58 patents
Page 3 of 3
Utility
Computed Tomography System and Method for Image Improvement Using Prior Image
3 Jun 20
A computed tomography (CT) system and method is provided.
Zhicong Yu, Daniel Gagnon
Filed: 24 Nov 19
Utility
Helical Cone-beam Computed Tomography Imaging with an Off-centered Detector
3 Jun 20
An x-ray imaging apparatus and associated methods are provided to process projection data from an offset detector during a helical scan, including view completion.
Zhicong Yu, Daniel Gagnon
Filed: 24 Nov 19
Utility
Apparatus and Methods for Scalable Field of View Imaging Using a Multi-source System
3 Jun 20
Multimodal imaging apparatus and methods include a rotatable gantry system with multiple sources of radiation comprising different energy levels (for example, kV and MV).
Daniel Gagnon, Zhicong Yu, Jacob Shea
Filed: 24 Nov 19
Utility
Multi-pass Computed Tomography Scans for Improved Workflow and Performance
3 Jun 20
An x-ray imaging apparatus and associated methods are provided to execute multi-pass imaging scans for improved quality and workflow.
Daniel Gagnon, Chuanyong Bai, Zhicong Yu
Filed: 24 Nov 19
Utility
Asymmetric Scatter Fitting for Optimal Panel Readout In Cone-beam Computed Tomography
3 Jun 20
An x-ray imaging apparatus and associated methods are provided to receive measured projection data in a primary region and measured scatter data in asymmetrical shadow regions and determine an estimated scatter in the primary region based on the measured scatter data in the shadow region(s).
Chuanyong Bai, Amit Jain, Daniel Gagnon, Zhicong Yu, Jacob Shea
Filed: 24 Nov 19
Utility
Optimized Scanning Methods and Tomography System Using Region of Interest Data
3 Jun 20
A method of scanning parameter optimization, which method may be useful with image-guided radiation therapy (IGRT), allows for controlling exposure of a beam from an x-ray source and/or controlling the detection mechanism for an x-ray detector of imaging radiation of a radiation-delivery device based on one or more parameters of a region of interest of a patient.
Zhicong Yu, Amit Jain, Daniel Gagnon, Jacob Shea
Filed: 24 Nov 19
Utility
Multimodal Radiation Apparatus and Methods
3 Jun 20
Multimodal imaging apparatus and methods include a rotatable gantry system with multiple sources of radiation comprising different energy levels (for example, kV and MV).
Jacob Shea, Brandon Frederick, Eric Schnarr, Daniel Gagnon
Filed: 24 Nov 19
Utility
Method and Apparatus for Scatter Estimation In Cone-beam Computed Tomography
3 Jun 20
An x-ray imaging apparatus and associated methods are provided to receive measured projection data in a primary region and measured scatter data in a shadow region and determine an estimated scatter in the primary region during a current rotation based on the measured scatter data in the shadow region from a neighboring rotation.
Zhicong Yu, Chuanyong Bai, Amit Jain, Daniel Gagnon
Filed: 24 Nov 19
Utility
Method and Apparatus for Improving Scatter Estimation and Correction In Imaging
3 Jun 20
An x-ray imaging apparatus and associated methods are provided to receive measured projection data from a wide aperture scan of a wide axial region and a narrow aperture scan of a narrow axial region within the wide axial region and determine an estimated scatter in the wide axial region using an optimized scatter estimation technique.
Daniel Gagnon, Chuanyong Bai, Zhicong Yu, Amit Jain, Calvin R. Maurer, JR.
Filed: 24 Nov 19
Utility
Method and Apparatus for Image Reconstruction and Correction Using Inter-fractional Information
3 Jun 20
An imaging apparatus and associated methods are provided to efficiently estimate scatter during multi-fraction treatments for improved quality and workflow.
Zhicong Yu, Chuanyong Bai, Amit Jain, Daniel Gagnon, Jacob Shea, Wenli Wang, Calvin R. Maurer, JR.
Filed: 24 Nov 19
Utility
Integrated Helical Fan-beam Computed Tomography In Image-guided Radiation Treatment Device
3 Jun 20
A radiotherapy delivery device is provided.
Jacob Shea, Daniel Gagnon, Eric Schnarr, Edward Henry Chao, Petr Jordan, Calvin R. Maurer, JR.
Filed: 24 Nov 19
Utility
Offline Angle Selection In Rotational Imaging and Tracking Systems
22 Apr 20
A processing device determines a plurality of angles from which tracking images can be generated by an imaging device.
Petr Jordan, Andriy Myronenko, Calvin Maurer, Eric Schnarr, Rob O'Connell
Filed: 18 Dec 19
Utility
Image-guided Radiation Treatment with Imaging Data Using Imaging Radiation at Different Energy Levels
25 Mar 20
A method of image-guided radiation treatment is described.
Petr Jordan, Andriy Myronenko, Jay B. West, Calvin R. Maurer, Prashant Chopra, Anuj K. Purwar, Christopher A. Janko
Filed: 10 Nov 19
Utility
Gantry Image Guided Radiotherapy System and Related Treatment Delivery Methods
4 Mar 20
A radiation treatment apparatus, comprising a gantry structure comprising a beam member extending between first and second ends of the gantry structure.
Calvin R. Maurer, JR., Euan S. Thomson
Filed: 5 Nov 19
Utility
Online Angle Selection In Rotational Imaging and Tracking Systems
12 Feb 20
A radiation therapy apparatus determines a set of angles that have a tracking quality metric value that satisfies a tracking quality metric criterion.
Petr Jordan, Andriy Myronenko, Calvin Maurer, Eric Schnarr, Rob O'Connell
Filed: 6 Oct 19
Utility
Fast Sliding Window Delivery Via a High-speed Multileaf Collimator
5 Feb 20
A system for delivering radiation dose, includes a gantry to move about a target to be irradiated and a radiation source mounted to the gantry and directed inward toward the target, The system further includes a collimator mounted to the gantry and in front of the radiation source, the collimator to shape a radiation beam directed at the target, wherein the collimator is to modulate a sub-beam intensity of the radiation beam across a plurality of sub-beams that subdivide a fluence field into a two-dimensional (2D) grid, and wherein a plurality of independent two-dimensional (2D) sub-beam intensity patterns are delivered from a plurality of gantry angles while the gantry moves continuously.
Eric Schnarr, Robert O'Connell, Richard Nash, Matthew Orton, Jacob Shea
Filed: 5 Aug 18
Utility
Binary Multileaf Collimator Delivery with Per-leaf Field Width
5 Feb 20
A radiation treatment delivery system, includes a linear accelerator (LINAC) and a multileaf collimator (MLC), coupled with the distal end of the LINAC, wherein the MLC has two banks of leaves, organized into a plurality of opposing leaf pairs.
Eric Schnarr, Hari Gopalakrishnan, Jari Toivanen, Matthew Orton
Filed: 5 Aug 18
Utility
Compensating for Target Rotation with a Collimation System
25 Dec 19
A method includes detecting a potential setup error in a radiation treatment delivery session of a radiation treatment delivery system, wherein the setup error corresponds to a change in a current position of a treatment target relative to a prior position of the treatment target, and wherein the change includes a rotation relative to the prior position of the treatment target.
Andrea Cox, Eric Schnarr
Filed: 19 Jun 18