caa a22 4500 39750280X CHVBK 20180308164536.0 cr unu---uuuuu 161202e19950101xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082492 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082492 Oestmann (INVITED) J.W. INVITED The Scientific Work-Up of Radiographic Image Quality Now and a Decade Ago: The Radiologist's Approach [Elektronische Daten] [J.W. Oestmann (INVITED)] The past decade has seen a number of efforts to increase image quality and decrease examination hazards to the patient in medical imaging. A comparison of image quality studies in the early 1980s with those of the early 1990s shows that the amount of scientific publications on the topic as well as their sophistication has grown. The concept of diagnostically relevant structures as well as the observer performance test with receiver operator characteristics analysis has been well received. On the basis of our own experience in projection radiography a three-step approach to the evaluation or optimisation of new imaging modalities is proposed: (1) base evaluation applying adequate physical parameters; (2) subjective optimisation of the system with the diagnostic objectives in mind (i.e. the diagnostically relevant structures in radiographic studies) to generate a set of alternative hypotheses; and (3) comparison of these hypotheses with clinically oriented observed performance tests. Radiation Protection Dosimetry Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 9-11 0144-8420 57:1-4<9 1995 57 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082492 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082492 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Oestmann (INVITED) J.W. INVITED NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 9-11 0144-8420 57:1-4<9 1995 57 rpd Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford