Infrared Macrothermoscopy Patterns-A New Category of Dermoscopy

Flavio Leme Ferrari1, Marcos Leal Brioschi1, Carlos Dalmaso Neto1

  • 1Medical Thermology and Thermography Specialization, Sao Paulo University Medicine School Clinical Hospital, São Paulo 01246-903, SP, Brazil.

Journal of Imaging
|February 24, 2023
PubMed

Insights

A new infrared macroimaging (MacroIR) technique offers a non-invasive way to analyze skin lesions, complementing traditional methods like dermatoscopy. MacroIR shows promise for improving dermatological diagnoses by evaluating microvascular, inflammatory, and metabolic changes.

Area of Science:

  • Dermatology
  • Medical Imaging
  • Biophysics

Background:

  • A novel non-invasive dermatological infrared macroimaging analysis technique, MacroIR, was developed.
  • MacroIR analyzes microvascular, inflammatory, and metabolic changes in skin and mucosal lesions.
  • It complements traditional methods like naked eye examination and polarized light dermatoscopy (PLD).

Purpose of the Study:

  • To evaluate the efficacy of MacroIR in analyzing skin and mucosal lesions.
  • To compare MacroIR findings with naked eye, PLD, and histopathological results.
  • To assess the diagnostic potential of MacroIR in dermatology.

Main Methods:

  • Ten cases were evaluated using a smartphone-integrated dermatoscope with a far-infrared transducer and specialized software.
  • High-resolution images were captured across different electromagnetic spectra.
  • Images were analyzed by a dermatologist, correlating visual, dermoscopic, and MacroIR data.

Main Results:

  • MacroIR successfully identified and compared structures with dermoscopic forms.
  • Visual anatomical changes correlated with MacroIR data, providing microvascular, inflammatory, and metabolic information.
  • MacroIR images showed strong correlation with PLD, naked eye examination, and histopathology.

Conclusions:

  • MacroIR imaging demonstrated comparable concordance rates with clinical dermatologists as traditional methods.
  • MacroIR is a promising tool for enhancing dermatological disease diagnosis.
  • Preliminary observations suggest MacroIR's potential, warranting further large-scale studies.

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