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

US9538976B2 · kind B2 · utility

Assignees

• The Board of Trustees of the Leland Stanford Junior University · US
• The University of Sydney · AU

Inventors

• Paul J. Keall · Stanford, US
• Ricky O'Brien · Sydney, AU
• Benjamin Cooper · Dover, US
• Jun Lu · Fayetteville, US
• Jeffrey F. Williamson · Chesterfield, US

Key dates

• Filing date: Jul 27, 2012
• Grant date: Jan 10, 2017
• Expiry date: Mar 11, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2005/1061
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

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.