Dynamic thermal imaging on actinic keratosis patients: A preliminary study

Yoo Sang Baek, Jaeyoung Kim, Jin Young Song, Jiehyun Jeon, Chil Hwan Oh

Research output: Contribution to journalArticle

Abstract

Background: Diagnosis of actinic keratosis (AK) based only on clinical findings can be misleading, and histopathological diagnosis results in scars. Dynamic thermal imaging is a potential non-invasive tool for the diagnosis of AK. This imaging technique quantifies the infrared (IR) radiation emitted by a subject after exposure to external thermal stimuli, such as heat or cold. Methods: Twenty-six histopathologically confirmed AK patients participated in the study. We compared the dynamic thermal images of AK lesions and normal skin (control sites). Temperature changes were plotted as a thermal response graph. After fitting exponential curves to the thermal response graph, the curve was converted to a logarithmic form. Results: Comparison of the early thermal response graphs of lesions and control sites showed faster thermal recovery of AK lesions. There was a significant difference in the gradient component of the calculated logarithmic equation between the AK lesions and control sites (P < 0.001). Conclusion: Dynamic thermal imaging can be used as an auxiliary diagnostic tool for AK.

Original languageEnglish
JournalSkin Research and Technology
DOIs
Publication statusAccepted/In press - 2018 Jan 1

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Actinic Keratosis
Hot Temperature
Cicatrix
Radiation
Skin

Keywords

  • actinic keratosis
  • dynamic thermal imaging
  • solar keratosis
  • thermal imaging
  • thermography

ASJC Scopus subject areas

  • Dermatology

Cite this

Dynamic thermal imaging on actinic keratosis patients : A preliminary study. / Baek, Yoo Sang; Kim, Jaeyoung; Song, Jin Young; Jeon, Jiehyun; Oh, Chil Hwan.

In: Skin Research and Technology, 01.01.2018.

Research output: Contribution to journalArticle

Baek, Yoo Sang ; Kim, Jaeyoung ; Song, Jin Young ; Jeon, Jiehyun ; Oh, Chil Hwan. / Dynamic thermal imaging on actinic keratosis patients : A preliminary study. In: Skin Research and Technology. 2018.
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abstract = "Background: Diagnosis of actinic keratosis (AK) based only on clinical findings can be misleading, and histopathological diagnosis results in scars. Dynamic thermal imaging is a potential non-invasive tool for the diagnosis of AK. This imaging technique quantifies the infrared (IR) radiation emitted by a subject after exposure to external thermal stimuli, such as heat or cold. Methods: Twenty-six histopathologically confirmed AK patients participated in the study. We compared the dynamic thermal images of AK lesions and normal skin (control sites). Temperature changes were plotted as a thermal response graph. After fitting exponential curves to the thermal response graph, the curve was converted to a logarithmic form. Results: Comparison of the early thermal response graphs of lesions and control sites showed faster thermal recovery of AK lesions. There was a significant difference in the gradient component of the calculated logarithmic equation between the AK lesions and control sites (P < 0.001). Conclusion: Dynamic thermal imaging can be used as an auxiliary diagnostic tool for AK.",
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