Evaluation of dose accuracy of radiation therapy treatment plans

US10765891B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Alfonso Agatino Isola · Eindhoven, NL
• Rolf Jürgen Weese · Norderstedt, DE
• Christoph Neukirchen · Aachen, DE
• Steffen Renisch · Eindhoven, NL
• HRISHIKESH NARAYANRAO DESHPANDE · Hamburg, DE
• Heinrich Schulz · Hamburg, DE
• Sven Kabus · Hamburg, DE
• Stéphane ALLAIRE · Toronto, CA
• Maria Luiza BONDAR · Waalre, NL

Key dates

• Filing date: Oct 29, 2018
• Grant date: Sep 8, 2020
• Expiry date: Dec 7, 2038

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2005/1074
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to a system and a method for evaluating a treatment plan for an external radiation therapy treatment, the treatment plan comprising parameters for controlling an external radiation therapy apparatus during the treatment. The system comprises a database storing historic treatment plans and storing for each historic treatment plan a quality parameter indicative of whether a deviation between a planned dose distribution and a measured dose distribution resulting from an execution of the treatment plan is within an acceptable limit. An evaluation unit determines a threshold value for each of a plurality of treatment plan metrics based on the historic treatment plans and the associated quality parameters. Further, the evaluation unit calculates a value of each of the metrics for the treatment plan and compares the value of each of the metrics with the threshold value determined for the respective metric.