Mammography

About: Mammography is a research topic. Over the lifetime, 20643 publications have been published within this topic receiving 513679 citations.

Implementing Recommendations for the Early Detection of Breast and Cervical Cancer Among Low-Income Women

Abstract: Although the causes and natural histories of breast and cervical cancer are different, the public health responses to these diseases have been similar. Early detection of breast cancer and primary prevention of cervical cancer are possible through community-based screening programs; however, early detection of both breast and cervical cancer is less common among low-income women (defined as up to 250% of poverty level, depending on family size). This report presents morbidity and mortality data regarding breast and cervical cancer, screening recommendations, an update on the National Breast and Cervical Cancer Early Detection Program (NBCCEDP), and recommended priority activities for the NBCCEDP. The NBCCEDP is a major public health effort to increase breast and cervical cancer screening among uninsured, low-income women.

Factors Related to Underuse of Surveillance Mammography Among Breast Cancer Survivors

Abstract: Purpose Many older breast cancer survivors do not undergo annual mammography despite guideline recommendations. We identified factors associated with underuse of surveillance mammography and examined whether variation was explained by differences in follow-up care. Patients and Methods We used Surveillance, Epidemiology, and End Results-Medicare data to identify a population-based sample of 44,511 women fee-for-service Medicare enrollees aged ≥ 65 years who were diagnosed with stage I or II breast cancer in 1992 to 1999 who underwent primary surgical therapy. We assessed factors associated with mammography during months 7 to 18, 19 to 30, and 31 to 42 after breast cancer diagnosis using repeated-measures logistic regression; and we examined whether follow-up care with providers of various specialties explained variation in mammography use. Results Only three quarters of women (77.6%) underwent mammography during months 7 to 18 after diagnosis, and only 56.7% had mammography yearly over 3 years. In multiva...

Automated analysis of mammographic densities and breast carcinoma risk

Abstract: BACKGROUND There is considerable evidence that one of the strongest risk factors for breast carcinoma can be assessed from the mammographic appearance of the breast. However, the magnitude of the risk factor and the reliability of the prediction depend on the method of classification. Subjective classification requires specialized observer training and suffers from inter- and intraobserver variability. Furthermore, the categoric scales make it difficult to distinguish small differences in mammographic appearance. To address these limitations, automated analysis techniques that characterize mammographic density on a continuous scale have been considered, but as yet, these have been evaluated only for their ability to reproduce subjective classifications of mammographic parenchyma. METHODS In this study, using a nested case-control design, the authors evaluated the direct association between breast carcinoma risk and quantitative image features derived from automated analysis of digitized film mammograms. Two parameters, one describing the distribution of breast tissue density as reflected by brightness of the mammogram (regional skewness) and the other characterizing texture (fractal dimension), were calculated for images from 708 subjects identified from the Canadian National Breast Screening Study. RESULTS These parameters were evaluated for their ability to distinguish cases (those women who developed breast carcinoma) from controls. It was found that both the skewness and fractal parameters were significantly related to risk of developing breast carcinoma. CONCLUSIONS Although the relative risk estimates were moderate (typically ≥ 2.0) and less than those from subjective classification or for an interactive computer method the authors have previously described, they are comparable to other risk factors for the disease. The observer independence and reproducibility of the automated methods may facilitate their more widespread use. Cancer 1997; 80:66-74. ©; 1997 American Cancer Society.

Interval breast cancers in the screening mammography program of British Columbia : analysis and classification

Abstract: Interval cancers in an annual mammography screening program are defined as cancers detected within 12 months after a mammographic screening in which findings are considered normal. Our objective was to analyze interval cancers for histologic type, tumor size, staging, and histologic grade. A classification for interval cancers is presented. Detection of interval cancers is an integral part of quality control and is required for the establishment of sensitivity rates for screening mammography, a necessary part of implementing the recommendations for breast cancer screening.A total of 47,583 mammographic screening examinations of 38,219 women were available for review for the period of July 1988 to March 1991. Linkage with the provincial population-based cancer registry provided identification of all interval cancers of the breast. Histologic analysis of breast cancers was provided by an internationally recognized breast cancer pathologist who interpreted the specimens twice.A total of 207 breast cancers we...

Inflammatory Breast Cancer: What We Know and What We Need to Learn

Abstract: Purpose. We review the current status of multidisciplinary care for patients with inflammatory breast cancer (IBC) and discuss what further research is needed to advance the care of patients with this disease. Design. We performed a comprehensive review of the English-language literature on IBC through computerized literature searches. Results. Significant advances in imaging, including digital mammography, high-resolution ultrasonography with Doppler capabilities, magnetic resonance imaging, and positron emission tomography–computed tomography, have improved the diagnosis and staging of IBC. There are currentlynoestablishedmolecularcriteriafordistinguishing IBC from noninflammatory breast cancer. Such crite