Effective detective quantum efficiency (eDQE) and effective noise equivalent quanta (eNEQ) for system optimization purposes in digital mammography

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This work investigates eDQE and eNEQ normalized for MGD to characterize and make an optimal choice between different exposure parameters for a digital mammographic system. The influence of the MTF used for eDQE calculation was investigated. The current MTF was substituted for a Free-Air MTF measured without scattered radiation but including the focal spot blurring. The eDQE method produced results consistent with SdNR methods in terms of system characterization, but does not include patient dose, eNEQ was then normalized to account for patient risk.


Original languageEnglish
Title of host publicationProc. SPIE. 8313, Medical Imaging 2012: Physics of Medical Imaging
Place of PublicationUnited States
Publication statusPublished - 23 Feb 2012
Event2012 - MI12 - SPIE Medical Imaging: The international society for optics and photonics - Town & Country Resort and Convention Center, San Diego, California, United States
Duration: 4 Feb 20129 Feb 2012


Conference2012 - MI12 - SPIE Medical Imaging
Country/TerritoryUnited States
CitySan Diego, California


  • FFDM, effective Detective Quantum Efficiency (eDQE), effective Noise Equivalent Quanta (eNEQ), detectability index (d’), Modulation Transfer Function (MTF), SdNR, image quality.

ID: 94433