No-view interfraction treatment target motion management using volumetric imaging
Granted: October 29, 2024
Patent Number:
12128252
A method of the present disclosure includes identifying, based on a reference image, a full motion range of a target, wherein the full motion range of the target defines a full internal target volume (ITV). The method further includes identifying a non-target object in a motion image or the reference image. The method further includes performing a volumetric alignment of the ITV and the non-target object. The method further includes modifying a non-target to target displacement vector…
Partial deformation maps for reconstructing motion-affected treatment dose
Granted: June 18, 2024
Patent Number:
12014519
A method including applying a first target-subject-specific model associated with a target subject to a treatment planning image to generate a transformed treatment planning image corresponding to a first position of a plurality of positions. The method also includes modifying one or more hyper-parameters of the first target-subject-specific model to generate a second target-subject-specific model corresponding to a second position of the plurality of positions. The method further…
Radiation based treatment beam position calibration and verification
Granted: June 4, 2024
Patent Number:
11998761
A method of calibration in a radiation delivery system. The method including acquiring, using a camera, an image of a radiation beam incident on a phantom, wherein the radiation beam being emitted by a radiation source of the radiation delivery system and the phantom comprising an X-ray luminescent material. The method further including determining a beam pointing offset based on the image. The method further including calibrating a position of the radiation source of the radiation…
3D imaging with simultaneous treatment and non-treatment imaging beams
Granted: May 28, 2024
Patent Number:
11992707
A radiation treatment session is initiated to deliver a therapeutic radiation beam from a therapeutic radiation source to a target. One or more X-ray radiation sources are caused to deliver an imaging radiation beam from the one or more X-ray radiation sources through the target to one or more X-ray detectors to acquire imaging data associated with the target during therapeutic radiation beam delivery. One or more volumetric images are constructed using the acquired imaging data.
Partial deformation maps for reconstructing motion-affected treatment dose using machine learning
Granted: March 5, 2024
Patent Number:
11922656
A method comprises inputting a treatment planning image of a target subject into a machine learning system. The method further comprises determining, by the machine learning system, a first target-subject-specific model of the treatment planning image. The method further comprises applying, by a processing device, the first target-subject-specific model to the treatment planning image to generate a transformed treatment planning image corresponding to a first position of a plurality of…
Online angle selection in rotational imaging and tracking systems
Granted: February 13, 2024
Patent Number:
11896850
A method of operating a radiation apparatus is described. The method includes selecting at least a first angle and a second angle from a set of angles for a first rotation of a gantry of a radiation apparatus. The method also includes generating, using an imaging device mounted to the gantry, a first tracking image of a target from the first angle during the first rotation of the gantry. The method further includes generating, using the imaging device, a second tracking image of the…
Online angle selection in rotational imaging and tracking systems
Granted: February 13, 2024
Patent Number:
11896850
A method of operating a radiation apparatus is described. The method includes selecting at least a first angle and a second angle from a set of angles for a first rotation of a gantry of a radiation apparatus. The method also includes generating, using an imaging device mounted to the gantry, a first tracking image of a target from the first angle during the first rotation of the gantry. The method further includes generating, using the imaging device, a second tracking image of the…
Multimodal radiation apparatus and methods
Granted: February 6, 2024
Patent Number:
11890125
A multimodal imaging apparatus, comprising a rotatable gantry system positioned at least partially around a patient support, a first source of radiation coupled to the rotatable gantry system, the first source of radiation configured for imaging radiation, a second source of radiation coupled to the rotatable gantry system, the second source of radiation configured for at least one of imaging radiation or therapeutic radiation, wherein the second source of radiation has an energy level…
Selecting imaging perspectives to optimize tracking volume detectability and model quality
Granted: January 23, 2024
Patent Number:
11878187
A method is described including online selecting of at least one of a plurality of optimal imaging times or a plurality of imaging angles and optimizing a parameter of an imaging system based on the online selecting.
