caa a22 4500 397501935 CHVBK 20180308164534.0 cr unu---uuuuu 161202e19950101xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082578 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082578 Warren Forward H.M. Patient Dosimetry During Chest Radiography [Elektronische Daten] [H.M. Warren Forward] Reasons for the variation in patient doses from diagnostic radiography procedures were investigated by assessing skin doses obtained from patients undergoing chest examinations. Data was collected from 54 tubes, involving over 1200 patients undergoing PA chest examinations. The 75th percentile value was 0.18 mGy compared to 0.26 mGy previously measured by the National Radiological Protection Board in a UK national survey. The applied potential is the main contributor to patient skin dose variation. If all departments were to use at least 90 kVP, the mean skin dose will be reduced by 30%, the maximum reduction for a tube currently using 54 kVP would be 61%. Only 31% of hospitals were using film-screen combinations with speeds of 400. Dose and cost savings can be achieved by increasing the frequency with which the correct exposure settings are selected at the first attempt, thus reducing the repeat rate. This, together with modification to departmental procedure on the correct approach in assessing exposure factors in respect to patient size, will lead to a reduction in the total effective dose of approximately 11%. Radiation Protection Dosimetry Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 441-444 0144-8420 57:1-4<441 1995 57 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082578 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082578 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Warren Forward H.M. NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 441-444 0144-8420 57:1-4<441 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