from The American Heritage® Dictionary of the English Language, 4th Edition
- n. X-ray examination of the breasts for detection of tumors.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. X-ray examination of the breasts for diagnosing and locating abnormalities, especially tumours.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a diagnostic procedure to detect breast tumors by the use of X rays
In many respects, they were trying to say that mammography is imperfect.
LUDDEN: Richard Knox, I was interested to read that mammography is not as effective as screening methods for some other kinds of cancer.
Also, not surprisingly, routine premenopausal mammography is practiced by no nation other than the U.S.
You should talk to your doctor and make an informed decision about whether a mammography is right for you based on your family history, general health, and personal values.
As an oncologist, I find this highly-plausible; the purpose of mammography is to identify tumors in early stage and spare women morbidity and mortality associated from advanced disease.
If the benefit of screening mammography is higher -- say in the range of 45 percent, as was supported by a 2007 paper, also published in the NEJM -- then the value would exceed 20,000 women's lives per year.
In the U.S., where some 45,000 women die each year of breast cancer, we'd save approximately 4500 lives per year if the added value of mammography is only 10 percent.
Although mammography is able to spot tumors as small as an eighth of an inch, which contain eight million cells, the average size at diagnosis with mammography is about 600 million cells.
As a result, mammography is only leading physicians to diagnose an ever-larger number of harmless tumors.
A similar radical stance was adopted by Michael Baum, the research director of the British Institute of Cancer Research, who quit England's national breast-cancer-screening advisory board last September because nationwide mammography is "not worth doing."
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