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dc.contributor.authorSá dos Reis, C.
dc.contributor.authorSoares, F.
dc.contributor.authorBartoli, G.
dc.contributor.authorDastan, K.
dc.contributor.authorDhlamini, Z.S.
dc.contributor.authorHussain, A.
dc.contributor.authorKroode, D.
dc.contributor.authorMcEntee, M.F.
dc.contributor.authorMekis, N.
dc.contributor.authorThompson, J.D.
dc.date.accessioned2020-12-04T15:55:59Z
dc.date.available2020-12-04T15:55:59Z
dc.date.issued2020-05-16
dc.identifier.citationdos Reis, C.S., Soares, F., Bartoli, G., Dastan, K., Dhlamini, Z.S., Hussain, A., Kroode, D., McEntee, M.F., Mekis, N. and Thompson, J.D., 2020. Reduction of visual acuity decreases capacity to evaluate radiographic image quality. Radiography, 26(supplement 2), pp. 1-9.en_US
dc.identifier.issn1078-8174
dc.identifier.doi10.1016/j.radi.2020.04.012
dc.identifier.urihttp://hdl.handle.net/10545/625446
dc.description.abstractTo determine the impact of reduced visual acuity on the evaluation of a test object and appendicular radiographs. Visual acuity was reduced by two different magnitudes using simulation glasses and compared to normal vision (no glasses). During phase one phantom images were produced for the purpose of counting objects by 13 observers and on phase 2 image appraisal of anatomical structures was performed on anonymized radiographic images by 7 observers. The monitors were calibrated (SMPTE RP133 test pattern) and the room lighting was maintained at 7 ± 1 lux. Image display and data on grading were managed using ViewDEX (v.2.0) and the area under the visual grading characteristic (AUCVGC) was calculated using VGC Analyzer (v1.0.2). Inferential statistics were calculated using SPSS. For the evaluation of appendicular radiographs the total interpretation time was longer when visual acuity was reduced with 2 pairs of simulation glasses (15.4 versus 8.9 min). Visual grading analysis showed that observers can lose the ability to detect anatomical and contrast differences when they have a simulated visual acuity reduction, being more challenging to differentiate low contrast details. No simulation glasses, compared to 1 pair gives an AUCVGC of 0.302 (0.280, 0.333), that decreases to 0.197 (0.175, 0.223) when using 2 pairs of glasses. Reduced visual acuity has a significant negative impact on the evaluation of test objects and clinical images. Further work is required to test the impact of reduced visual acuity on visual search, technical evaluation of a wider range of images as well as pathology detection/characterization performance. It seems that visual performance needs to be considered to reduce the risks associated with incomplete or incorrect diagnosis. If employers or professional bodies were to introduce regular eye tests into health screening it may reduce the risk of misinterpretation as a result of poor vision.en_US
dc.description.sponsorshipN/Aen_US
dc.language.isoenen_US
dc.publisherElsevier BVen_US
dc.relation.urlhttps://doi.org/10.1016/j.radi.2020.04.012en_US
dc.relation.urlhttp://usir.salford.ac.uk/id/eprint/57060en_US
dc.rights© 2020 The College of Radiographers. Published by Elsevier Ltd. All rights reserved.
dc.rights.urihttps://www.elsevier.com/tdm/userlicense/1.0/
dc.subjectRadiology Nuclear Medicine and imagingen_US
dc.titleReduction of visual acuity decreases capacity to evaluate radiographic image qualityen_US
dc.typeArticleen_US
dc.contributor.departmentUniversity of Applied Sciences and Arts, Western Switzerlanden_US
dc.contributor.departmentInstituto Federal de Santa Catarina (IFSC), Av. Mauro Ramos, 950, Florianopolis, Brazilen_US
dc.contributor.departmentUniversity of Salforden_US
dc.contributor.departmentCentral University of Technology, 20 President Brand St, Bloemfontein Central, Bloemfontein, 9301, South Africaen_US
dc.contributor.departmentUniversity of Derbyen_US
dc.contributor.departmentHanze University of Applied Sciences, Groningen, Postbus 30030, 9700, RM, Groningenen_US
dc.contributor.departmentUniversity College Corken_US
dc.contributor.departmentUniversity of Ljubljana, Zdravstvena Pot 5, 1000 Ljubljana, Sloveniaen_US
dc.identifier.journalRadiographyen_US
dc.identifier.piiS107881742030064X
dc.source.journaltitleRadiography
dc.source.volume26
dc.source.beginpageS79
dc.source.endpageS87
dcterms.dateAccepted2020-04-22
dc.author.detailN/Aen_US


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