Advanced nuclear medicine system
US5689115A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1995 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Nov 24, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/037
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of acquiring an analog electrical pulse signal caused by a radiation event impinging on a detector crystal and viewed by a plurality of detector units. An image is formed based on a plurality of the events, each of which is captured by some of the detector units. The method of acquiring includes. PA1 (a) adding a linearity enhancement signal to the analog signal; and PA1 (b) converting the analog signal to a digital signal, where the linearity enhancement signal is slowly varying relative to the length of an analog signal pulse. Alternatively or additionally, a resolution enhancement signal is added to the analog signal before (b) converting the analog signal to a digital signal. The resolution enhancement signal varying relatively quickly compared to the length of an analog signal pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.