Mammography is the process of using low-dose x-ray system to examine breasts. A mammogram, is used to aid in the early detection and diagnosis of breast diseases in women typically through detection of characteristic masses and/or microcalcifications. Like all x-rays, mammograms use doses of ionizing radiation to create images. Radiologists then analyze the image for any abnormal findings
A mammogram is done to help screen for or
detect breast cancer. Many small tumors can be seen on a
mammogram before they can be felt by a woman or her health
professional. Mammograms do not prevent breast cancer or
reduce a woman’s risk of developing cancer. However, regular
mammograms can reduce a woman’s risk of dying from breast
cancer by detecting it in its early stages.
Digital mammography, or also known as full-field digital mammography (FFDM), is a mammography system in which the x-ray film is replaced by solid-state detectors that convert x-rays into electrical signals. These detectors are similar to those found in digital cameras. The electrical signals are used to produce images of the breast that can be seen on a computer screen or printed on special film similar to conventional mammograms. From the patient's point of view, having a digital mammogram is essentially the same as having a conventional film screen mammogram.
Computer-aided detection (CAD) systems use a digitized mammographic image that undergoes software analysis to look for areas of calcifications, densities or masses that may represent early cancer. There are many false positive findings on this technique, however, the information when combined with a breast imaging specialists knowledge improves the detection of small cancers. Screening Mammography
Mammograms are a well tested exam that aid in the early detection of breast cancers because it can show changes in the breast up to two years before a patient or physician can feel them. Current guidelines from the U.S. Department of Health and Human Services (HHS), the American Cancer Society (ACS), the American Medical Association (AMA) and the American College of Radiology (ACR) recommend screening mammography every year for women, beginning at age 40. Multiple large trials have shown the benefit to annual mammograms beginning at age 40.
Diagnostic Mammography
Diagnostic mammography is used to evaluate a patient with abnormal clinical finding, such as a breast lump or lumps—that have been found by the woman or her doctor. Diagnostic mammography may also be done after an abnormal screening mammography in order to evaluate the area of concern on the screening exam.
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