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Related Experiment Video

Updated: Dec 31, 2025

Quantitative Visualization and Detection of Skin Cancer Using Dynamic Thermal Imaging
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Millimeter-Wave Substrate Integrated Waveguide Probe for Skin Cancer Detection.

Giulia Mansutti, Ahmed Toaha Mobashsher, Konstanty Bialkowski

    IEEE Transactions on Bio-Medical Engineering
    |January 7, 2020
    PubMed
    Summary

    This study introduces a novel near-field probe for early skin cancer detection. Utilizing substrate integrated waveguide technology, the low-cost device offers high sensitivity for improved diagnostics.

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    Area of Science:

    • Electromagnetics and Applied Physics
    • Biomedical Engineering
    • Medical Imaging Technology

    Background:

    • Early-stage detection of skin cancer is crucial for effective treatment.
    • Conventional diagnostic methods may lack the sensitivity or accessibility for widespread screening.
    • Near-field electromagnetic probes offer potential for high-resolution, non-invasive tissue analysis.

    Purpose of the Study:

    • To develop and validate an efficient, low-cost near-field probe for early-stage skin cancer detection.
    • To investigate the use of substrate integrated waveguide (SIW) technology for probe fabrication.
    • To define and evaluate a new metric, 'detection depth', for assessing tumor visibility.

    Main Methods:

    • Design of a near-field probe with a tapered section for electric field concentration.
    • Utilization of substrate integrated waveguide (SIW) technology for fabrication on a high dielectric constant substrate (Rogers RO3210).
    • Operation at approximately 40 GHz for optimal skin penetration and minimal interaction with underlying tissues.
    • Development and application of a differential imaging algorithm for adaptability across different skin types.
    • Validation through electromagnetic simulations (CST Microwave Studio) and experimental measurements on an artificial skin phantom.

    Main Results:

    • The probe achieved a sharp electric field concentration at its tip.
    • SIW technology enabled easy and cost-effective fabrication.
    • The probe demonstrated good impedance matching with skin for direct contact application.
    • The developed differential imaging algorithm ensured consistent performance across various skin types and body regions.
    • The probe achieved a lateral sensitivity of 0.2 mm and a detection depth of 0.55 mm.

    Conclusions:

    • The developed near-field probe is an efficient and low-cost tool for early-stage skin cancer detection.
    • The probe's design, utilizing SIW technology and operating at 40 GHz, is suitable for practical, fast scanning of suspected skin regions.
    • The concept of 'detection depth' provides a more relevant metric for evaluating tumor detection capabilities compared to penetration depth.
    • The probe's performance was successfully validated through simulations and phantom measurements, indicating its potential for clinical application.