Breast Study to Learn More About the Application of Optical Transillumination Measurements to Assess Breast Cancer Risk and to Potentially Detect the Presence of Breast Cancer.

Breast Cancer

Breast Cancer Risk, Optical Transillumination Spectroscopy, Transillumination Breast Spectroscopy

This study aims to evaluate if a light based technique, called Transillumination Breast Spectroscopy (TIBS), can be used to construct a non-invasive breast cancer risk predictor which provides a better odds ratio than mammographic parenchymal density.

In a previous cross sectional study in a group of women without breast cancer and with varying degrees of parenchymal density patterns, a strong association was demonstrated between Transillumination Breast Spectroscopy (TIBS) and x-ray derived mammographic density. From this, we expect that TIBS should also provide a comparable odds ratio (4-6) as mammographic density for breast cancer risk shown in other independent epidemiological studies. It is possible that TIBS may provide complementary information and a higher odds ratio if compared to the incidence of breast cancer. In contrast to mammography derived parenchymal density pattern, no historical TIBS data is available for a retrospective analysis and hence a cross sectional study within a group of screened women is proposed. We hypothesize that TIBS provides physical information about the breast tissue which can be used to construct a breast cancer risk predictor with an odd ratio \> 6.

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Canada