Method for processing radiological images to determine a 3D position of a needle
US8600138B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2011 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Apr 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/436
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method to process images for interventional imaging, wherein a 3D image of an object is visualized with a medical imaging system, the medical imaging system comprising an X-ray source and a detector, is provided. The method comprises acquiring a plurality of 2D-projected images of the object along a plurality of orientations of the imaging chain, wherein a rectilinear instrument has been inserted into the object. The method also comprises determining a 3D reconstruction of the instrument such that a plurality of 2D projections of the 3D image of the instrument, along the respective orientations in the 2D-projected images of the object were acquired, are closest to the acquired 2D-projected images of the object. The method further comprises superimposing the 3D reconstruction of the instrument over the 3D image of the object so as to obtain a 3D image comprising the object and the instrument.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.