نتایج جستجو برای: mammographic density
تعداد نتایج: 412308 فیلتر نتایج به سال:
High breast density as measured on mammograms is a strong risk factor for breast cancer in the general population, but its effect in carriers of germline BRCA1 and BRCA2 mutations is unclear. We obtained mammograms from 206 female carriers of BRCA1 or BRCA2 mutations, 96 of whom were subsequently diagnosed with breast cancer and 136 relatives of carriers who were themselves noncarriers. We comp...
Mammography is a well-accepted diagnostic technique for the early detection of breast cancer and has been shown to reduce the breast cancer mortality rate in women who are 40-69 years old Boonlikit (2013). Some studies explained age and race related changes in mammographic parenchymal patterns (Zulfiqar et al., 2011). The radiology appearance of the female breast varies from completely fatty to...
BACKGROUND The Alberta Physical Activity and Breast Cancer Prevention (ALPHA) Trial examined the influence of aerobic exercise on biological factors that are associated with breast cancer risk. Mammographic density, a secondary outcome, is reported here. METHODS The ALPHA Trial was a parallel group randomized controlled trial conducted between May 2003 and July 2007. Postmenopausal, sedentary...
OBJECTIVE We examine to what extent the lower mammographic sensitivity found in hormone replacement therapy (HRT) users can be explained by any association of HRT use with higher mammographic density and more difficult to detect cancers. METHODS We used logistic regression to estimate the odds of a false-negative screen (a breast cancer diagnosed in the 24 months after a negative screening ex...
Breast density has become an important issue in current breast cancer screening, both as a recognized risk factor for breast cancer and by decreasing screening efficiency by the masking effect. Different qualitative and quantitative methods have been proposed to evaluate area-based breast density and volumetric breast density (VBD). We propose a validation method comparing the computation of VB...
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