Dynamic bowtie filter and methods of using the same
US11197654B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2018 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Sep 5, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An imaging system (100) includes a radiation source (708) that emits radiation that traverses an examination region (706), a radiation detector array (716) with a plurality of detectors (1104N) that detect the radiation that traverses the examination region, a dynamic bowtie filter (718) between the radiation source and the examination region, a first motor (7221) and a second motor (7222), and a controller (724). The dynamic bowtie filter includes a first half wedge (7181) and a second half wedge (7182). The first motor is in mechanical communication with the first half wedge and moves the first half wedge and the second motor is in mechanical communication with the second half wedge and moves the second half wedge. The controller independently controls the first and second motors to move the first and second half wedges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.