Method for intraoperative generation of an updated volume data set

US6912265B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Axel Hebecker · Spardorf, DE
• Matthias Mitschke · Nuremberg, DE
• Norbert Rahn · Forchheim, DE
• Dieter Ritter · Bad Mergentheim, DE

Key dates

• Filing date: Sep 30, 2003
• Grant date: Jun 28, 2005
• Expiry date: Sep 30, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S378/901
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

To intraoperatively generate an updated volume data set in which a image information of biological tissue is volume data set representing reconstructed from a series of n 2D biological tissue x-ray projections, one version, in intraoperatively acquired m 2D biological tissue x-ray projections the biological tissue 2D contour is segmented and this is back-projected in the reconstructed volume data set. In another version, in the volume data set the biological tissue 3D contour is segmented and this is projected in intraoperatively acquired m biological tissue 2D x-ray projections. The 3D contour is visually repositioned by projection in the m 2D x-ray projections in the volume data set, until its projection is substantially congruent with the biological tissue image information in the respective 2D x-ray projections. In both versions, a volume data set updated around the intraoperatively determined biological tissue 3D contour is generated.