Millimeter wavelength thermographic scanner

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.
• 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.