ADAPTIVE IMAGE FILTERING FOR VOLUME RECONSTRUCTION USING PARTIAL IMAGE DATA
Granted: January 30, 2020
Application Number:
20200034999
A method of generating an image synthesis process is disclosed, where the image synthesis process improves image quality of degraded volumetric images. In the method, a machine learning process is trained in a supervised learning framework as the image synthesis process. In the supervised learning process, a lower-quality partial-data reconstruction of a target volume is employed as an input object in the supervised learning process and a higher-quality full data reconstruction of the…
INTERACTIVE DOSE MANIPULATION USING PRIORITIZED CONSTRAINTS
Granted: January 9, 2020
Application Number:
20200009401
In a method of interactive manipulation of the dose distribution of a radiation treatment plan, after an initial candidate treatment plan has been obtained, a set of clinical goals are transferred into a set of constraints. Each constraint may be expressed in terms of a threshold value for a respective quality index of the dose distribution. The dose distribution can then be modified interactively by modifying the threshold values for the set of constraints. Re-optimization may be…
RADIATION THERAPY KNOWLEDGE EXCHANGE
Granted: December 19, 2019
Application Number:
20190385260
A method for implementing a radiation therapy knowledge exchange starts with searching a database of cases studies and selecting a case study. The selected case study is downloaded. The downloaded case study is applied to a medical case, wherein the downloaded case is applied using deformable image registration to deform reference images of the downloaded case to medical images of the medical case. After application of the downloaded case study, the medical case is uploaded to the…
ELECTROMAGNETIC INTERFERENCE CONTAINMENT FOR ACCELERATOR SYSTEMS
Granted: November 14, 2019
Application Number:
20190348248
An apparatus for coupling to an input connection of an electron gun, the input connection having a heater terminal and a cathode terminal, includes: a connector having a first end and a second end; wherein the first end of the connector is configured to attach to a cable; wherein the second end of the connector is configured to connect to the input connection of the electron gun; and wherein the connector comprises an opening configured to receive the heater terminal of the input…
IMAGING DEVICES
Granted: October 31, 2019
Application Number:
20190331808
An imaging device includes: a first scintillator layer; an array of detector elements, wherein the array of detector elements comprises a first detector element; a second scintillator layer, wherein the array of detector elements is located between the first scintillator layer and the second scintillator layer; and a first neutral density filter located between the first scintillator layer and the first detector element and/or a second neutral density filter located between the second…
IMAGING DEVICES
Granted: October 31, 2019
Application Number:
20190331806
An imaging device includes: a first scintillator layer; an array of detector elements, wherein the array of detector elements comprises a first detector element; a second scintillator layer configured to receive radiation after the radiation has passed through the first scintillator layer and the array of detector elements, wherein the array of detector elements is located between the first scintillator layer and the second scintillator layer; a first electrode located closer to the…
DEFORMABLE IMAGE REGISTRATION WITH AWARENESS OF COMPUTED TOMOGRAPHY (CT) RECONSTRUCTION AREA
Granted: September 26, 2019
Application Number:
20190295268
In accordance with at least some embodiments of the present disclosure, a process to improve computed tomography (CT) to cone beam computed tomography (CBCT) registration is disclosed. The process may include receiving a CT image generated by CT-scanning of an object, and receiving a CBCT image generated by CBCT-scanning of the object. The process may include generating an image mask based on Digital Imaging and Communications in Medicine (DICOM) information extracted from the CBCT…
COMPENSATING FOR LEAKAGE RADIATION IN MLC MODULATED TREATMENT
Granted: August 8, 2019
Application Number:
20190240509
A treatment planning method and system for determining a treatment plan used to irradiate a treatment volume using a radiation treatment system that includes a multi-leaf collimator (MLC), is disclosed. The treatment plan includes settings for leaf patterns of individual leaves of the MLC, each leaf pattern including a geometry of the individual leaves and forming an aperture for use in the treatment plan. Areas of radiation leakage are identified in each of the leaf patterns, the areas…
METHODS TO OPTIMIZE COVERAGE FOR MULTIPLE TARGETS SIMULTANEOUSLY FOR RADIATION TREATMENTS
Granted: August 8, 2019
Application Number:
20190240507
A cost function is constructed so as to guide an optimization process to achieve similar coverage for all targets simultaneously in a concurrent radiation treatment of multiple targets, so that a single scaling factor may be used in a plan normalization to achieve the desired coverage for all the targets. The cost function includes a component that favors a solution that attains similar target coverages for all targets, as well as a component that favors a solution that approaches the…
SYSTEMS AND METHODS FOR TRIGGERING ADAPTIVE PLANNING USING KNOWLEDGE BASED MODEL
