Method for intraoperative generation of an updated volume dataset

US7050531B2 · 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: May 23, 2006
• Expiry date: Jan 14, 2024

Classification

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

Abstract

In a method for the intraoperative generating of an updated volume dataset, a first volume dataset is reconstructed from a series of n 2D X-ray projections (of a patient that are acquired at different angles. During a medical intervention, m 2D X-ray projections (m<n) of the patient are acquired from different angles. In a first version of the method, m 2D X-ray projections of the series of n 2D X-ray projections are replaced by the intraoperatively acquired m 2D X-ray projections, and an updated volume dataset is reconstructed using the intraoperatively acquired m 2D X-ray projections and n−m 2D X-ray projections that were not replaced in the series of n 2D X-ray projections. In a second version of the method, a second volume dataset is reconstructed with the intraoperatively acquired m 2D X-ray projections and is fused with the first volume dataset to form an updated volume dataset.