Suspicious mammographic parenchymal abnormalities that are occult at ultrasonography.

Aim: The study aims to ascertain the significance of ultrasonically occult but mammographically suspicious parenchymal abnormalities, detected at screening mammography.

Method: A retrospective analysis was made on BreastScreen Western Australia data from January 2004 to December 2009. The study group included cases with a mammographic parenchymal abnormality, a negative ultrasound scan and a biopsy under stereotactic guidance.

Is Step Down Assessment of screen-detected lesions as safe as workup at a metropolitan assessment centre?

Objective: BreastScreen WA offers population mammographic screening via fixed clinics in the metropolitan area and mobile clinics that visit country areas every two years. If an abnormality is suspected following mobile clinic screening, women undergo Step Down Assessment; diagnostic further views are performed at the mobile clinic and if a possibly significant abnormality persists, country women are referred to a Perth Metropolitan Breast Assessment Centre. The purpose of this retrospective cohort study was to determine if Step Down Assessment in country Western Australia offered the same diagnostic effectiveness as screening and assessment in the metropolitan area.

Effect of false-positive screening mammograms on rescreening in Western Australia.

Objectives: To quantify the effect of previous false-positive mammogram results on rescreening rates in a population of women participating in the BreastScreen WA (BSWA) program.

Design And Participants: Retrospective cohort study of women aged 50-69 years who received free screening mammograms at BSWA between 1 January 1995 and 31 December 2007.

Main Outcome Measures: Percentages of women attending rescreening, and risk ratios for rescreening.

Outcome of mammography in women with large breasts.

Unlabelled: Mammography has been established as an effective screening tool for the early detection of breast cancer. Obesity may lead to increased breast size and has been linked to increased rates of breast cancer. As women with larger breasts may be predisposed to developing cancer, it is important that mammography is an appropriate test in these women.

BreastScreen-based mammography screening in women with a personal history of breast cancer, Western Australian study.

Objective: To evaluate mammography screening outcomes in women with a personal history of breast cancer (PHBC), who have an increased risk of recurrent or new breast cancer, relative to women without PHBC.

Design, Setting And Participants: Retrospective study of 713,191 screening mammograms from two groups of women - those with versus those without PHBC - who participated in the BreastScreen WA program in Western Australia between 1997 and 2006.

Main Outcome Measures: Cancer detection rate (CDR), recall to assessment rate, recall positive predictive value (PPV) for cancer, and distribution of cancer characteristics within and between the two groups.