C-arm computerized tomography system
US9044190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2007 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Mar 26, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/583
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for generating CT-type three dimensional imaging information from a conventional C-arm fluoroscope system. This enables the adaptation of widely used C-arm installations to provide CT-type information. The system uses a three dimensional target disposing in a fixed position relative to the subject, and obtains a sequence of video images of a region of interest of a subject while the C-arm is moved manually or by a scanning motor. Images from the video sequence are analyzed to determine the pose of the C-arm relative to the subject by analysis of the image patterns of the target. Images are selected from the video sequence according to predetermined criteria. A set of two-dimensional image data with associated positional data is obtained, which is used to reconstruct a three dimensional volumetric set of imaging data of the region of interest of the subject.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.