caa a22 4500 397504594 CHVBK 20180308164541.0 cr unu---uuuuu 161202e19950101xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082572 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082572 The Increasing Importance of X Ray Computed Tomography as a Source of Medical Exposure [Elektronische Daten] [P.C. Shrimpton, B.F. Wall] Computed tomography (CT) has continued to expand steadily throughout the world since the technique was introduced into clinical practice in 1972. It has, of course, made a substantial impact on patient care, although national surveys have established the increasing importance of CT as a source of medical exposure. Information for the UK in 1993 suggests that the contribution from CT to collective dose from X rays may have risen to about a third. It is essential that there should be a continuing review of CT practice so as to take advantage of all opportunities for reducing exposure without loss of benefit to patients. A survey in the UK has indicated potential scope for improvement in the optimisation of protection for patients undergoing CT examinations and the National Radiological Protection Board has made general recommendations aimed at ensuring better control of patient dose and, in particular, advocating the development of reference doses for CT. Radiation Protection Dosimetry Shrimpton P.C. aut Wall B.F. aut Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 413-415 0144-8420 57:1-4<413 1995 57 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082572 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082572 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shrimpton P.C. aut NATIONALLICENCE 700 1- Wall B.F. aut NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 413-415 0144-8420 57:1-4<413 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