Sparse background measurement and correction for improving imaging
Granted: December 26, 2023
Patent Number:
11854123
Disclosed herein is an imaging system including a first x-ray source configured to produce first x-ray photons in a first energy range suitable for imaging, project the first x-ray photons onto an area designated for imaging, a rotatable gantry configured to rotate the first x-ray source such that the first x-ray source traverses an angular path, and a data processor having an analytical portion. The analytical portion is configured to collect first data relating to the transmission of…
Multimodal radiation apparatus and methods
Granted: October 24, 2023
Patent Number:
11794039
An imaging apparatus comprises a rotatable gantry system positioned at least partially around a patient support; a first source of radiation coupled to the rotatable gantry system, the first source of radiation configured for imaging radiation; a second source of radiation coupled to the rotatable gantry system; and a first radiation detector coupled to the rotatable gantry system and laterally movable relative to a central beam of the first source of radiation to receive radiation from…
Field replaceable, disposable, and thermally optimized X-ray target with integral beam current monitoring
Granted: October 10, 2023
Patent Number:
11785699
A linear accelerator target apparatus includes a target material to produce radiation upon being struck by electrons accelerated by a linear accelerator and a target holder assembly to which the target material is attached. The target holder assembly includes a cooling channel disposed around a perimeter of the target material. The target holder assembly is configured to be detachably coupled to a housing of the linear accelerator. The target apparatus further includes a protective…
Scalable slim radiotherapy treatment delivery system topology
Granted: June 20, 2023
Patent Number:
11679281
A radiation delivery system that includes a gantry to extend along one or more axes. The gantry is to provide a continuous rotation. The radiation delivery system includes a linear accelerator (LINAC) coupled to the gantry. The LINAC is to generate a treatment beam. The radiation delivery system includes a rotary joint coupled to the gantry. The rotary joint provides a physical connection from the LINAC to an external system that is positioned off the gantry. The physical connection is…
Radiation based treatment beam position calibration and verification
Granted: May 16, 2023
Patent Number:
11648423
A phantom, calibration system and calibration method are described. The phantom having a phantom body and an X-ray luminescent material, wherein at least a portion of the X-ray luminescent material is on a surface of the phantom.
Radiotherapy apparatus and methods for treatment and imaging using hybrid MeV-keV, multi-energy data acquisition for enhanced imaging
Granted: May 16, 2023
Patent Number:
11647975
A radio therapy system includes a first x-ray source. The first x-ray source is configured to produce first x-ray photons in a first energy range suitable for imaging and project the first x-ray photons onto an area designated for imaging. The system includes a second x-ray source configured to produce second x-ray photons in a second energy range higher energy than the first energy range, produce third x-ray photons in a third energy range higher energy than the first energy range,…
3D imaging with simultaneous treatment and non-treatment imaging beams
Granted: May 2, 2023
Patent Number:
11638838
A radiation treatment session is initiated to deliver a therapeutic radiation beam from a therapeutic radiation source to a target. One or more X-ray radiation sources are caused to deliver an imaging radiation beam from the one or more X-ray radiation sources through the target to one or more X-ray detectors to acquire imaging data associated with the target during therapeutic radiation beam delivery. One or more volumetric images are constructed using the acquired imaging data.
Multi-pass computed tomography scans for improved workflow and performance
Granted: May 2, 2023
Patent Number:
11638568
An x-ray imaging apparatus and associated methods are provided to execute multi-pass imaging scans for improved quality and workflow. An imaging scan can be segmented into multiple passes that are faster than the full imaging scan. Data received by an initial scan pass can be utilized early in the workflow and of sufficient quality for treatment setup, including while the another scan pass is executed to generate data needed for higher quality images, which may be needed for treatment…
Anchored kernel scatter estimate
Granted: March 14, 2023
Patent Number:
11605186
A radiological imaging apparatus is provided that includes a radiation source for emitting radiation, a radiation detector positioned to receive radiation emitted by the radiation source and generate radiation data, wherein the radiation data comprises a primary component and a secondary component, and a data processing system. The data processing system is configured to apply image transforms to the primary component using generating functions, build a scatter model basis using the…
Partial deformation maps for reconstructing motion-affected treatment dose
Granted: March 7, 2023
Patent Number:
11596807
A method comprises identifying a treatment planning image of a target subject, the treatment planning image comprising information associated with an arrangement of structures within the target subject. The method further comprises generating, based on the information, a set of reference data associated with the target subject, the reference data indicating a plurality of positions of the target subject. The method further comprises generating target-subject-specific models based on the…
Radiation treatment planning using four-dimensional imaging data
Granted: January 10, 2023
Patent Number:
11547870
A method and apparatus for treatment planning using four dimensional imaging data.
