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Related Experiment Videos

Millimeter wavelength thermographic scanner

R K Cacak, D E Winans, J Edrich

    Medical Physics
    |July 1, 1981
    PubMed
    Summary
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    New millimeter-wave thermography instruments detect subtle temperature changes deep within tissues. This breakthrough offers a noninvasive method for early breast cancer detection, surpassing conventional infrared methods.

    Area of Science:

    • Biomedical Engineering
    • Medical Imaging
    • Electromagnetics

    Background:

    • Conventional infrared thermography is limited to surface temperature measurements.
    • Existing methods lack the ability to detect subsurface thermal anomalies.
    • Early detection of breast cancer is crucial for effective treatment.

    Purpose of the Study:

    • To design and test novel thermographic instruments for deep tissue thermal imaging.
    • To evaluate the potential of millimeter-wave thermography for noninvasive breast cancer detection.
    • To overcome the limitations of conventional infrared thermography.

    Main Methods:

    • Development of two new thermographic instruments sensitive to millimeter-wave radiation.
    • Testing instrument sensitivity to apparent thermal variations at tissue depths of several millimeters.

    Related Experiment Videos

  • Comparison of millimeter-wave thermography with conventional infrared thermography.

    • Main Results:

    • The new instruments successfully detected thermal variations at depths of several millimeters.
    • Millimeter-wave instruments are sensitive to temperature changes as small as a fraction of a degree.
    • These instruments offer significantly greater penetration depth than infrared thermography.

    Conclusions:

    • Millimeter-wave thermography provides a noninvasive approach for subsurface thermal imaging.
    • The developed instruments show promise for the accurate detection of breast abnormalities.
    • This technology could significantly advance early, noninvasive breast cancer diagnosis.