Determination of imaging performance of a photostimulable phosphor system for digital mammography

J Anthony Seibert; John M Boone; Virgil N. Cooper

doi:10.1117/12.465588

Determination of imaging performance of a photostimulable phosphor system for digital mammography

J Anthony Seibert, John M Boone, Virgil N. Cooper

Radiology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Scopus citations

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	https://doi.org/10.1117/12.465588
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/Territory	United States
City	San Diego, CA
Period	2/24/02 → 2/26/02

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

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10.1117/12.465588

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

Seibert, JA , Boone, JM & Cooper, VN 2002, Determination of imaging performance of a photostimulable phosphor system for digital mammography. in LE Antonuk & MJ Yaffe (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 4682, pp. 447-456, Medical Imaging 2002: Physics of Medical Imaging, San Diego, CA, United States, 2/24/02. https://doi.org/10.1117/12.465588

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title = "Determination of imaging performance of a photostimulable phosphor system for digital mammography",

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. ",

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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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Determination of imaging performance of a photostimulable phosphor system for digital mammography

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