Crystal-based coincidence timing calibration method
US7030382B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2005 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Jan 3, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2985
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method of calibrating detectors in a detector ring of a PET scanner, each detector including a plurality of crystals, the PET scanner having a field of view, is disclosed. The method comprises collecting timing data indicative of coincidence events occurring between each pair of crystals within the field of view. The method further comprises determining a detector adjustment value for each detector, determining a crystal adjustment value for each crystal in each detector, and discretizing the crystal adjustment value for each crystal to produce a discretized crystal adjustment value for each crystal. Lastly, the method comprises calibrating each detector by applying the discretized crystal adjustment value for each crystal in each detector to the collected timing data indicative of coincidence events.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.