Leland Stanford Junior University

Varian Medical Systems, Inc.

The University of Sydney

Jun Lu

Paul Keall

Per Rugaard Poulsen

Ricky O'Brien

Elisabeth Weiss

Jeffrey F Williamson

Benjamin J Cooper

Walther Fledelius

Emily Brackbill

Geoffrey Hugo

Paul J Keall

Benjamin Cooper

Jeffrey F Willamson

A method of optimizing 4D cone beam computed tomography (4DCBCT) imaging is provided that includes using a scanner to generate projections of a target, where the projections are used to form a cone beam computed tomography (CBCT) scan of the target, where the CBCT includes a 3D image of the target, and using an appropriately programmed computer to control rotation speed of a gantry and projection acquisition of the CBCT in real-time according to a measured patient respiratory signal, where the real-time acquisition of the 4CBCT forms an optimized 4DCBCT image set.

Modulating gantry rotation speed and image acquisition in respiratory correlated (4D) cone beam CT images

A method of determining a model of a marker includes obtaining projection images, each of the projection images having an image of a marker that indicates a shape of the marker, determining binary images of the marker for respective ones of the projection images, and constructing a three-dimensional model of the marker using the binary images, the three-dimensional model comprising a set of voxels in a three-dimensional space that collectively indicates a three-dimensional shape of the marker, wherein the act of constructing the three-dimensional model is performed using a processing unit.

Systems and methods for segmentation of radiopaque structures in images

Growing community of inventors

Fayetteville, NY, United States of America

Jun Lu