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 journalArticlepeer-review

1 Citation (Scopus)


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
Pages (from-to)211-216
Number of pages6
JournalSkin Research and Technology
Issue number2
Publication statusPublished - 2019 Mar


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

ASJC Scopus subject areas

  • Dermatology


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