Varian Medical Systems, Inc.

Varian Medical Systems International Ag

Cellnet Innovations, Inc.

Imris, Inc.

Gellnet Innovations, Inc.

John Van Heteren

Josh Star-Lack

Janne Iimari Nord

Jarkko Yriana Peltola

Daniel Morf

Adam Shar Wang

Liangjia Zhu

Blake Gaderlund

Hassan Mostafavi

Petr Jordan

Gary Fredric Virshup

Arthur Charles Kwun

Adam James Wang

Andrew G Jeung

Pascal Paysan

Stefan Georg Scheib

Labros Petropoulos

John Saunders

George A Zdasiuk

Michelle Richmond

Graham R Faulknor

Dusan Baic

Alyssa J Garver

Gordon A Klimenko

Meir Dahan

Brendan Guyot

Jeff Winter

Daniel R Bilsky

Alexander R Brown

Jon Carver

Victoria Hornblower

Hongxiang Yi

An example method of radiation therapy in a radiation therapy system that includes a gantry with a treatment-delivering X-ray source and an imaging X-ray source mounted thereon is described. The method includes rotating the gantry in a first direction at a first rotational velocity about an open bore and concurrently rotating an annular support structure at a second rotational velocity about the open bore, wherein the second rotational velocity is less than the first rotational velocity. While continuing to rotate the gantry in the first direction about the open bore from a first position to a treatment position, the method also includes generating multiple images of a target volume disposed in the bore using the imaging X-ray source. Upon rotating the gantry to the treatment position, the method includes initiating delivery of a treatment beam to the target volume with the treatment-delivering X-ray source.

Single-pass imaging and radiation treatment delivery via an extended rotation gantry

A method of radiation therapy comprises, while a gantry of a radiation therapy system rotates continuously in a first direction through a treatment arc from a first treatment delivery position to a second treatment delivery position, causing an imaging X-ray source mounted on the gantry to direct X-rays through a target volume and receiving a set of X-ray projection images from an X-ray imager mounted on the gantry; determining a current location of the target volume based on the set of X-ray projection images; and while the gantry to continues to rotate to the second treatment delivery position, initiating delivery of a treatment beam of a treatment-delivering X-ray source mounted on the gantry to the target volume, and continuing to cause the gantry to rotate in the first direction from the second treatment delivery position to a third treatment delivery position.

Radiation therapy system using a digital tomosynthesis process for near real-time localization

A radiation therapy system is configured to enable imaging and treatment of a target volume during a single patient breath hold. The radiation system includes a rotating gantry on which are mounted a treatment-delivering X-ray source and multiple imaging X-ray sources and corresponding X-ray imaging devices. The multiple imaging X-ray sources and X-ray imaging devices enable the acquisition of volumetric image data for the target volume over a relatively short rotational arc, for example 30 degrees or less. Therefore, intra-fraction motion can be detected in near-real time, for example within about one second or less. The radiation therapy system can perform image guided radiation therapy (IGRT) that monitors intra-fraction motion using X-ray imaging. Detected anatomical variations can then either be compensated for, via patient repositioning and/or treatment modification, or the current treatment can be aborted.

Radiation therapy system with multiple X-ray imagers for near real-time localization

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 target volume is employed as an expected output. The full data reconstruction is generated based on a first set of projection images of the three-dimensional volume and the partial-data reconstruction is generated based on a second set of projection images of the three-dimensional volume, where the second set of projection images includes projection images that have less image information and/or are of a lower image quality than the first set of projection images.

Adaptive image filtering for volume reconstruction using partial image data

A radiation therapy system delivers radiation treatment over a 360-degree arc and performs a prepended imaging process, in a single pass, via an extended rotation gantry. While rotating the gantry in one direction about a bore of the radiation system, the radiation system generates multiple images of a target volume disposed in the bore using an imaging X-ray source mounted on the gantry. Then, while continuing to rotate the gantry in the same direction, the radiation system delivers a treatment beam to the target volume using a treatment-delivering X-ray source mounted on the gantry, where the treatment beam is delivered from some or all of a 360-degree arc about the bore. Thus, the prepended imaging process and the delivery of radiation are performed in a single pass of the gantry about a target volume, eliminating the need for a return stroke of the gantry for completion.

A marker system includes: a first marker; and a second marker; wherein the first marker and the second marker are configured to emit light from one or more light sources coupled to the first marker and the second marker; and wherein the first marker and the second marker are configured to emit the light for detection by a camera. A method performed using a marker system includes: generating light using one or more light sources; emitting the light at a plurality of markers that are coupled to the light sources; and detecting the light emitted from the plurality of markers using a camera; wherein the act of detecting comprises using one or more filters to reduce ambient light to a level that corresponds with a noise level of the camera while allowing light emitted from the markers to be imaged by the camera.

Marker system with light source

A patient support system includes a patient support having a surface for supporting a patient and a longitudinal axis, and a positioner coupled to the patient support for positioning the patient support, wherein the positioner is configured to move the patient support along a path that has an arc, circular, or zig-zag shape, and wherein the path lies within a plane that forms an angle with the surface of the patient support.

Radiation system with rotating patient support

Apparatus for radiation therapy combines a patient table, an MRI and a radiation treatment apparatus mounted in a common treatment room with the MR magnet movable from a position outside a radiation shielded door to an imaging position. An RF-shielded door is movable between a position, separating part of the treatment apparatus from the magnet and an open position allowing access of the patient to the treatment apparatus. In one configuration there is a row of treatment rooms and the magnet is mounted to move along a passageway outside the row of radiation shielded doors of the rooms.

Integration of MRI into radiation therapy treatment

Methods and apparatus, including computer program products, implementing and using techniques for intelligent two-way telemetry. A telemetry system in accordance with the invention includes one or more telemetry units that can receive and send data. The system further includes one or more controllers that includes intelligence for processing data from the one or more telemetry units and for autonomously communicating with the one or more telemetry units. The controllers are separately located from a data processing center of the telemetry system such that the controllers alleviate data congestion going to and coming from the data processing center.

Intelligent two-way telemetry

Method and system to collect measurements from multiple metering devices. The collector devices store and forward measurement information through a network connection to a remote processing center to generate an output based on the measurement information.

Meter to internet pathway

Methods and apparatus implementing and using techniques for data collection, including using a plurality of telemetry devices to generate and transmit a series of measurements and transmit the measurements. Each of a plurality of collection devices are used to receive measurements from one or more telemetry devices, transmit data based on the measurements received from a telemetry device in a first set of telemetry devices to a monitoring station and, upon request from the monitoring station, transmit data based on measurements received from a telemetry device in a second set of telemetry devices to the monitoring station. A monitoring station is used to designate a collection device as a preferred collection device for a telemetry device and designate at least one other collection device as an alternate collection device for the telemetry device.

Data collection and metering system

Growing community of inventors

Foster City, CA, United States of America

John Van Heteren