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Terahertz Imaging and Characterization Protocol for Freshly Excised Breast Cancer Tumors
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A promising diagnostic method: Terahertz pulsed imaging and spectroscopy.

Yiwen Sun1, Ming Yiu Sy, Yi-Xiang J Wang

  • 1Yiwen Sun, Ming Yiu Sy, Yuan-ting Zhang, Department of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong, China.

World Journal of Radiology
|April 23, 2011
PubMed
Summary

Terahertz imaging offers a safe, water-sensitive method for medical diagnostics. Its unique spectral properties provide complementary data for tissue characterization and skin imaging applications.

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Area of Science:

  • Physics
  • Biomedical Engineering
  • Spectroscopy

Background:

  • The terahertz (THz) band, situated between microwave and infrared frequencies, offers unique properties for biological applications.
  • THz radiation possesses low photon energy, posing no ionization hazard to biological tissues.
  • Its strong attenuation by water and sensitivity to water content are key characteristics.

Purpose of the Study:

  • To introduce terahertz technology and review recent advances in THz imaging and spectroscopy.
  • To discuss the potential of THz imaging as a complementary tool in medical diagnostics.
  • To highlight applications in molecular spectroscopy, tissue characterization, and skin imaging.

Main Methods:

  • Review of terahertz imaging and spectroscopy techniques.
Keywords:
BiomedicalImagingSpectroscopyTerahertz

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  • Analysis of unique absorption spectra of biological materials in the THz region.
  • Discussion of applications in medical diagnostics.

    • Main Results:

    • Terahertz imaging provides complementary information to existing medical imaging modalities.
    • Unique absorption spectra are observed in biological materials due to intermolecular vibrations.
    • Increasing interest and reported spectra in biologically related THz applications.

    Conclusions:

    • Terahertz imaging is an attractive modality for medical applications due to its safety and sensitivity to water content.
    • The unique spectral fingerprints in the terahertz range enable detailed molecular and tissue characterization.
    • Advancements in terahertz technology are expanding its utility in biomedical research and clinical diagnostics.