Hybrid trajectory and beam angle optimization for external beam radiation therapy
Granted: September 13, 2022
Patent Number:
11439842
A method of determining treatment geometries for a radiotherapy treatment includes providing a patient model having one or more regions of interest (ROIs); defining a delivery coordinate space (DCS); for each beam's eye view (BEV) plane of each vertex in the DCS, and for each ROI, evaluating a dose of the ROI using transport solutions; evaluating a BEV scores of each pixel of the BEV plane using the doses of the one or more ROIs; determining one or more BEV regions in the BEV plane based…
Imaging based calibration systems, devices, and methods
Granted: May 10, 2022
Patent Number:
11324970
Systems, devices, and methods for imaging-based calibration of radiation treatment couch position compensations.
Display screen of an electronic device with a graphical user interface
Granted: May 10, 2022
Patent Number:
D951274
Systems and methods for interactive control of window/level parameters of multi-image displays
Granted: April 26, 2022
Patent Number:
11315529
A technology enables interactive control of simultaneously displayed multiple images with high dynamic ranges, which software automation processes are programmed to reduce the complexity in managing and viewing the post window/level adjustment of the multiple images. An image control engine provides several synchronous functional capabilities, which comprises an input module, a blending factor synchronization module, a window/level synchronization module, a display module, and an image…
System for non-invasive heart treatment
Granted: April 19, 2022
Patent Number:
11305132
The invention provides a non-invasive method for treatment of arrhythmia. In a first aspect, a method for treatment of atrial fibrillation in a heart of a patient comprises directing radiation from outside the patient toward one or more target treatment regions of the heart so as to inhibit the atrial fibrillation. The radiation may induce isolation of a pulmonary vein.
Cone-beam computed tomography with continuous kV beam acquisition
Granted: April 12, 2022
Patent Number:
11298088
A cone-beam computed tomography (CBCT) method uses a continuous beam and an area detector to carry out fast acquisition of projection data. The acquired projection data are then reconstructed to generate tomographic images. In acquisition of the projection data, a radiation source continuously irradiates a subject with a cone beam of radiation from a plurality of angles and an area detector continuously reads out data. A CBCT system including a source operable to produce a cone beam of…
Radiation treatment planning for delivering high dose rates to spots in a target
Granted: April 5, 2022
Patent Number:
11291859
Information that describes a target inside a patient to be treated with radiation is accessed from computer system memory. An arrangement of spots inside the target is determined. Each the spots corresponds to a location inside the target where a respective beam of radiation is to be directed during radiation treatment of the patient. A dose rate for each of the beams is determined. The dose rate for each beam is a dose delivered in less than one second to a spot corresponding to that…
Generating time-efficient treatment field trajectories for external-beam radiation treatments
Granted: March 29, 2022
Patent Number:
11285339
In a radiation treatment plan that includes a plurality of treatment fields of multiple treatment modalities, such as IMRT modality and dynamic treatment path modality (e.g., VMAT and conformal arc therapy), an optimized spatial point sequence may be determined that optimizes the total treatment time, which includes both the beam-on time (i.e., during the delivery of radiation dose) and the beam-off time (i.e., during transitions between consecutive treatment fields). The result is a…
Magnetic field concentrating and or guiding devices and methods
Granted: March 22, 2022
Patent Number:
11280850
A magnetic field concentrating or guiding device can include one or more coils, and one or more foil, tape and/or bulk superconductor structures disposed in one or more predetermined positions with relation to the coils. The one or more superconductor structures can form one or more magnetic field carrying regions. During operation, current passing through the one or more coils can generate one or more magnetic fields that are compressed or guided in the magnetic field carrying regions.
