AUTOMATIC ESTIMATING AND REDUCING SCATTERING IN COMPUTED TOMOGRAPHY SCANS
Granted: November 15, 2018
Application Number:
20180325485
In accordance with at least some embodiments of the present disclosure, a process to estimate scattered radiation contained in x-ray projections for computed tomography (CT) reconstruction is provided. The process may construct an object model based on a plurality of projection images generated by CT scanning of an object using an x-ray radiation source and a detector panel. The process may construct a virtual radiation source based on the x-ray radiation source, and a virtual detector…
BIOMARKERS FOR RADIATION TREATMENT
Granted: October 25, 2018
Application Number:
20180305769
The methods described herein allow for the classification of patients into groups for receiving optimized radiation treatment based on patient specific biomarker signature. The biomarker signature includes markers that have been shown to correlate with TGF-B expression and to be associated with tumor aggressiveness, radioresistance and poor prognosis. The markers play a key role in the epithelial-mesenchymal transition. The methods described herein provide the dual benefits of anti-tumor…
TREATMENT ENERGY DELIVERY SYSTEM
Granted: October 4, 2018
Application Number:
20180280734
A medical device includes: a base; a positioner coupled to the base; an accelerator coupled to the positioner, wherein the positioner is operable to rotate the accelerator relative to the base about at least two axes; and a power source coupled to the accelerator, the power source configured to provide microwave power for the accelerator, wherein a position of the power source relative to the base remains fixed during movement of the accelerator. A medical device includes: a base; a…
SYSTEMS AND METHODS FOR ENERGY MODULATED RADIATION THERAPY
Granted: September 27, 2018
Application Number:
20180277276
A medical apparatus includes: a beam deflector having an electromagnet configured to provide a first magnetic field for deflecting a particle beam; and a current control configured to adjust a current of the electromagnet in correspondence with an energy level associated with an accelerator. A treatment planning method includes: defining control points in a treatment plan; setting up energy switching in one or more of the control points; and performing treatment optimization on the…
PATIENT-MOUNTED OR PATIENT SUPPORT-MOUNTED CAMERA FOR POSITION MONITORING DURING MEDICAL PROCEDURES
Granted: September 27, 2018
Application Number:
20180276846
An apparatus for use in a medical procedure includes: a camera configured for attachment to a patient, wherein the camera is configured to detect one or more markers outside and away from the patient; and a processing unit configured to receive an input image from the camera, and to process the input image to monitor a position of a target associated with the patient during the medical procedure. An apparatus for use in a medical procedure includes: a camera configured for attachment to…
PIVOTING MULTILEAF COLLIMATOR AND METHOD FOR LARGE FIELD COVERAGE
Granted: September 13, 2018
Application Number:
20180256920
A radiation apparatus includes a source operable to generate a radiation beam, a multileaf collimator operable to shape of the radiation beam, and a pivoting mechanism configured to pivot the multileaf collimator about the source. The radiation apparatus may further include a rotating mechanism configured to rotate the multileaf collimator about an axis passing through the source and the multileaf collimator.
RADIATION TREATMENT PLANNING AND DELIVERY USING COLLISION FREE REGIONS
Granted: August 30, 2018
Application Number:
20180243584
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…
SYSTEMS AND METHODS FOR EVALUATING MOTION TRACKING FOR RADIATION THERAPY
Granted: August 23, 2018
Application Number:
20180236264
An apparatus includes: a processor configured for obtaining a first image that corresponds with a first multi-leaf collimator (MLC) configuration, wherein the first image is generated when the MLC is stationary, obtaining a second image that corresponds with a second MLC configuration, wherein the second image is generated when the MLC and/or another component of a radiation machine is being operated to track a motion, and performing an analysis based at least in part on the first image…
ITERATIVE IMAGE RECONSTRUCTION IN IMAGE-GUIDED RADIATION THERAPY
Granted: August 16, 2018
Application Number:
20180229056
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…
SYSTEM AND METHOD FOR PATIENT-SPECIFIC MOTION MANAGEMENT FOR TREATMENT
Granted: July 5, 2018
Application Number:
20180185671
An apparatus for assisting a selection of motion management technique for use with a treatment machine having an energy source, comprises: one or more input for obtaining motion trace of a target to be treated, and/or for obtaining motion data of a fiducial; and a motion management processor configured to determine motion management data based at least in part on at least a portion of the motion trace of the target and/or at least a portion of the motion data of the fiducial, wherein the…
INTERACTIVE DOSE MANIPULATION USING PRIORITIZED CONSTRAINTS
Granted: July 5, 2018
Application Number:
20180185669
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…
METHODS AND SYSTEMS FOR RADIOTHERAPY TREATMENT PLANNING
