caa a22 4500 39750246X CHVBK 20180308164535.0 cr unu---uuuuu 161202e19950101xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082526 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082526 Optimisation of the Design of Antiscatter Grids by Computer Modelling [Elektronische Daten] [D.R. Dance, M. Sandborg, G. Alm Carlsson, J. Persliden] A Monte Carlo computer program has been developed to model diagnostic radiological examinations, and has been used to study and optimise the design of antiscatter grids. This is important because the use of an inappropriate or poorly designed grid can lead to increased patient dose. Optimal grid parameters may be different for large and small scattering volumes. The program treats the patient as a rectangular block of tissue and takes account of the grid and image receptor. Image quality is measured in terms of contrast and signal-to-noise ratio and patient risk in terms of mean absorbed dose. Test objects of appropriate size and composition are used in the calculation of these image quality parameters. A new performance comparison and optimisation procedure has been developed, and the program has been used to study grid design in screen-film and digital radiology for small, medium and large scattering volumes. Radiation Protection Dosimetry Dance D.R. aut Sandborg M. aut Alm Carlsson G. aut Persliden J. aut Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 207-210 0144-8420 57:1-4<207 1995 57 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082526 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082526 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dance D.R. aut NATIONALLICENCE 700 1- Sandborg M. aut NATIONALLICENCE 700 1- Alm Carlsson G. aut NATIONALLICENCE 700 1- Persliden J. aut NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 207-210 0144-8420 57:1-4<207 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