{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T20:49:03Z","timestamp":1791233343346,"version":"4.1.0"},"reference-count":34,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2013,8,19]],"date-time":"2013-08-19T00:00:00Z","timestamp":1376870400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Lasers Surg Med"],"published-print":{"date-parts":[[2013,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Field cancerization denotes subclinical abnormalities in a tissue chronically exposed to UV radiation. These abnormalities can be found surrounding the clinically visible actinic keratoses.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>The aim of this study was to test the feasibility of a hyperspectral imaging system in the detection of multiple clinical and subclinical AKs for early treatment of the affected areas.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Altogether 52 clinical AKs in 12 patients were included in this study. In six patients digital photos were taken of the naive AKs, and again after methylaminolevulinate(MAL)\u2010fluorescence diagnosis which was used to teach HIS to find subclinical lesions. After 2\u20133 days when the MAL had vanished, the hyperspectral images were taken. Biopsies were taken from clinical AKs, healthy\u2010looking skin and several suspected subclinical AKs. In the other six patients digital and hyperspectral images were taken of the naive AKs followed by one biopsy per patient.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>HIS detected all clinically visible 52 AKs and numerous subclinical lesions. The histopathology of the 33 biopsied lesions were concordant with the HIS results showing either AK (<jats:italic>n<\/jats:italic>\u2009=\u200928) or photodamage (<jats:italic>n<\/jats:italic>\u2009=\u20095). Of the 28 histopathologically confirmed AKs, 16 were subclinical. A specific diffuse reflectance spectrum of an AK and healthy skin was defined.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The hyperspectral imaging system offers a new, non\u2010invasive method for early detection of field cancerization. Lasers Surg. Med. 45:410\u2013417, 2013. \u00a9 2013 Wiley Periodicals, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/lsm.22160","type":"journal-article","created":{"date-parts":[[2013,8,19]],"date-time":"2013-08-19T15:27:39Z","timestamp":1376926059000},"page":"410-417","source":"Crossref","is-referenced-by-count":37,"title":["Detecting field cancerization using a hyperspectral imaging system"],"prefix":"10.1002","volume":"45","author":[{"given":"Noora","family":"Neittaanm\u00e4ki\u2010Perttu","sequence":"first","affiliation":[{"name":"Department of Dermatology and Allergology P\u00e4ij\u00e4t\u2010H\u00e4me Social and Health Care Group Lahti Finland"},{"name":"Department of Mathematical Information Technology University of Jyv\u00e4skyl\u00e4 Jyv\u00e4skyl\u00e4 Finland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mari","family":"Gr\u00f6nroos","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Allergology P\u00e4ij\u00e4t\u2010H\u00e4me Social and 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