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Near infrared and skin impedance spectroscopy - a possible support in the diagnostic process of skin tumours in primary health care.
Region Östergötland, Local Health Care Services in Central Östergötland, Primary Health Care in Central County. Linköping University, Faculty of Medicine and Health Sciences.
Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Local Health Care Services in Central Östergötland, Primary Health Care in Central County. Region Östergötland, Local Health Care Services in West Östergötland, Research & Development Unit in Local Health Care.
Computational Solutions, Umeå, Sweden.
Computational Solutions, Umeå, Sweden.
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2015 (English)In: Skin research and technology, ISSN 0909-752X, E-ISSN 1600-0846, Vol. 21, no 4, 493-499 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND/PURPOSE: The global incidence of skin cancer has increased drastically in recent decades, especially in Australia and Northern Europe. Early detection is crucial for good prognosis and high survival rates. In general, primary care physicians have considerably lower sensitivity and specificity rates for detection of skin cancer, compared to dermatologists. A probable main reason for this is that current diagnostic tools are subjective in nature, and therefore diagnostic skills highly depend on experience. Illustratively, in Sweden, approximately 155 500 benign skin lesions are excised unnecessarily every year. An objective instrument, added to the clinical examination, might improve the diagnostic accuracy, and thus promote earlier detection of malignant skin tumours, as well as reduce medical costs associated with unnecessary biopsies and excisions. The general aim of this study was to investigate the usefulness of the combination of near infrared (NIR) and skin impedance spectroscopy as a supportive tool in the diagnosis and evaluation of skin tumours in primary health care.

METHODS: Near infrared and skin impedance data were collected by performing measurements on suspect malignant, premalignant and benign tumours in the skin of patients seeking primary health care for skin tumour evaluation. The obtained data were analysed using multivariate analysis and compared with the diagnosis received by the conventional diagnostic process.

RESULTS: The observed sensitivity and specificity rates were both 100%, when discriminating malignant and premalignant skin tumours from benign skin tumours, and the observed sensitivity and specificity for separating malignant skin tumours from premalignant and benign skin tumours were also 100%, respectively.

CONCLUSION: The results of this study indicate that the NIR and skin impedance spectroscopy may be a useful supportive tool for the general practitioner in the diagnosis and evaluation of skin tumours in primary health care, as a complement to the visual assessment.

Place, publisher, year, edition, pages
2015. Vol. 21, no 4, 493-499 p.
National Category
Family Medicine Dermatology and Venereal Diseases
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URN: urn:nbn:se:liu:diva-115794DOI: 10.1111/srt.12219ISI: 000362679600014PubMedID: 25773339OAI: oai:DiVA.org:liu-115794DiVA: diva2:796676
Available from: 2015-03-19 Created: 2015-03-19 Last updated: 2017-12-04

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Falk, Magnus

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