1. Peters SE, Brennan PC (2002) Digital radiography: are the manufacturers’ settings too high? Optimisation of the Kodak digital radiography system with aid of the computed radiography dose index. Eur Radiol 12:2381–2387
2. Thijssen MAO, Bijkerk KR, van der Burght RJM (1998) Manual CDRAD-phantom type 2.0. Project Quality Assurance in Radiology, Section Clinical Physics. Department of Radiology. University Hospital Nijmegen, St. Radboud, The Netherlands
3. Thijssen MAO, Thijssen HOM, Merx JL, Lindeijer JM, Bijkerk KR (1989) A definition of image quality: the image quality figure. In: Moores BM, Wall BF, Eriskat H, Schibilla H (eds) BIR Report 20: optimization of image quality and patient exposure in diagnostic radiology. The British Institute of Radiology, London, pp 29–34
4. Månsson LG (2000) Methods for the evaluation of image quality: a review. Radiat Prot Dosim 90:89–99
5. Commission of the European Communities (1996) European guidelines on quality criteria for diagnostic radiographic images, EUR 16260. Office for Official Publications of the European Communities, Luxembourg