Article: article from journal or magazin.
Letter (letter): Communication to the publisher.
Influence of cassette type on the DQE of CR systems.
Publication types: Comment ; Journal Article - Publication Status: ppublish
In our recent paper by Monnin et al. [Med. Phys. 33, 411-420 (2006)], an objective analysis of the relative performance of a computed radiography (CR) system using both standard single-side (ST-VI) and prototype dual-side read (ST-BD) plates was reported. The presampled modulation transfer function (MTF), noise power spectrum (NPS), and detective quantum efficiency (DQE) for the systems were determined at three different beam qualities representative of paediatric chest radiography, at an entrance detector air kerma of 5 microGy. Experiments demonstrated that, compared to the standard single-side read system, the MTF for the dual-side read system was slightly reduced, but a significant decrease in image noise resulted in a marked increase in DQE (+40%) in the low spatial frequency range. However, the DQE improvement for the ST-BD plate decreased with increasing spatial frequency, and, at spatial frequencies above 2.2 mm(-1), the DQE of the dual-side read system was lower than that of the single-side one.
Equipment Design, Equipment Failure Analysis, Humans, Lasers, Radiographic Image Enhancement, Radiographic Image Interpretation, Computer-Assisted, Radiometry, Reproducibility of Results, Scattering, Radiation, Sensitivity and Specificity, Spectrometry, X-Ray Emission
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