News tagged with mammography
One in eight women will be diagnosed with breast cancer during her lifetime. The earlier cancer is detected, the better the chance of successful treatment and long-term survival. However, early cancer diagnosis is still challenging ...
Cancer Apr 05, 2012 | 5 / 5 (2) | 0 |
New Harvard School of Public Health (HSPH) research suggests that routine mammography screeninglong viewed as an essential tool in detecting early breast cancersmay in fact lead to a significant amount of overdiagnosis ...
Cancer Apr 02, 2012 | not rated yet | 1 |
Mammography done yearly or every two years to detect new or recurrent tumors after surgery appears to prolong the lives of breast cancer survivors, according to a large new evidence review.
Cancer Sep 28, 2011 | 5 / 5 (1) | 0 |
Breast cancer screening has not played a direct part in the reductions of breast cancer mortality in recent years, says a new study published on bmj.com today.
Cancer Jul 29, 2011 | not rated yet | 0 |
Three-dimensional breast screens (mammograms) could offer substantial improvements in cancer detection and reducing false positives when used in conjunction with traditional two-dimensional mammograms, according to the results ...
Cancer Apr 24, 2013 | 5 / 5 (1) | 0
Researchers at Moffitt Cancer Center predict that advancements in breast cancer screening will need a personalized touch because mammography is not a "one strategy fits all" technology.
Cancer Apr 05, 2013 | not rated yet | 0
A study that compared the benefits and harms of the frequency of screening mammography to age, breast density and postmenopausal use of hormone therapy (HT) suggests that woman ages 50 to 74 years who undergo biennial screenings ...
Cancer Mar 18, 2013 | not rated yet | 0
Among older women, getting a mammogram every two years was just as beneficial as getting a mammogram annually, and led to significantly fewer false positive results, according to a study led by UC San Francisco.
Cancer Feb 05, 2013 | not rated yet | 0
(HealthDay)—Compared with currently used computer-aided detection (CAD) prompts, use of an interactive CAD system, in which CAD marks and their associated suspiciousness scores remain hidden unless queried ...
Cancer Jan 21, 2013 | not rated yet | 0
(HealthDay)—Using a combination of tomosynthesis, which produces a three-dimensional reconstruction of the breast, with digital mammography increases radiologists' diagnostic accuracy and significantly ...
Cancer Jan 04, 2013 | not rated yet | 0
(HealthDay)—The impact of different screening modalities on cancer risk has been quantified in two studies presented at the annual meeting of the Radiological Society of North America, held from Nov. 25 ...
Cancer Nov 27, 2012 | not rated yet | 0
Regular mammography screening can help narrow the breast cancer gap between black and white women, according to a retrospective study published in Breast Cancer Research and Treatment in August.
Cancer Sep 25, 2012 | not rated yet | 0
Preventive mammography rates in women in their 40s have dropped nearly 6 percent nationwide since the U.S. Preventive Services Task Force (USPSTF) recommended against routine mammograms for women in this age group, a Mayo ...
Cancer Jun 26, 2012 | not rated yet | 0
(HealthDay) -- The No Touch Breast Scan (NTBS), an infrared thermography modality, is not as reliable as mammography for detecting breast cancer, according to a study presented at the annual meeting of the ...
Cancer May 07, 2012 | not rated yet | 0
False-positive mammograms could be an indicator of underlying pathology that could result in breast cancer, according to a study published April 5 in the Journal of the National Cancer Institute.
Cancer Apr 05, 2012 | not rated yet | 0
Mammography is the process of using low-energy-X-rays (usually around 30 kVp) to examine the human breast and is used as a diagnostic and a screening tool. The goal of mammography is the early detection of breast cancer, typically through detection of characteristic masses and/or microcalcifications. Most doctors believe that mammography reduces deaths from breast cancer, although a minority do not.
In many countries routine mammography of older women is encouraged as a screening method to diagnose early breast cancer. In 2009, the U.S. Preventive Services Task Force (USPSTF) recommended that women with no risk factors have screening mammographies every 2 years between age 50 and 74. They found that the information was insufficient to recommend for or against screening between age 40 and 49 or above age 74. Altogether clinical trials have found a relative reduction in breast cancer mortality of 20%. Some doctors believe that mammographies do not reduce deaths from breast cancer, or at least that the evidence does not demonstrate it.
Like all x-rays, mammograms use doses of ionizing radiation to create images. Radiologists then analyze the image for any abnormal findings. It is normal to use lower energy X-rays (typically Mo-K) than those used for radiography of bones.
At this time, mammography along with physical breast examination is the modality of choice for screening for early breast cancer. Ultrasound, ductography, positron emission mammography (PEM), and magnetic resonance imaging are adjuncts to mammography. Ultrasound is typically used for further evaluation of masses found on mammography or palpable masses not seen on mammograms. Ductograms are still used in some institutions for evaluation of bloody nipple discharge when the mammogram is non-diagnostic. MRI can be useful for further evaluation of questionable findings as well as for screening pre-surgical evaluation in patients with known breast cancer to detect any additional lesions that might change the surgical approach, for instance from breast-conserving lumpectomy to mastectomy. New procedures, not yet approved for use in the general public, including breast tomosynthesis may offer benefits in years to come.
Breast self-examination (BSE) was once promoted as a means of finding cancer at a more curable stage, however, it has been shown to be ineffective, and is no longer routinely recommended by health authorities for general use. Awareness of breast health and familiarity with one's own body is typically promoted instead of self-exams.
Mammography has a false-negative (missed cancer) rate of at least 10 percent. This is partly due to dense tissues obscuring the cancer and the fact that the appearance of cancer on mammograms has a large overlap with the appearance of normal tissues.
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This text uses material from Wikipedia and is available under the GNU Free Documentation License.