Gamma camera, spect device, pet device, and method for generating measured gamma ray images
US9870608B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2014 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Feb 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10108
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A unit (33) for generating count images for separate energy windows generates main measured count images and auxiliary measured count images on the basis of gamma ray (6) count information measured by a detector head (10). A main measurement window direct ray count rate estimation unit (42) estimates a count rate for direct gamma rays in a main measurement energy window, doing so by subtracting a scattered gamma ray count rate for an auxiliary measurement energy window, which has been estimated from an auxiliary measured count image and detector response data by an auxiliary measurement window scattered ray count rate estimation unit (41), from the main measured count image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.