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Tchvialeva L, Phillips J, Louie DC, Zeng H, Lui H, Lee TK. Micro-relief characterization of benign and malignant skin lesions by polarization speckle analysis in vivo. Photodermatol Photoimmunol Photomed 2023; 39:449-456. [PMID: 37138413 DOI: 10.1111/phpp.12876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 04/05/2023] [Accepted: 04/13/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND/PURPOSE A recent direction in skin disease classification is to develop quantitative diagnostic techniques. Skin relief, colloquially known as roughness, is an important clinical feature. The aim of this study is to demonstrate a novel polarization speckle technique to quantitatively measure roughness on skin lesions in vivo. We then calculate the average roughness of different types of skin lesions to determine the extent to which polarization speckle roughness measurements can be used to identify skin cancer. METHODS The experimental conditions were set to target the fine relief structure on the order of ten microns within a small field of view of 3 mm. The device was tested in a clinical study on patients with malignant and benign skin lesions that resemble cancer. The cancer group includes 37 malignant melanomas (MM), 43 basal cell carcinomas (BCC), and 26 squamous cell carcinomas (SCC), all categories confirmed by gold standard biopsy. The benign group includes 109 seborrheic keratoses (SK), 79 nevi, and 11 actinic keratoses (AK). Normal skin roughness was obtained for the same patients (301 different body sites proximal to the lesion). RESULTS The average root mean squared (rms) roughness ± standard error of the mean for MM and nevus was equal to 19 ± 5 μm and 21 ± 3 μm, respectively. Normal skin has rms roughness of 31 ± 3 μm, other lesions have roughness of 35 ± 10 μm (AK), 35 ± 7 μm (SCC), 31 ± 4 μm (SK), and 30 ± 5 μm (BCC). CONCLUSION An independent-samples Kruskal-Wallis test indicates that MM and nevus can be separated from each of the tested types of lesions, except each other. These results quantify clinical knowledge of lesion roughness and could be useful for optical cancer detection.
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Affiliation(s)
- Lioudmila Tchvialeva
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada
- Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
- Department of Cancer Control Research, BC Cancer, Vancouver, British Columbia, Canada
| | - Jamie Phillips
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada
- Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
- Department of Cancer Control Research, BC Cancer, Vancouver, British Columbia, Canada
| | - Daniel C Louie
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada
- Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
- Department of Cancer Control Research, BC Cancer, Vancouver, British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
| | - Haishan Zeng
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada
- Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
- Department of Integrative Oncology, Imaging Unit, BC Cancer, Vancouver, British Columbia, Canada
| | - Harvey Lui
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada
- Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
- Department of Integrative Oncology, Imaging Unit, BC Cancer, Vancouver, British Columbia, Canada
| | - Tim K Lee
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada
- Photomedicine Institute, Vancouver Coastal Health Research Institute, Vancouver, British Columbia, Canada
- Department of Cancer Control Research, BC Cancer, Vancouver, British Columbia, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, British Columbia, Canada
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