical location of the patient;
- determining a vector using the first anatomical location of the patient and the second anatomical location of the patient, a directional component of the vector being an angular deviation from a rotational axis of the rotatable gantry;
- and
- outputting control instructions configured to control the radiotherapy apparatus to:
- apply radiation from the radiation source to the first anatomical location at a first time;
- move the movable subject support surface relative to the rotatable gantry based on the angular deviation;
- and
- apply radiation from the radiation source to the second anatomical location at a time, wherein outputting control instructions configured to control the radiotherapy apparatus to move the movable subject support surface comprises:
- outputting control instructions configured to control the radiotherapy apparatus to apply radiation to a target region between the first anatomical location and the second anatomical location as the movable subject support surface is moved.
A non-transitory computer readable medium comprising computer-executable instructions which, when performed by one or more processors of a computer device, cause the one or more processors to:
- control a radiotherapy apparatus comprising a radiation source coupled to a rotatable gantry and a movable subject support surface, wherein to control the radiotherapy apparatus, the computer-executable instructions cause the one or more processors to:
- obtain a first anatomical location of a patient and a second anatomical location of the patient;
- determine a vector using the first anatomical location of the patient and the second anatomical location of the patient, a directional component of the vector being an angular deviation from a rotational axis of the rotatable gantry;
- and
- output control instructions configured to control the radiotherapy apparatus to:
- apply radiation from the radiation source to the first anatomical location at a first time;
- move the movable subject support surface relative to the rotatable gantry based on the angular deviation;
- apply radiation from the radiation source to the second anatomical location at a second time;
- and
- apply radiation according to a helical treatment, wherein the radiation applied according to the helical treatment is applied during the movement of the movable subject support surface and during rotation of the rotatable gantry.
Dependencies are inferred from the claim text.