Optical Tomography in Prostate Cancer

Diffuse optical tomography (DOT) is a novel imaging modality that uses low-intensity, near-infrared light to characterize tissue. As light of a specific wavelength travels through tissue, it is absorbed and scattered by different chromophores and cellular structures. Using four wavelengths of light allows the detection of four chromophores: oxyhemoglobin, deoxyhemoglobin, water and fat.