Natalka Horeczko

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Mammograms are difficult to interpret, especially of cancers at their early stages. We analyze the effectiveness of our adaptive neighborhood contrast enhancement (ANCE) technique in increasing the sensitivity of breast cancer diagnosis. Seventy-eight screen-film mammograms of 21 difficult cases (14 benign and seven malignant), 222 screen-film mammograms of(More)
In 1990, a provincial screening program was inaugurated in Alberta, a Canadian province of 2.4 million people. The goal of the program is to decrease the number of deaths from breast cancer by 30% in women aged 50-69 years. In the first 18 months of program operations, efforts were concentrated on high levels of quality assurance in all areas of program(More)
BACKGROUND AND OBJECTIVES Studies have shown molecular, genetic and cellular changes in breast cancer during the menstrual cycle. Changes in proliferative and metastatic potential of breast cancer cells during menses could explain improved survival when tumors are surgically removed in the luteal phase. This study examined if timing of mammography/core(More)
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