Steven L. Jacques Ph.D., Ken Lee M.D., Jessica Roman Oregon Medical Laser Center, Providence St. Vincent Medical Center, Portland, Oregon USA Oregon Health Sciences University, Portland, Oregon USA Department of Electrical and Computer Engineering, Oregon Graduate Institute, Portland, Oregon, USA.

Scattering of Polarized Light by Biological Tissues

WEBposter presented at

Saratov Conference October 5-8, 1999. Saratov, Russia. | Jacques Saratov page

Outline of WEBposter:

The basic idea

• Cancer perturbs skin homogeneity
• % reflectance from skin layers

Prototype polarization camera and images of human skin

• Schematic diagram
• Definition of POLARIZATION image
• Photo of prototype camera
• IMAGE: Freckle
• IMAGE: Benign pigmented nevus
• IMAGE: Tattoo
• IMAGE: Malignant basal cell carcinoma
• IMAGE: Sclerosing basal cell carcinoma
• CONCLUSIONS

Basic experiments on propagation of polarized light

• Experimental apparatus
• Modeling the randomization of polarization
• Randomization of polarization orientation
• Generic behavior of experimental data
• Example data: Polystyrene microspheres
• Example data: Chicken muscle
• Diffusivity X [rad2/mfp]
• CONCLUSIONS