Image contouring using spiking neural networks
Granted: March 22, 2022
Patent Number:
11282221
Disclosed herein are methods and system for training artificial intelligence models configured to execute image segmentation techniques. The methods and system describe a server that receives a first image including a set of pixels depicting multiple objects. The server also receives a second image having a second set of pixels depicting the same set of objects. The server then analyzes the pixels from the first and second images. When a difference between at least one visual attribute…
Motion enable mechanism with capacitive sensor
Granted: March 22, 2022
Patent Number:
11278739
A motion-enable device includes a mechanical switch and a capacitive sensor with a sensing region that is located adjacent to the mechanical switch. The mechanical switch enables a first signal when closed or actuated that indicates that the mechanical switch is in an active state. The capacitive sensor enables a second signal when a conductive object is disposed in the sensing region, where the second signal indicates that the capacitive sensor is in an active state. Enablement of…
Using isodose surfaces for optimizing dose distribution in radiation treatment planning
Granted: March 22, 2022
Patent Number:
11278738
Cost functions and cost function gradients for use in radiation treatment planning can be computed based on an approximation of an “isodose” surface. Where a clinical goal is expressed by reference to a threshold isodose surface, a corresponding cost function component can be defined directly by reference to that isodose surface, and a corresponding contribution to the cost function gradient can be approximated by identifying voxels that are intersected by the threshold isodose…
Systems and methods for automatic treatment planning and optimization
Granted: March 22, 2022
Patent Number:
11278737
Systems and methods for the automatic generation and optimization of radiation therapy treatment plans, and systems and methods for the automatic generation and optimization of an adapted plan in an adaptive radiation therapy workflow.
Systems, devices, and methods for quality assurance of radiation therapy
Granted: March 8, 2022
Patent Number:
11266858
Systems, devices, and methods for quality assurance for verification of radiation dose delivery in arc-based radiation therapy devices using a 3D gamma evaluation method.
Radiotherapy system with linear motor for transverse actuation of base and rotation of gantry
Granted: March 8, 2022
Patent Number:
11266856
A radiation therapy system includes a treatment couch positioning assembly that is directly coupled to a fixed structure supporting the linear accelerator of the radiation therapy system. The radiation therapy system can be installed in a radiation therapy facility without the floor of the facility being excavated and a sub-floor structure, such as a base frame, being installed. To laterally position a patient relative to the linear accelerator, the treatment couch positioning assembly…
Microwave coagulation applicator and system
Granted: February 22, 2022
Patent Number:
11253316
A microwave applicator for insertion into living body tissue for use in microwave coagulation and ablation treatments includes a microwave transmission line extending between an attachment end of the applicator and an antenna toward an insertion end of the applicator with an outer conductive sleeve forming an enclosed cooling fluid space around the transmission line. Circulation of cooling fluid is guided in the cooling fluid space by a guide sleeve. A fluid circulation system provides a…
System and method for detecting and correcting defective image output from radiation-damaged video cameras
Granted: February 15, 2022
Patent Number:
11250593
An apparatus for use with a medical system, the medical system comprising a medical device configured to treat and/or image a patient, includes: an input configured to receive an image from a camera, the camera configured to view at least a part of the patient and/or at least a part of the medical system; a processing unit configured to replace a damaged-pixel value in the image corresponding with a damaged pixel in the camera that is damaged due to radiation resulted from an operation…
Radiation treatment planning and delivery for moving targets in the heart
Granted: February 8, 2022
Patent Number:
11241590
Methods and systems are disclosed for radiating a moving object. The method may comprise acquiring a plurality of indicators of the phase of a physiological cycle of a patient and a plurality of images of the patient that include a target. Each image may be taken at a different phase of the physiological cycle and may be registered to the phase at which the image was taken. The method may also include identifying the target in each of the plurality of images, calculating a dose of…
Embolic microspheres
Granted: February 1, 2022
Patent Number:
11235084
In some aspects, the disclosure pertains to injectable particles that contain at least one pH-altering agent that is configured to be released from the injectable particles in vivo, upon embolization of an intratumoral artery of a tumor with the injectable particles. In certain instances, the pH-altering agent may be a basic agent having a pH value of 7.5, a buffering agent having a pKa value of 7.6 or more, or both. Other aspects of the disclosure pertain to preloaded containers…
Radiation treatment planning real-time user interface
Granted: February 1, 2022
Patent Number:
11235172
A control circuit carries out various actions to facilitate speedy user interaction involving adjustments to radiation dosing that corresponds to a particular mixed radiation treatment plan. These actions can include remixing particular multi-criteria optimization radiation treatment plans.
