Development and implementation of a DQE technique to assess image quality for digital radiology systems in the Saolta University Healthcare Group

Detective quantum efficiency (DQE) historically has been a commonly used metric to assess overall image quality of radiographic systems. It is defined as the ratio of the squared image signal-to-noise ratio to the number of incident X-ray photons. The DQE describes how efficiently a system translates incident X-ray photons into useful signal (relative to noise) within an image. However it is a relatively complex technique and therefore very few Medical Physicists working in Diagnostic Imaging Departments actually use the technique in practice and instead apply QA protocols based on sets of Imaging test objects whose results are prone to observer subjectivity.

Source: Physica Medica: European Journal of Medical Physics - June 30, 2016 Category: Journals (General) Authors: Matthew Donoghue, Brendan Tuohy, Niall Colgan, David Lavin, Wil van der Putten Tags: Poster Session – for Consideration for the IEL Bursary IEL5 Source Type: research