Fluoroscopy image verification

US7587076B2 · kind B2 · utility

Assignee

• Brainlab AG · DE

Inventors

• Florian Kraus · Penzing, DE
• Christian Maier · Kettenham, DE

Key dates

• Filing date: Aug 31, 2005
• Grant date: Sep 8, 2009
• Expiry date: Nov 6, 2027

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2090/376
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A system and method for verifying the registration of a fluoroscopy image, wherein an artificial landmark array is introduced into a radiation path of a fluoroscopy apparatus, the landmark array being trackable by a computer assisted, medical navigation system. A fluoroscopy recording is produced with the aid of the fluoroscopy apparatus, and a spatial position of the artificial landmark array at the time the fluoroscopy recording is produced is detected and stored. The fluoroscopy recording is registered onto previously acquired body image data of the navigation system using marking points mapped on the fluoroscopy recording, wherein the marking points are maps of markings on the radiation source. Verification is based on a correspondence between an image shadow of the artificial landmark array on the fluoroscopy recording and a position of the landmark array at the time the recording was produced.