{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T21:20:14Z","timestamp":1777929614829,"version":"3.51.4"},"reference-count":20,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2013,10,7]],"date-time":"2013-10-07T00:00:00Z","timestamp":1381104000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Skin Research and Technology"],"published-print":{"date-parts":[[2014,5]]},"abstract":"<jats:sec><jats:title>Background\/aims<\/jats:title><jats:p>It is often difficult to differentiate between allergic and irritant patch test reactions by visual inspection. The purpose of this study was to test an image analysis\u2010based method that differentiates between the two reactions by quantifying the degree of erythema at the patch test site.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 172 Japanese patients were patch\u2010tested with sodium lauryl sulfate (<jats:styled-content style=\"fixed-case\">SLS<\/jats:styled-content>) and nickel sulfate, followed by digital photography and visual evaluation of the patch test areas by dermatologists at 48 and 72\u00a0h. The digital images were converted to erythema index (<jats:styled-content style=\"fixed-case\">EI<\/jats:styled-content>) images by image processing, and changes in \u0394<jats:styled-content style=\"fixed-case\">EI<\/jats:styled-content> (the difference in the <jats:styled-content style=\"fixed-case\">EI<\/jats:styled-content> between the patch test site and the adjacent normal skin) values were analyzed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The \u0394<jats:styled-content style=\"fixed-case\">EI<\/jats:styled-content> was significantly increased at 72\u00a0h relative to that at 48\u00a0h for positive nickel sulfate reactions (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.0001), while no significant difference in the \u0394<jats:styled-content style=\"fixed-case\">EI<\/jats:styled-content> was found for <jats:styled-content style=\"fixed-case\">SLS<\/jats:styled-content> reactions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Using image analysis, allergic patch test reactions may be distinguished from irritant reactions by evaluating the change in the degree of erythema at 48 and 72\u00a0h.<\/jats:p><\/jats:sec>","DOI":"10.1111\/srt.12103","type":"journal-article","created":{"date-parts":[[2013,10,12]],"date-time":"2013-10-12T02:28:49Z","timestamp":1381544929000},"page":"177-181","source":"Crossref","is-referenced-by-count":7,"title":["Quantification of allergic and irritant patch test reactions using ImageJ"],"prefix":"10.1111","volume":"20","author":[{"given":"H.","family":"Ohshima","sequence":"first","affiliation":[{"name":"POLA Laboratories POLA Chemical Industries Inc Totsuka\u2010ku Yokohama Japan"},{"name":"Department of Dermatology, School of Medicine Toho University Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"Kinoshita","sequence":"additional","affiliation":[{"name":"POLA Laboratories POLA Chemical Industries Inc Totsuka\u2010ku Yokohama Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Futagawa","sequence":"additional","affiliation":[{"name":"POLA Laboratories POLA Chemical Industries Inc Totsuka\u2010ku Yokohama Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.","family":"Takiwaki","sequence":"additional","affiliation":[{"name":"Takiwaki Dermatology Clinic Wakayama Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K.","family":"Washizaki","sequence":"additional","affiliation":[{"name":"Department of Dermatology, School of Medicine Toho University Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Ishiko","sequence":"additional","affiliation":[{"name":"Department of Dermatology, School of 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