Granted: June 14, 2018
Application Number:
20180165423
Example methods for radiotherapy treatment planning are provided. One example method may include obtaining training data that includes multiple treatment plans associated with respective multiple past patients; and processing the training data to determine, from each of the multiple treatment plans, at least one of the following: first data associated with a particular past patient or a radiotherapy system for delivering radiotherapy treatment to the particular past patient, second data…
METHODS AND SYSTEMS FOR GENERATING DOSE ESTIMATION MODELS FOR RADIOTHERAPY TREATMENT PLANNING
Granted: June 14, 2018
Application Number:
20180161596
One example method for generating a dose estimation model for radiotherapy treatment planning may include obtaining training data that includes multiple treatment plans associated with respective multiple past patients. The method may also include processing the training data to determine, from each of the multiple treatment plans, first data that includes one or more features associated with a particular past patient, second data associated with treatment planning trade-off selected for…
DYNAMIC TARGET MASKER IN RADIATION TREATMENT OF MULTIPLE TARGETS
Granted: June 7, 2018
Application Number:
20180154179
A method for determining MLC leaf sequences for radiation treatment includes obtaining BEV projections of a first target volume and a second target volume along one or more treatment paths of a radiation treatment plan, analyzing the BEV projections to determine one or more contiguous ranges of spatial points where there exists an interstitial region between the first target volume and the second target volume in the direction of MLC leaf motion, and determining a first set of MLC leaf…
RADIATION TREATMENT PLANNING AND EXECUTION
Granted: May 3, 2018
Application Number:
20180117358
An apparatus for use in a treatment planning process or in a treatment process, includes: an input for obtaining a parameter representing a number of beam on-off transitions; and a treatment planner configured to optimize a treatment plan based on parameter representing the number of beam on-off transitions. An apparatus includes: an input configured to obtain a width of a gating window for a treatment plan; and a gating window adjustor configured to adjust the width of the gating window…
MEDICAL SYSTEMS WITH PATIENT SUPPORTS
Granted: March 29, 2018
Application Number:
20180085603
A patient supporting device includes: a base configured to translate in a room; a first member having a first end and a second end, wherein the first end of the first member is rotatably coupled to the base so that the first member is rotatable relative to the base about a first vertical axis; a second member having a first end and a second end, wherein the first end of the second member is rotatably coupled to the second end of the first member so that the second member is rotatable…
CREATING TREATMENT FIELD USING INITIAL FIELD AND PATIENT SPECIFIC GEOMETRY AND ACHIEVABLE DOSE
Granted: March 29, 2018
Application Number:
20180085596
Methods and systems are provided for developing radiation therapy treatment plans. A treatment template with radiation fields can be chosen for a patient based on a tumor location. Static radiation field positions can be adjusted for the patient, while arc radiation fields may remain the same. Static radiation field positions can be adjusted using dose gradient, historical patient data, and other techniques.
OPTIMIZATION OF IMAGE ACQUISITION PARAMETERS FOR REGISTRATION WITH REFERENCE IMAGE
Granted: March 29, 2018
Application Number:
20180085083
An apparatus includes input(s) for obtaining a first image and for obtaining a plurality of image parameters that includes at least a first image parameter and a second image parameter; a simulated image creation module configured for computing a plurality of simulated images based on the first image and the plurality of image parameters, the plurality of simulated images having at least a first simulated image computed based on the first image parameter, and a second simulated image…
SYSTEM AND METHOD FOR DETERMINING POSITION AND ORIENTATION OF DEPTH CAMERAS
Granted: March 1, 2018
Application Number:
20180061036
A system for determining positional information of a camera, includes: a plane determination module configured to determine a first plane and a second plane based on a depth image; a plane-association module configured to associate the first plane determined by the plane determination module with a first tool-plane, and to associate the second plane determined by the plane determination module with a second tool-plane, the first and second tool-planes having known positional relationship…
ELECTROMAGNETIC INTERFERENCE CONTAINMENT FOR ACCELERATOR SYSTEMS
Granted: March 1, 2018
Application Number:
20180061609
An apparatus for attachment to a component of a microwave device, includes: a cage; a shield within the cage, wherein the shield is in a form of a container, at least a majority of the shield spaced away from an interior wall of the cage; and a connector at the cage, wherein the connector is configured to connect to a cable connection, and wherein the connector is electrically connected to two terminals within the shield. An apparatus for coupling to an input connection of an electron…
