Terahertz imaging diagnostics of the cancer tissues with chemometrics technique

The terahertz (THz) spectroscopic images of the paraffin embedded cancer tissues have been measured by a THz time domain spectrometer. Though the potential of the THz spectrum to the cancer diagnostics have been reported, it is sometimes difficult to distinguish normal and cancer parts due to the variety of the tissues. Thus, the systematic analysis should be introduced to clarify their difference. In this paper, the chemometrics technique has been applied to the analysis of the THz spectroscopic images of plural tumor samples. The capability of the method was discussed.