Registration method for navigation-guided medical interventions

US6851855B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Matthias Mitschke · Nuremberg, DE
• Dieter Ritter · Bad Mergentheim, DE

Key dates

• Filing date: Apr 10, 2003
• Grant date: Feb 8, 2005
• Expiry date: Apr 10, 2023

Classification

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

Abstract

In a registration method for navigation-guided medical interventions using a position acquisition system, an X-ray device and an X-ray calibration phantom having X-ray-positive marks, the coordinates of marks of the X-ray calibration phantom that are present in the measurement volume of the X-ray device and imaged in the reconstructed volume are determined in a coordinate system allocated to the measurement volume of the X-ray device) and in a coordinate system allocated to the position acquisition system. The coordinate transformation between the coordinate system allocated to the measurement volume and the coordinate system allocated to the position acquisition system is determined on the basis of the coordinates of the X-ray-positive marks in the coordinate system allocated to the measurement volume and on the basis of the coordinates of the X-ray-positive marks in the coordinate system allocated to the position acquisition system.