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Correcting for possible tissue distortion between provocation and assessment in skin testing: The divergent beam UVB photo-test
St Thomas Hospital, England .
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Kirurgi. Linköpings universitet, Hälsouniversitetet.
Linköpings universitet, Institutionen för medicin och hälsa, Avdelningen för samhällsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Närsjukvården i västra Östergötland, Forsknings- och utvecklingsenheten för Närsjukvården i Östergötland.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för inflammationsmedicin. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Hjärt- och Medicincentrum, Hudkliniken i Östergötland.
2013 (engelsk)Inngår i: Skin research and technology, ISSN 0909-752X, E-ISSN 1600-0846, Vol. 19, nr 4, s. 368-374Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

BackgroundIn tissue viability imaging (TiVi), an assessment method for skin erythema, correct orientation of skin position from provocation to assessment optimizes data interpretation. Image processing algorithms could compensate for the effects of skin translation, torsion and rotation realigning assessment images to the position of the skin at provocation. less thanbrgreater than less thanbrgreater thanMethodsA reference image of a divergent, UVB phototest was acquired, as well as test images at varying levels of translation, rotation and torsion. Using 12 skin markers, an algorithm was applied to restore the distorted test images to the reference image. less thanbrgreater than less thanbrgreater thanResultsThe algorithm corrected torsion and rotation up to approximately 35 degrees. The radius of the erythemal reaction and average value of the input image closely matched that of the reference images true value. less thanbrgreater than less thanbrgreater thanConclusionThe image de-warping procedure improves the robustness of the response image evaluation in a clinical research setting and opens the possibility of the correction of possibly flawed images performed away from the laboratory setting by the subject/patient themselves. This opportunity may increase the use of photo-testing and, by extension, other late response skin testing where the necessity of a return assessment visit is a disincentive to performance of the test.

sted, utgiver, år, opplag, sider
Wiley-Blackwell , 2013. Vol. 19, nr 4, s. 368-374
Emneord [en]
tissue viability imaging, TiVi, photo-test, spectroscopy, image correction
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-100468DOI: 10.1111/srt.12055ISI: 000325547300002OAI: oai:DiVA.org:liu-100468DiVA, id: diva2:663001
Tilgjengelig fra: 2013-11-08 Laget: 2013-11-08 Sist oppdatert: 2017-12-06

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