BACKGROUND Mammographic screening is carried out at public sector hospitals as part of clinical practice. OBJECTIVE We report the experience of such screening at Tygerberg Academic Hospital (TBAH), a tertiary referral hospital in the Western Cape Province, South Africa. METHODS All mammograms performed between 2003 and 2012 at TBAH were analysed regarding patient demographics, clinical data...

Breast cancer is currently one of the major causes of death for women in the U.S. Mammography is currently the most effective method for detection of breast cancer and early detection has proven to be an efficient tool to reduce the number of deaths. Mammography is the most demanding of all clinical imaging applications as it requires high contrast, high signal to noise ratio and resolution wit...

One of the parameters that are usually stored for mammograms is the BI-RADS density, which gives an idea of the breast tissue composition. In this work, we study the effect of BI-RADS density in our ongoing project for developing an image-based CAD system to detect masses in mammograms. This system consists of two stages. First, a blind feature extraction is performed for regions of interest (R...

Diagnosis of breast cancer in mammograms is also for specialists a difficult and error-prone task. A good opportunity to support radiologists in their decision is to find similar mammograms out of a database to compare the current case with past cases. In this work a complete content based image retrieval (CBIR) system for mass and calcification class mammograms has been implemented under usage...

AIM To examine risk factors and rates of atypical ductal hyperplasia (ADH) with and without associated breast cancer over time and tumor characteristics of breast cancer with and without associated ADH in women previously screened with mammography. METHODS Data on screening mammograms done between 1996 and 2005 were collected from mammography registries that participate in the Breast Cancer S...

A Novel hybrid segmentation method has been developed for detection of masses in digitized mammograms using three parallel approaches: adaptive thresholding method, Gabor filtering and fuzzy entropy feature as a computer-aided detection(CAD) scheme. The algorithm consists of the following steps: a) Preprocessing of the digitized mammograms including identification of region of interest (ROI) as...

Clustered microcalcifications on X-ray mammograms are an important sign in the detection of breast cancer. This paper quantitatively describes the usefulness of texture analysis methods for the detection of clustered microcalcifications on digitized mammograms. Comparative studies of texture analysis methods are performed for the proposed texture analysis method, called the surrounding region d...

BACKGROUND Mammographic screening programmes are now established in developing countries. We present an analysis of the first screening programme in sub-Saharan Africa. METHODS Women aged > or = 40 years were identified at three primary healthcare centres in the Western Cape Province, South Africa, and after giving informed consent underwent mammography at a mobile unit. After a single readin...

PURPOSE To evaluate the mammographic findings of the sternalis muscle and discuss appropriate diagnostic approaches. MATERIALS AND METHODS Ten years of records from our mammography unit were retrospectively examined for the presence of the sternalis muscle. This variant was seen in 10 women out of the 52,930 examined, and the mammograms of these patients were reevaluated. The size, shape and ...

In this paper, a hybrid segmentation method for detection of masses in digitized mammograms has been developed using three parallel approaches: adaptive thresholding method, Gabor filtering and fuzzy entropy feature as a CAD scheme. The algorithm consists of the following steps: a) Preprocessing of the digitized mammograms including identification of region of interest (ROI) as candidate for ma...