Motion detection by direct imaging during radiotherapy
AssigneeSiemens Medical Solutions USA, Inc.
InventorHimanshu P. Shukla
Life of this patent
Estimating the term…
Abstract
An apparatus, method, system, and means to detect motion of a subject by direct imaging on a treatment plane during a radiotherapy treatment, the method includes delivering a radiotherapy treatment beam to a volume of interest of the subject during a treatment time, acquiring image data during the treatment time associated with the delivery of the radiotherapy treatment beam by a direct imaging of a projection of the treatment volume of interest, providing a real-time display of the acquired image data, determining the occurrence of a motion in the volume of interest during the treatment time, determining the motion exceeds a pre-determined threshold, and outputting an indication the determined motion exceeds the pre-determined threshold during the treatment time.
Claims19
A method comprising:
- delivering a radiotherapy treatment beam to a volume of interest of a subject during a treatment time;
- acquiring image data during the treatment time associated with the delivery of the radiotherapy treatment beam by a direct imaging of a projection of the treatment volume of interest;
- providing a real-time display of the acquired image data;
- determining the occurrence of a motion in the volume of interest during the treatment time;
- determining the motion exceeds a pre-determined threshold;
- and
- outputting an indication the determined motion exceeds the pre-determined threshold during the treatment time.
An apparatus comprising:
- a memory storing processor-executable instructions;
- and
- a processor in communication with the memory and operative in conjunction with the stored instructions to:
- deliver a radiotherapy treatment beam to a volume of interest of a subject during a treatment time;
- acquire image data during the treatment time associated with the delivery of the radiotherapy treatment beam by a direct imaging of the treatment volume of interest;
- provide a real-time display of the acquired image data;
- determine the occurrence of a motion in the volume of interest during the treatment time;
- determine the motion exceeds a pre-determined threshold;
- and
- output an indication the determined motion exceeds the pre-determined threshold during the treatment time.
A system comprising:
- a radiation source to emit treatment beam of radiation during a radiotherapy treatment to a volume of interest of a subject during a treatment time;
- a radiation image detector to acquire image data based on at least a portion of the emitted radiation passing through the volume of interest of the subject during the treatment time and impinging on the radiation image detector;
- and
- a processor to:
- generate, in real-time, an image of the acquired image data;
- determine the occurrence of a motion in the volume of interest during the treatment time;
- determine the motion exceeds a pre-determined threshold;
- and
- output an indication the determined motion exceeds the pre-determined threshold during the treatment time.
Dependencies are inferred from the claim text.