Xun Jia

US Patent:

20130131428, May 23, 2013

Filed:

Apr 28, 2011

Appl. No.:

13/695015

Inventors:

Steve B. Jiang - San Diego CA, US
Chunhua Men - Chesterfield MO, US
Xun Jia - San Diego CA, US

Assignee:

THE REGENTS OF THE UNIVERSITY OF CALIFORNIA - Oakland CA

International Classification:

A61N 5/10

US Classification:

600 1

Abstract:

Systems, techniques, and processes are disclosed for implementing aperture-based optimization techniques. In one aspect, a method performed by an aperture-based radiation treatment system includes implementing a volumetric modulated arc therapy (VMAT) treatment plan by generating apertures at beam angles. Beam intensities of the generated apertures are determined, which can be used to control generation of a radiation dose in a radiation therapy.

US Patent:

20130002659, Jan 3, 2013

Filed:

Feb 14, 2011

Appl. No.:

13/578693

Inventors:

Steve B. Jiang - San Diego CA, US
Xun Jia - San Diego CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

G06F 15/16
G06T 15/00
G06K 9/00
G06F 15/00

US Classification:

345419, 345501, 382131, 345502

Abstract:

Techniques, apparatus and systems are disclosed for performing graphics processor unit (GPU)-based fast cone beam computed tomography (CBCT) reconstruction algorithm based on a small number of x-ray projections. In one aspect a graphics processor unit (GPU) implemented method of reconstructing a cone beam computed tomography (CBCT) image includes receiving, at the GPU, image data for CBCT reconstruction. The GPU uses an iterative process to minimize an energy functional component of the received image data. The energy functional component includes a data fidelity term and a data regularization term. The reconstructed CBCT image is generated based on the minimized energy functional component.