What is the sensitivity of a mammogram?
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The sensitivity of mammography ranges from approximately 70% to 90% [7-14]. Thus, for a woman with breast cancer, the probability that her cancer will be detected on mammography is 70-90% and the probability that it will not be detected is 10-30%.
Is mammography sensitive or specific?
To summarize, our data confirmed that digital mammography is a highly accurate tool for breast cancer detection, having a sensitivity of 97%, a specificity of 64.5%, a positive predictive value of 89%, and a negative predictive value of 90.9%, with a diagnostic accuracy of 89.3%.
How accurate are screening mammograms?
Overall, screening mammograms miss about 1 in 8 breast cancers. Women with dense breasts are more likely to get false-negative results. False-negative mammograms can give women a false sense of security, thinking that they don’t have breast cancer when in fact they do.
What is the detection rate of mammography?
The mean cancer detection rate was 5.2 cancers per 1000 screening mammograms (range, 3–10 cancers/1000 mammograms for the individual radiologists). The PPV1 of an abnormal screening mammogram was 3.9%.
Which lowers the sensitivity of mammography?
Type D (extremely dense): around 10 percent of women undergoing a mammogram will have extremely dense breasts, which lowers the sensitivity of mammography.
Why have I been recalled after a mammogram?
You may be called back to a breast assessment clinic after your mammogram. This is because screening suggests further tests are needed. This does not necessarily mean there’s something wrong, as three out or four women recalled have normal results after attending the assessment clinic.
Are screening tests sensitive or specific?
An ideal screening test is exquisitely sensitive (high probability of detecting disease) and extremely specific (high probability that those without the disease will screen negative). However, there is rarely a clean distinction between “normal” and “abnormal.”
Can I refuse a mammogram?
Women who refuse mammography based on concerns about radiation or other factors (for example, pain/discomfort from compression) should be counseled on the safety of mammography, the low risks of the radiation associated with mammography, and the success of mammography as a screening test.
Does mammogram have side effects?
The main risks and other adverse consequences from screening mammography include discomfort from breast compression, patient recall for additional imaging, and false positive biopsies.
How can I stop worrying about mammogram results?
4 WAYS OF OVERCOMING YOUR MAMMOGRAM FEARS
- Positive Coping Statements. When your brain is screaming at you to put on the brakes, overcome the negative thought patterns with positive coping statements.
- Offer Yourself Immediate Rewards.
- Talk to Friends and Family.
- Educate Yourself and Set Expectations.
How sensitive is screening mammography?
From its inception, screening mammography has enjoyed a perceived level of sensitivity that is inconsistent with available evidence.
How accurate is mammography for breast cancer?
Overall, the sensitivity of mammography is about 87 percent [ 31 ]. This means mammography correctly identifies about 87 percent of women who truly have breast cancer. Sensitivity is higher in women over 50 than in younger women [ 2 ]. It’s also higher in women with fatty breasts than in women with dense breasts [ 2 ]. Learn more about sensitivity.
How sensitive are women with dense breasts to breast cancer screening?
Among women with dense breasts, the sensitivity was also particularly low for women with a heterogenous texture: 61% for BI-RADS density score 3 and MTR marker 4, and 41% for BI-RADS density score 4 and MTR marker 4. Screening specificity was high in all subgroups resulting from the combination of density and texture levels.
What are screening mammograms for breast cancer?
Screening Mammography Examinations: mammography examinations indicated by the radiologist to be for screening, with bilateral routine views done and no other mammogram within the last 9 months, among women without breast implants.