Mammography detectability of tumor for women over 40 is not very effective
According to a study Mammography screening for women in their forties is not very effective since its detectability is very low and can't detect tumor growth rate,
Mammography screening results formed, based on size of tumor, lifetime gained and mortality, have seemed to be poorer in women who are in their forties than women aged over fifty partly because tumors of younger women grow fast and get detected by other routine examination. Younger women`s breast tissues are denser which make it difficult for the mammogram to detect it.
Sylvia K. Plevritis who is attached with the Department of Radiology in the Stanford University, School of Medicine, and her colleagues, to investigate which factor contributes to poorer mammography screening results in younger women, reduced mammography detectability or faster tumor growth rates, used a computer simulated model to judge the relative effect of technology and biology on mammograms of women aged in their forties in comparison of women aged over fifties and sixties
The researchers took help of breast cancer screening Simulator so that they could create a hypothetical screening scenarios from where they could find out the average size of the tumor that is detectable on mammogram and the average tumor growth rate in women aged between forty to forty nine years and women aged between fifty to sixty nine years.
According to the results lower mammographic tumor detectability accounted for seventy nine percent and the time taken for the tumor to get double its size accounted for twenty one percent of the poor sensitivity in mammography screening of younger women.
According to the authors one limitation of their analysis is that they did not take into account that low mammography tumor detectability could be considered a risk factor of breast cancer, According to them more research is needed to establish a better relationship breast cancer risk and mammography breast density.
New Zealand News
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