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…
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.
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…
Spectrum modeling systems, methods, and devices for particle therapy treatment planning
Granted: February 1, 2022
Patent Number:
11235171
Systems, devices, and methods for non-Gaussian energy distribution modeling for treatment planning algorithms used in particle radiation therapy.
Systems and methods for image cropping and anatomical structure segmentation in medical imaging
Granted: February 1, 2022
Patent Number:
11238580
One or more medical images of a patient are processed by a first neural network model to determine a region-of-interest (ROI) or a cut-off plane. Information from the first neural network model is used to crop the medical images, which serves as input to a second neural network model. The second neural network model processes the cropped medical images to determine contours of anatomical structures in the medical images of the patient. Each of the first and second neural network models…
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.
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…
Dual-monitor computer
Granted: January 25, 2022
Patent Number:
D941818
Systems, methods, and devices for multi-energy x-ray imaging
Granted: January 4, 2022
Patent Number:
11213266
A system can have an x-ray source that generates a series of individual x-ray pulses for multi-energy imaging. A first x-ray pulse can have a first energy level and a subsequent second x-ray pulse in the series can have a second energy level different from the first energy level. An x-ray imager can receive the x-rays from the x-ray source and can detect the received x-rays for image generation. A generator interface box (GIB) controls the x-ray source to provide the series of individual…
Systems, methods, and devices for radiation beam asymmetry measurements using electronic portal imaging devices
Granted: December 28, 2021
Patent Number:
11207546
Systems and methods for determining beam asymmetry in a radiation treatment system using electronic portal imaging devices (EPIDs) without implementation of elaborate and complex EPID calibration procedures. The beam asymmetry is determined based on radiation scattered from different points in the radiation beam and measured with the same region of interest ROI of the EPID.
Bookmarking capability for radiation treatment planning and management
Granted: December 7, 2021
Patent Number:
11195613
A control circuit operably couples to a memory having a plurality of different radiation treatment applications stored therein, a data store having patient data stored therein, and at least a first user interface comprising a first display and a first user input interface. The control circuit can be configured to present simultaneously, via the first display and for a given patient, at least two workspaces that each correspond to a different one of the radiation treatment applications…
Portal dosimetry systems, devices, and methods
Granted: December 7, 2021
Patent Number:
11191979
Systems, devices, and methods for dosimetric verification of radiation therapy treatments by selective evaluation of measurement points. Systems, methods, and computer program-products for providing dosimetric verification of radiation therapy treatments by evaluating measurement points using different evaluation criteria.
Apparatus and method using automatic generation of a base dose
Granted: December 7, 2021
Patent Number:
11191978
A control circuit forms a radiation therapy treatment plan by automatically generating a base dose that references dosing information from multiple sources and then using that base dose to optimize a radiation therapy treatment plan. That radiation therapy treatment plan is then used to administer radiation therapy to a patient. That automatically generated base dose can represent any or all of earlier radiation therapy treatments for the patient, a same fraction as a dose presently…
Systems and methods for planning and executing automated multi-axis motion in treatment
Granted: November 23, 2021
Patent Number:
11179129
An apparatus for creating a radiation treatment plan for execution by a radiation treatment machine, includes: a waypoint module configured to obtain imaging waypoint data representing imaging waypoints, the imaging waypoints at least partially defining one or more positions for obtaining images of a patient during a treatment session; a treatment trajectory module configured to obtain treatment data at least partially defining a beam-on direction; a treatment plan generator configured…
Iterative image reconstruction in image-guided radiation therapy
Granted: November 16, 2021
Patent Number:
11173324
Reconstruction of projection images of a CBCT scan is performed by generating simulated projection data, comparing the simulated projection data to the projection images of the CBCT scan, determining a residual volume based on the comparison, and using the residual volume to determine an accurate reconstructed volume. The reconstructed volume can be used to segment a tumor (and potentially one or more organs) and align the tumor to a planning volume (e.g., from a CT scan) to identify…
Methods of use of ultra-high dose rate radiation and therapeutic agent
Granted: November 16, 2021
Patent Number:
11173325
Methods for treating tumors by administering FLASH radiation and a therapeutic agent to a patient with cancer are disclosed. The methods provide the dual benefits of anti-tumor efficacy plus normal tissue protection when combining therapeutic agents with FLASH radiation to treat cancer patients. The methods described herein also allow for the classification of patients into groups for receiving optimized radiation treatment in combination with a therapeutic agent based on…
