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Visual function assessment in medical imaging research

2015-11Journal article Restricted access
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dc.contributor.authorLança, Carla
dc.contributor.authorThompson, John D.
dc.contributor.authorLança, Luís
dc.contributor.authorHogg, Peter
dc.date.accessioned2015-11-05T14:52:53Z
dc.date.available2015-11-05T14:52:53Z
dc.date.issued2015-11
dc.description.abstractBackground - Medical image perception research relies on visual data to study the diagnostic relationship between observers and medical images. A consistent method to assess visual function for participants in medical imaging research has not been developed and represents a significant gap in existing research. Methods - Three visual assessment factors appropriate to observer studies were identified: visual acuity, contrast sensitivity, and stereopsis. A test was designed for each, and 30 radiography observers (mean age 31.6 years) participated in each test. Results - Mean binocular visual acuity for distance was 20/14 for all observers. The difference between observers who did and did not use corrective lenses was not statistically significant (P = .12). All subjects had a normal value for near visual acuity and stereoacuity. Contrast sensitivity was better than population norms. Conclusion - All observers had normal visual function and could participate in medical imaging visual analysis studies. Protocols of evaluation and populations norms are provided. Further studies are necessary to understand fully the relationship between visual performance on tests and diagnostic accuracy in practice.pt_PT
dc.identifier.citationLança C, Thompson JD, Lança L, Hogg P. Visual function assessment in medical imaging research. Radiol Technol. 2015;87(2):129-38.pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/5356
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAmerican Society of Radiologic Technologistspt_PT
dc.relation.publisherversionhttp://www.radiologictechnology.org/content/87/2/129.abstractpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-sa/4.0/pt_PT
dc.subjectOphthalmologypt_PT
dc.subjectRadiologypt_PT
dc.subjectVisual functionpt_PT
dc.subjectMedical imagingpt_PT
dc.subjectVisual acuitypt_PT
dc.subjectContrast sensitivitypt_PT
dc.subjectStereopsispt_PT
dc.subjectBinocular visual acuitypt_PT
dc.titleVisual function assessment in medical imaging researchpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage138pt_PT
oaire.citation.startPage129pt_PT
oaire.citation.titleRadiologic Technologypt_PT
oaire.citation.volume87pt_PT
person.familyNameLança
person.givenNameCarla
person.identifier.ciencia-id601A-6412-BF2F
person.identifier.orcid0000-0001-9918-787X
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0320b455-ee19-4670-8bf2-10dce9de1bec
relation.isAuthorOfPublication.latestForDiscovery0320b455-ee19-4670-8bf2-10dce9de1bec

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