Improving image quality in diffuse optical tomography

Diffuse optical tomography (DOT) modality uses diffusion equation solution of low power laser distribution in the imaging tissue. DOT method has three main running mode and geometric subbranches. Run modes are: Continuous Wave (CW), Time Resolved (TR) Frequency Domain (FD) modes. These run might have transmission-through, back-reflected or ring geometry depend on source detector placements tissue surface. In this work, we tested our novel frequency-domain simulation model. Our novelty is: selecting a great number multi-frequency data wide frequency spectrum which was not before literature. Most literature works consist narrow band with limited frequencies such as maximum 12 multi-frequency-data cover from 100 up to 700 MHz. compared reconstructed inclusion images generated by 500 versus 20 generally used FD studies. We observed that is superior traditionally narrow-band based image localization errors. Since most homogenous consists fat tissue, selected background absorption coefficient µa = 0.2 cm?1 scattering $${\upmu }$$ s 80 for 800 nm wavelength. Three-dimensional cubic media 75-mm grid sizes each direction. Two different scenarios were tested. first scenario, one 0.7 put inside three-dimensional at 27 mm depth. second scenario embedded 48 depth location. Inclusions are they 6 xyz length