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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.
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.
Abstract:
(1) Background: The authors developed a new non-invasive dermatological infrared macroimaging analysis technique (MacroIR) that evaluates microvascular, inflammatory, and metabolic changes that may be dermoscopy complimentary, by analyzing different skin and mucosal lesions in a combined way-naked eye, polarized light dermatoscopy (PLD), and MacroIR-and comparing results; (2) Methods: ten cases were evaluated using a smartphone coupled with a dermatoscope and a macro lens integrated far-infrared transducer into specific software to capture and organize high-resolution images in different electromagnetic spectra, and then analyzed by a dermatologist; (3) Results: It was possible to identify and compare structures found in two dermoscopic forms. Visual anatomical changes were correlated with MacroIR and aided skin surface dermatological analysis, presenting studied area microvascular, inflammatory, and metabolic data. All MacroIR images correlated with PLD, naked eye examination, and histopathological findings; (4) Conclusion: MacroIR and clinic dermatologist concordance rates were comparable for all dermatological conditions in this study. MacroIR imaging is a promising method that can improve dermatological diseases diagnosis. The observations are preliminary and require further evaluation in larger studies.
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