Three-dimensionally heterogeneous PET system
US11531125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2017 |
| Grant date | Dec 20, 2022 |
| Priority date | — |
| Expiry date | May 4, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The application provides a three-dimensionally heterogeneous PET system comprising at least two heterogeneous detector modules, each comprising at least two kinds of crystal strips closely arranged to form different detection performances levels for different kinds of crystal strips and same detection performances levels for same kind of crystal strips. Parameters of detection performances of crystal strips comprise energy resolution, density, size and light output, wherein different detection performances levels for crystal strips comprise one or more of parameters of detection performances of crystal strips being in different levels. Compared with a high spatial resolution PET system, the application effectively reduces manufacturing costs of a PET system without significantly reducing spatial resolution thereof. Compared with an ordinary spatial resolution PET system, it improves spatial resolution of a PET system by slightly increasing its cost, and can also provide imaging field of view with high spatial resolution in radial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.