Doruntina Hoxha (Author), Aljoša Krt (Author), Jošt Stergar (Author), Tadej Tomanič (Author), Aleš Grošelj (Author), Ivan Štajduhar (Author), Gregor Serša (Author), Matija Milanič (Author)

Abstract

Background: Skin lesions associated with head and neck carcinomas present a diagnostic challenge. Conventional imaging methods, such as dermoscopy and RGB imaging, often face limitations in providing detailed information about skin lesions and accurately differentiating tumor tissue from healthy skin. Methods: This study developed a novel approach utilizing tissue index images derived from hyperspectral imaging (HSI) in combination with machine learning (ML) classifiers to enhance lesion classification. The primary aim was to identify essential features for categorizing tumor, peritumor, and healthy skin regions using both RGB and hyperspectral data. Detailed skin lesion images of 16 patients, comprising 24 lesions, were acquired using HSI. The first- and second-order statistics radiomic features were extracted from both the tissue index images and RGB images, with the minimum redundancy–maximum relevance (mRMR) algorithm used to select the most relevant ones that played an important role in improving classification accuracy and offering insights into the complexities of skin lesion morphology. We assessed the classification accuracy across three scenarios: using only RGB images (Scenario I), only tissue index images (Scenario II), and their combination (Scenario III). Results: The results indicated an accuracy of 87.73% for RGB images alone, which improved to 91.75% for tissue index images. The area under the curve (AUC) for lesion classifications reached 0.85 with RGB images and over 0.94 with tissue index images. Conclusions: These findings underscore the potential of utilizing HSI-derived tissue index images as a method for the non-invasive characterization of tissues and tumor analysis.

Keywords

medicinska fizika;hiperspektralno slikanje;tumorji;strojno učenje;medical physics;hyperspectral imaging;tissue index images;tumors;machine learning;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FMF - Faculty of Mathematics and Physics
UDC: 616-073:53
COBISS: 235622147 Link will open in a new window
ISSN: 2072-6694
Views: 16
Downloads: 2
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Other data

Secondary language: Slovenian
Secondary keywords: medicinska fizika;hiperspektralno slikanje;tumorji;strojno učenje;
Type (COBISS): Article
Pages: 27 str.
Volume: ǂVol. ǂ17
Issue: ǂiss. ǂ10, art. no. 1622
Chronology: May 2025
DOI: 10.3390/cancers17101622
ID: 26380084