Using terahertz pulsed imaging (TPI) to identify colonic pathology.

Terahertz pulsed imaging (TPI) is a non-ionizing and non-destructive technique. Image contrast has been seen between normal and diseased tissues in ex vivo measurements. In this study, terahertz images of excised colon tissue show contrast between regions of tumor and normal tissue. Averaged waveforms from within tumor and normal regions are different. A number of parameters from the data have been identified that show statistically significant differences (p<0.01) between data from tumor and normal regions.