Signal processing in scintillation cameras for nuclear medicine
US5504334A · kind A · utility
31Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1994 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Jun 10, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4258
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In order to average out thermal noise but to magnify small value photon signals resulting from a gamma ray event in a scintillation camera having an array of photodetectors arranged in rows and column, the photon signals are summed for each row and summed for each column as a first step in the processing of the signals. As a second step the summed signals are weighted in accordance with an approximation to an energy distribution curve, and the weighted signals are then further weighted and summed for determining the position of the gamma ray event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.