Method and system for improved correction of registration error in a fluoroscopic image
US7097357B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2004 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Oct 1, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/376
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Certain embodiments of the present invention provide a method and system for improved registration of image and navigation references used in image-guided operations. Certain embodiments of the system include an image acquisition device for obtaining at least one image of an object, a first calibration fixture positioned in relation to the image acquisition device, and a second calibration fixture positioned in relation to the object. The position data from first calibration fixture is used to form a characterization of the image acquisition device, which is corrected by position data from the second calibration fixture. In an embodiment, a first calibration fixture is affixed to a C-arm camera and a smaller second calibration fixture is affixed to a patient. Data from the first and second calibration fixtures is used with tracking data to calibrate the image acquisition data and register reference points in image and navigation reference frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.