On-line energy coincidence method and system for all-digital PET system
US10149657B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2013 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Jul 29, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2985
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An on-line energy coincidence method for an all-digital PET system, comprising: a detection module conducting information collection on a scintillation pulse, forming a single event data frame and sending it to an upper computer; the upper computer conducting two-bit position distribution statistics on an incident gamma photon event and conducting position spectrum partition; performing statistics on an energy distribution spectrum of each crystal bar, so as to acquire an energy correction value; the detection module uploading a crystal bar partition data table and an energy peak correction data table; starting information collection of on-line energy correction; when an event is coming, according to a two-dimensional coordinate thereof, from the crystal partition table, searching for a crystal bar number corresponding thereto, and searching for an energy correction value from the energy correction table; and sending data passing the energy coincidence to the upper computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.