Abstract
This project was aimed at investigating the lesion detectability of an optically-coupled CCD X ray imaging system. The quasi-ideal observer signal-to-noise ratio (also called lesion-matched filter signal-to-noise ratio) was calculated for various clinical applications. This analysis differs from that of previous investigations in that we have analyzed jointly the effect of quantum noise and additive noise; we have also analyzed the combined effect of the contrast transfer property and the resolving power of the system. Numerical calculations were performed to determine lesion detectability and contrast-detail curves under mammographic and other clinical conditions. A standard mammographic phantom and a contrast-detail phantom were imaged to validate the calculation. The results demonstrate that the lesion detectability of a well designed optically-coupled CCD can be comparable to that of the state-of-the-art screen-film system under the same conditions.
Original language | English (US) |
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Pages (from-to) | 1506-1509 |
Number of pages | 4 |
Journal | IEEE Transactions on Nuclear Science |
Volume | 41 |
Issue number | 4 |
DOIs | |
State | Published - Aug 1994 |
Externally published | Yes |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering
- Electrical and Electronic Engineering