Modeling the performance characteristics of computed radiography (CR) systems

Srinivasan Vedantham, Andrew Karellas

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Computed radiography (CR) using storage phosphors is widely used in digital radiography and mammography. A cascaded linear systems approach wherein several parameter values were estimated using Monte Carlo methods was used to model the image formation process of a single-side read "flying spot" CR system using a granular phosphor. Objective image quality metrics such as modulation transfer function and detective quantum efficiency were determined using this model and show good agreement with published empirical data. A model such as that addressed in this work could allow for improved understanding of the effect of storage phosphor physical properties and CR reader parameters on objective image quality metrics for existing and evolving CR systems.

Original languageEnglish (US)
Article number5423312
Pages (from-to)790-806
Number of pages17
JournalIEEE Transactions on Medical Imaging
Issue number3
StatePublished - Mar 2010


  • Cascaded linear systems
  • Computed radiography (CR)
  • Modeling
  • Monte Carlo methods
  • Radiography

ASJC Scopus subject areas

  • Software
  • Radiological and Ultrasound Technology
  • Computer Science Applications
  • Electrical and Electronic Engineering


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