“…The similar composition between normal and malignant breast tissue [9–11] produces very low attenuation contrast, which presents a significant challenge for early cancer detection. Improving the image quality in conventional x-ray imaging can only be accomplished a few ways: lowering the x-ray energy to increase the amount of radiation absorbed by the tissue [9,11,12], and utilizing an anti-scatter grid between the object and detector to reduce the image degradation caused by scattered x-rays [9,13]. Both methods improve the signal-to-noise ratio, and thus the image quality, of the image; however, this is accomplished at the expense of an increased radiation dose to the patient.…”