News tagged with mammograms
Visual nudge improves accuracy of mammogram readings
In 2011 -- to the consternation of women everywhere -- a systematic review of randomized clinical trials showed that routine mammography was of little value to younger women at average or low risk of breast ...
Technology / Computer Sciences
Jan 26, 2012 |
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Boston lawsuit claims DES-breast cancer link
(AP) -- Arline MacCormack first heard about DES from her mother when she was 17. Three decades later, MacCormack believes that the drug her mother took to prevent miscarriages caused her to develop breast ...
Jan 08, 2012 |
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Preventive care: It's free, except when it's not
(AP) -- Bill Dunphy thought his colonoscopy would be free.
Dec 28, 2011 |
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Coloradans can make money by losing weight
(AP) -- Insurance company Kaiser Permanente Colorado is offering cash to Coloradans to lose weight and keep it off.
Dec 28, 2011 |
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France to pay for removal of risky breast implants
France took a costly and unprecedented leap Friday in offering to pay for 30,000 women to have their breast implants removed because of mounting fears the products could rupture and leak cheap, industrial-grade ...
Dec 24, 2011 |
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UK researchers present findings from Kentucky breast cancer patients with disease relapse
The University of Kentucky Markey Cancer Center breast oncologist Dr. Suleiman Massarweh and his research team presented findings from their studies on relapse of breast cancer at the San Antonio Breast Cancer Symposium this ...
Dec 23, 2011 |
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Mammogram rates lower for Mexican women in U.S.
Mexican women in the United States are less likely to get mammograms than white women, black women and other Latinas, according to a new study in the journal Cancer Epidemiology, Biomarkers & Prevention.
Dec 21, 2011 |
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Breast cancers at lower-risk detected with widespread use of mammograms
As a woman ages, her chances of being diagnosed with a lower-risk breast tumor increase, according to a novel study led by UCSF which found that for women over 50, a substantial number of cancers detected by mammograms have ...
Dec 19, 2011 |
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Breast cancer patients face increasing number of imaging visits before surgery
Breast cancer patients frequently undergo imaging like mammograms or ultrasounds between their first breast cancer-related doctor visit and surgery to remove the tumor. Evaluations of these scans help physicians understand ...
Dec 09, 2011 |
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Depression and anxiety not linked to delayed resolution of abnormal mammograms, Pap tests
In what is believed to be the first study of its kind to examine the relationship between pre-existing depression (with and without anxiety) and the amount of time to diagnostically resolve an abnormal mammogram and/or Pap ...
Nov 22, 2011 |
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Doctor tells FDA to change rules; says mammogram won't spot cancer in some
A woman's mammography results should tell her if she has dense breasts, so that she'll know the test may miss a breast cancer diagnosis, a Ridgewood, N.J., radiologist told a federal advisory panel on mammography Friday.
Nov 07, 2011 |
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Hit reset on cancer screening: 'Tests not perfect'
It turns out that catching cancer early isn't always as important as we thought.
Nov 07, 2011 |
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The role of fat in assessing breast cancer risk
It is known that a high proportion of dense breast tissue, as seen with a mammogram, is associated with a high risk of breast cancer. But the role of non-dense fat tissue in the breast is less clear. New research published ...
Oct 26, 2011 |
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Singling out the real breast cancer among the lumps
(Medical Xpress) -- Early detection of breast cancer saves thousands of lives each year. But screening for breast cancer also produces false alarms, which can cause undue stress and costly medical bills. Now, ...
Oct 25, 2011 |
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Annual cancer screening tests urged less and less
Annual cancer tests are becoming a thing of the past. New guidelines out Wednesday for cervical cancer screening have experts at odds over some things, but they are united in the view that the common practice of getting a ...
Oct 19, 2011 |
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Mammography
Mammography is the process of using low-dose amplitude-X-rays (usually around 0.7 mSv) to examine the human breast and is used as a diagnostic as well as a screening tool. The goal of mammography is the early detection of breast cancer, typically through detection of characteristic masses and/or microcalcifications. Mammography is believed to reduce mortality from breast cancer. No other imaging technique has been shown to reduce risk, but breast self-examination (BSE) and physician examination are considered essential parts of regular breast care.
In many countries routine mammography of older women is encouraged as a screening method to diagnose early breast cancer. The United States Preventive Services Task Force recommends screening mammography, with or without clinical breast examination, every 1-2 years for women aged 40 and older. Altogether clinical trials have found a relative reduction in breast cancer mortality of 20%, but the two highest-quality trials found no reduction in mortality. Mammograms have been controversial since 2000, when a paper highlighting the results of the two highest-quality studies was published.
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 longer wavelength 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.
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.
For more information about Mammography, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