Granted: August 1, 2019
Application Number:
20190232087
An apparatus includes: one or more input communicatively coupled to one or more medium storing current treatment plan data and a current image of a patient, the one or more input configured to obtain the current treatment plan data and the current image of the patient, wherein the current treatment plan data is for processing by a treatment machine; and a re-planning decision processor configured to determine a re-plan information based at least in part on the current treatment plan…
FEEDBACK SYSTEM AND METHOD FOR TREATMENT PLANNING
Granted: August 1, 2019
Application Number:
20190231430
An apparatus for use in a medical process, includes: a haptic device configured to provide mechanical feedback to a user; and a processing unit communicatively coupled to the haptic device, wherein the processing unit is configured to obtain tissue information, and provide a signal to operate the haptic device based on the tissue information for assisting the user in performing treatment planning. An apparatus for use in a medical process, includes: a feedback device configured to…
GENERATING TIME-EFFICIENT TREATMENT FIELD TRAJECTORIES FOR EXTERNAL-BEAM RADIATION TREATMENTS
Granted: July 11, 2019
Application Number:
20190209863
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…
VIRTUAL BEAM'S-EYE VIEW IMAGING IN RADIATION THERAPY FOR PATIENT SETUP
Granted: June 27, 2019
Application Number:
20190192881
A virtual beam's-eye view of a planning target volume is generated based on volumetric image data acquired immediately prior to radiation therapy by a radiation therapy system. The virtual beam's-eye view can then be displayed to confirm that, with the patient disposed in the current position, the planned beam-delivered treatment extends beyond the surface of the skin. In some embodiments, the virtual beam's-eye view can be displayed in conjunction with a beam's-eye view that is…
MOTION ENABLE MECHANISM WITH CAPACITIVE SENSOR
Granted: April 4, 2019
Application Number:
20190103869
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…
RADIOTHERAPY SYSTEM WITH LINEAR MOTOR FOR TRANSVERSE ACTUATION OF BASE AND ROTATION OF GANTRY
Granted: April 4, 2019
Application Number:
20190099623
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…
X-RAY IMAGING SYSTEM WITH A COMBINED FILTER AND COLLIMATOR POSITIONING MECHANISM
Granted: April 4, 2019
Application Number:
20190099622
A radiation therapy system includes an X-ray imaging system that is configured with a combined and simplified filter and collimator positioning mechanism. In addition, an X-ray imager of the RT system is only positioned at a few discrete locations within a plane that is a fixed distance from the imaging X-ray source when generating X-ray images. As a result, for each of these discrete imaging positions, the simplified filter and collimator positioning mechanism positions a specific…
RADIATION THERAPY SYSTEM WITH FOLLOW-THE-LIGHTS USER INTERFACE
Granted: April 4, 2019
Application Number:
20190099621
At each step of a workflow performed by an operator that involves a plurality of input mechanisms in a radiation therapy system, the operator is assisted in the process of selecting the next input mechanism in a way that greatly reduces the number of possible input mechanisms that can be chosen. A first subset of input mechanisms is made visually prominent via a first visual technique and a second subset of the input mechanisms is made visually prominent via a second visual technique.…
RADIATION TREATMENT PLANNING AND DELIVERY USING COLLISION FREE REGIONS
Granted: March 14, 2019
Application Number:
20190076672
Collision free regions are predetermined for one or more class solutions. Each class solution has defined limits for allowed field geometry variations. Collision free regions in planning can be defined as a set of allowed isocenter positions relative to a fixation device. The collision free regions may be visualized by a user to plan for field geometry and isocenter position tradeoffs. Collision free regions in delivery can be defined as a set of allowed couch support coordinates. The…
RADIOTHERAPY TREATMENT PLANNING USING ARTIFICIAL INTELLIGENCE (AI) ENGINES
Granted: March 7, 2019
Application Number:
20190074079
Example methods and systems for radiotherapy treatment planning are provided. One example method may comprise obtaining image data associated with a patient; and processing the image data to generate a treatment plan for the patient using an inferential chain that includes multiple AI engines that are trained separately to perform respective multiple treatment planning steps. A first treatment planning step may be performed using a first AI engine to generate first output data based on…
CONTROLLING AND SHAPING THE DOSE DISTRIBUTION OUTSIDE TREATMENT TARGETS IN EXTERNAL-BEAM RADIATION TREATMENTS
Granted: February 14, 2019
Application Number:
20190046815
Streamlined and partially automated methods of setting normal tissue objectives in radiation treatment planning are provided. These methods may be applied to multiple-target cases as well as single-target cases. The methods can impose one or more target-specific dose falloff constraints around each target, taking into account geometric characteristics of each target such as target volume and shape. In some embodiments, methods can also take into account a planner's preferences for target…
