......I had the impression later that the inability to accurately measure breast density across both public and private health systems may be a contributory factor to the ANZRC lack of support for revealing breast density to patients undergoing mammography. Basically fear of being sued .....
That is really weird, @Romla - as they already have a grading system!! ..... The diagrams shown on one of the papers pretty clearly showed the difference in the mammogram images of the 'fatty breast' tissue (Type A & B) vs Dense Breast tissue (Types C & D)
So surely, people having Mammograms who have EITHER of the Dense Breast tissue 'types C or D or 3 & 4' - it is virtually medical negligence to NOT inform them that the mammogram will not be accurate in picking up cancer lesions - as it basically applies to 50% of women being screened!! That is a HUGE number of women out there, possibly walking around with right now, with a growing cancer in them that COULD have been diagnosed & treated at an early stage, not waiting til they are Stage 3 & 4 or worse! :(
(From the BCNA presentation:)
The level of mammographic density can be scored or rated by radiologists along a scale from mostly fatty (very low density) to mostly dense. One of the most commonly used scales is the American College of Radiology’s Breast Imaging Reporting and Data System (BI-RADS), which radiologists use to classify MD on mammograms as A, B, C or D. Sometimes a numerical scale of 1, 2, 3 or 4 is used instead.
- Type A (almost entirely fatty, the lowest density): around 10 percent of women who undergo a mammogram will have mostly fatty, very low-density breasts.
- Type B (scattered areas of fibroglandular density): roughly 40 percent of women who undergo a mammogram will have this low level of density.
- Type C (heterogeneously dense): another 40 percent of women will have this type of mammographic density, which is considered dense and may obscure small masses.
- Type D (extremely dense): around 10 percent of women undergoing a mammogram will have extremely dense breasts, which lowers the sensitivity of mammography.