Estimating position of an organ with a biomechanical model

US9993663B2 · kind B2 · utility

Assignee

• KONINIKLIJKE PHILIPS N.V. · NL

Inventors

• Jörg Sabczynski · Norderstedt, DE
• Bharat Ramachandran · Morganville, US
• Ehsan Dehghan Marvast · Palo Alto, US
• Weihua Zhou · Chesterfield, US

Key dates

• Filing date: Oct 9, 2014
• Grant date: Jun 12, 2018
• Expiry date: Mar 23, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2005/1059
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

There is presented a method 100 and apparatus 200 to measure the surface of the patient (thorax and abdominal regions), e.g., during therapy delivery and (if necessary) while imaging. Together with biomechanical considerations the position of internal structures of the patient, such as an organ, and optionally a tumor in an organ, is inferred from the measured patient surface. In case the patient breaths and thus the organ and/or tumor moves, the position may be determined, which may be advantageous during, e.g., radiation therapy, since it enables that whenever the tumor is at the right position according to the radiation therapy plan, the radiation is switched on. In a specific embodiment, a finite element model is employed.