Interest in diaphanography for the early diagnosis of breast cancer is increasing, and a number of clinical trials are being conducted. However, little is known about the transmission of light through tissue, or the mechanism by which shadows of lesions are formed. In this work we are studying the scattering and absorption of infra-red light by homogeneous suspensions of red blood, sarcoma and leukemia cells, as well as both normal and pathological samples of human breast tissue.
"The Physical Basis Of Diaphanography", Proc. SPIE 0555, Medical Imaging and Instrumentation '85, (19 September 1985); doi: 10.1117/12.949483; https://doi.org/10.1117/12.949483