Characterising the eos slot-scanning system with the effective detective quantum efficiency

In this study, the EOS system was characterised using the eDQE in imaging conditions similar to those used in clinical practice: with phantoms of different widths placed in the X-ray beam, for various incident air kerma and tube voltages corresponding to the phantom thickness. Scatter fractions in EOS images were extremely low, around 2 % for all configurations. Maximum eDQE values spanned 9–14.8 % for a large range of air kerma at the detector plane from 0.01 to 1.34 µGy. These figures were obtained with non-optimised EOS setting but still over-performed most of the maximum eDQEs recently assessed for various computed radiology and digital radiology systems with antiscatter grids.

Source: Radiation Protection Dosimetry - June 6, 2016 Category: Radiology Authors: Clavel, A. H., Monnin, P., Letang, J. M., Verdun, F. R., Darbon, A. Tags: Paper Source Type: research