caa a22 4500 397502133 CHVBK 20180308164535.0 cr unu---uuuuu 161202e19950101xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082494 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082494 Stieve (INVITED) F.E. INVITED Trends in X Ray Diagnosis and Nuclear Medicine [Elektronische Daten] [F.E. Stieve (INVITED)] The trend of the diagnostic process in diagnostic radiology and nuclear medicine is influenced by several factors in all countries with optimal health care. It is mainly attributable to changes in the structure of the population, to the disease frequency in relation to age, available diagnostic procedures, therapeutic possibilities and, also, to the trends in diagnostic techniques. Such tendencies are also of major influence on radiation exposure, including efficacy and efficiency measures of the diagnostic and therapeutic process and, of course, of the underlying disease, finally resulting in better health care and in higher life expectancy. The main reasons for changes in diagnosis are considered in this paper. Data collected in several countries, mainly in Europe, illustrate the different trends which, generally speaking, still increase the total number of examinations and, in spite of better radiation protection, reducing certain examinations methods, are still increasing the frequency of examinations in general as well as the estimated collective population dose per year. Radiation Protection Dosimetry Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 13-20 0144-8420 57:1-4<13 1995 57 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082494 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082494 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Stieve (INVITED) F.E. INVITED NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 13-20 0144-8420 57:1-4<13 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