Why 3-D Mammo?
Why is cancer screening by mammography so crucial?
Every year, over 200,000 women in the U.S. are diagnosed with breast cancer, meaning that one in every eight women are likely to develop this cancer at some point in their lifetime. For a cancer that is so invasive, prognosis is highly dependent upon the stage of the disease.
This is where screenings and their signiﬁcance truly come into play. Because 79% of new cases of breast cancer and 88% of breast cancer deaths occur among women around 50 years of age and older, the American Cancer Society recommends that all women 40 years of age and older attain routine self-examinations and mammography screenings for breast cancer.
Combined results from randomized screening trials suggest that mammography reduces the risk of dying from breast cancer by 15% to 20% and is the most eﬀective screening tool used in regards to detecting early stages of the cancer.
How does this relate to women in Johnston County?
Breast cancer is the top diagnosed cancer at Johnston Health and 84% of Johnston Health’s patients are from Johnston County. Nearly 75% of the women diagnosed were between the ages of 50-89 years old. As of 2014, the Johnston County population stood at 181,423, an approximate 3,500 resident increase in the matter of just a year and a 12,500 resident increase over four years. Almost 65% of the population of Johnston County is female.
Are 3-D mammograms more effective than conventional digital mammograms?
The difference in the two types of images is obvious, even to the untrained eye. Multiple studies have proven that 3-D mammography along with conventional mammograms, detects more breast cancers and leads to fewer call-backs and false-positives, compared to just the conventional 2-D mammography alone. In fact, a study presented back in December of 2103, at the Radiological Society of North America Annual Meeting found, when comparing both 2-D and 3-D mammogram recall and detection rates, that 3-D mammograms had 15.6% fewer false-positives and revealed 22% more cancers, opposed to the conventional mammogram itself.
High breast tissue density has also been shown to be a strong, independent risk factor in the development of cancer, and the conventional mammogram has simply not yet been proven capable enough to provide the kind of image deemed necessary in seeing clearly through dense breast tissue.