Method and apparatus for variable X-ray filtration
US9439612B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2015 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Oct 29, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/043
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention pertains to a system and method for adaptive X-ray filtration comprising a volume of X-ray attenuating material with a central less attenuating three-dimensional region. The volume of X-ray attenuating material can be positioned within 10 cm from an X-ray source and rotated around an internal axis of rotation. The volume of X-ray attenuating material can be symmetric around the internal axis while the central less attenuating region can be asymmetric around the internal axis. Rotating the volume by a predetermined angle around the internal axis can change the amount of attenuation of an X-ray beam through the filter. The volume can be rotated by the same predetermined angle as an imaging subject or X-ray source and detector are rotated during X-ray image acquisition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.