caa a22 4500 397504365 CHVBK 20180308164540.0 cr unu---uuuuu 161202e19950101xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082527 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082527 Results from an Optimisation of Grid Design in Diagnostic Radiology [Elektronische Daten] [M. Sandborg, D.R. Dance, G. Alm Carlsson, J. Persliden] Results of an optimisation of grid design using a Monte Carlo model of the imaging chain are presented. Patient dose is significantly reduced by changing from aluminium to fibre grid covers and interspaces while keeping contrast constant. Numerous commercial grids have been investigated to identify superior designs. For optimal use, grids with high strip density require thinner lead strips and higher ratios than grids with low strip density. In paediatric radiology, grids with very thin strips (10-20 µm), or an air gap can be considered. In an adult lumbar spine examination, the optimal grid ratios are higher (greater than 15) than in commercial grids. This is particularly accentuated for grids with high strip density, fibre interspaces and in the lateral view. For a given imaging task, it is possible to identify grids of different design that have good performance, provided an appropriate strip width and tube potential are selected. Radiation Protection Dosimetry Sandborg M. aut Dance D.R. aut Alm Carlsson G. aut Persliden J. aut Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 211-215 0144-8420 57:1-4<211 1995 57 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082527 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082527 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sandborg M. aut NATIONALLICENCE 700 1- Dance D.R. 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), 211-215 0144-8420 57:1-4<211 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