Interactive computer-aided editor for compensators used in radiotherapy treatment planning

US10850119B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Michael Meltsner · Fitchburg, US
• Ying Xiong · San Diego, US
• Michael Kaus · Hamburg, DE

Key dates

• Filing date: Jul 9, 2010
• Grant date: Dec 1, 2020
• Expiry date: Jun 28, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2005/1096
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

When constructing compensators for radiation therapy using ion or proton radiation beams, a computer-aided compensator editing method includes overlaying an initial 3D compensator model on an anatomical image of a target mass (e.g., a tumor) in a patient, along with radiation dose distribution information. A user manipulates pixels or voxels in the compensator model on a display, and a processor automatically adjusts the dose distribution according to the user edits. The user iteratively adjusts the compensator model until the dose distribution is optimized, at which time the optimized compensator model is stored to memory and/or output to a machining device that constructs a compensator from the optimized model.