Abstract
Quantitative analysis of a prototype photostimulable phosphor system for digital mammography was performed. The pre-sampled MTF, noise power spectrum (NPS), noise equivalent quanta (NEQ), and detective quantum efficiency (DQE) were measured at 26 and 32 kVp to assess the imaging performance of a commercial computed radiography system dedicated for mammographic imaging. The pre-sampled MTF demonstrated 5% modulation at 8 lp/mm with a small dependence on kVp, and noise power estimates indicated x-ray quantum-limited spectral characteristics from 2 mR up to ∼30 mR incident exposure. Maintenance of x-ray information content up to ∼500,000 quanta/mm 2 based upon NEQ measurements was demonstrated. DQE (0 mm -1) was 30-50%, DQE (2.5 mm -1) was 15-25%, and DQE (4 mm -1) was 5-15%, depending on kVp, incident exposure, and readout direction. A significant increase in DQE compared to previous CR mammography implementations was found. In addition to the quantitative measurements, qualitative experience suggests that CR mammography is essentially equivalent to mannnography screen-film detector systems.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | L.E. Antonuk, M.J. Yaffe |
| Pages | 447-456 |
| Number of pages | 10 |
| Volume | 4682 |
| DOIs | |
| State | Published - 2002 |
| Event | Medical Imaging 2002: Physics of Medical Imaging - San Diego, CA, United States Duration: Feb 24 2002 → Feb 26 2002 |
Other
| Other | Medical Imaging 2002: Physics of Medical Imaging |
|---|---|
| Country | United States |
| City | San Diego, CA |
| Period | 2/24/02 → 2/26/02 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Determination of imaging performance of a photostimulable phosphor system for digital mammography. / Seibert, J Anthony; Boone, John M; Cooper, Virgil N.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / L.E. Antonuk; M.J. Yaffe. Vol. 4682 2002. p. 447-456.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Determination of imaging performance of a photostimulable phosphor system for digital mammography
AU - Seibert, J Anthony
AU - Boone, John M
AU - Cooper, Virgil N.
PY - 2002
Y1 - 2002
N2 - Quantitative analysis of a prototype photostimulable phosphor system for digital mammography was performed. The pre-sampled MTF, noise power spectrum (NPS), noise equivalent quanta (NEQ), and detective quantum efficiency (DQE) were measured at 26 and 32 kVp to assess the imaging performance of a commercial computed radiography system dedicated for mammographic imaging. The pre-sampled MTF demonstrated 5% modulation at 8 lp/mm with a small dependence on kVp, and noise power estimates indicated x-ray quantum-limited spectral characteristics from 2 mR up to ∼30 mR incident exposure. Maintenance of x-ray information content up to ∼500,000 quanta/mm 2 based upon NEQ measurements was demonstrated. DQE (0 mm -1) was 30-50%, DQE (2.5 mm -1) was 15-25%, and DQE (4 mm -1) was 5-15%, depending on kVp, incident exposure, and readout direction. A significant increase in DQE compared to previous CR mammography implementations was found. In addition to the quantitative measurements, qualitative experience suggests that CR mammography is essentially equivalent to mannnography screen-film detector systems.
AB - Quantitative analysis of a prototype photostimulable phosphor system for digital mammography was performed. The pre-sampled MTF, noise power spectrum (NPS), noise equivalent quanta (NEQ), and detective quantum efficiency (DQE) were measured at 26 and 32 kVp to assess the imaging performance of a commercial computed radiography system dedicated for mammographic imaging. The pre-sampled MTF demonstrated 5% modulation at 8 lp/mm with a small dependence on kVp, and noise power estimates indicated x-ray quantum-limited spectral characteristics from 2 mR up to ∼30 mR incident exposure. Maintenance of x-ray information content up to ∼500,000 quanta/mm 2 based upon NEQ measurements was demonstrated. DQE (0 mm -1) was 30-50%, DQE (2.5 mm -1) was 15-25%, and DQE (4 mm -1) was 5-15%, depending on kVp, incident exposure, and readout direction. A significant increase in DQE compared to previous CR mammography implementations was found. In addition to the quantitative measurements, qualitative experience suggests that CR mammography is essentially equivalent to mannnography screen-film detector systems.
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UR - http://www.scopus.com/inward/citedby.url?scp=0036032241&partnerID=8YFLogxK
U2 - 10.1117/12.465588
DO - 10.1117/12.465588
M3 - Conference contribution
AN - SCOPUS:0036032241
VL - 4682
SP - 447
EP - 456
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Antonuk, L.E.
A2 - Yaffe, M.J.
ER -