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

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

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsL.E. Antonuk, M.J. Yaffe
Pages447-456
Number of pages10
Volume4682
DOIs
StatePublished - 2002
EventMedical Imaging 2002: Physics of Medical Imaging - San Diego, CA, United States
Duration: Feb 24 2002Feb 26 2002

Other

OtherMedical Imaging 2002: Physics of Medical Imaging
CountryUnited States
CitySan Diego, CA
Period2/24/022/26/02

    Fingerprint

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Seibert, J. A., Boone, J. M., & Cooper, V. N. (2002). Determination of imaging performance of a photostimulable phosphor system for digital mammography. In L. E. Antonuk, & M. J. Yaffe (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4682, pp. 447-456) https://doi.org/10.1117/12.465588