Publications by authors named "Angel Gonzalez-Sistal"

Background/aim: Invasive lobular breast carcinoma is the second most common type of breast cancer after invasive ductal carcinoma. According to the American Cancer Society, more than 180,000 women in the United States find out they have invasive breast cancer each year. Personal history of breast cancer and certain changes in the breast are correlated with an increased breast cancer risk.

View Article and Find Full Text PDF

The aim of our study was to assess the diagnostic usefulness of the gray level parameters to distinguish osteolytic lesions using radiological images. Materials and Methods. A retrospective study was carried out.

View Article and Find Full Text PDF

Background/aim: Breast cancer is the most common type of cancer among women. Breast infiltrating ductal carcinoma (IDC) is the most common type of breast cancer, approximately 80% of all breast carcinomas. The aim of this study was to analyze the association of tumor size, evaluated after histopathological analysis, with different clinical and biological parameters in IDC.

View Article and Find Full Text PDF

Introduction: Cancer antigen 15-3 (CA 15-3) is the most widely used serum marker in diagnosing and monitoring breast cancer. The aim of this work was to analyze preoperative CA 15-3 serum levels in patients with ductal breast carcinoma in relation to 1) clinicopathological parameters, 2) hormone receptors, and 3) tissue-based tumor markers.

Methods: A group of 340 women with infiltrating ductal carcinoma of the breast who had undergone no prior treatment was studied.

View Article and Find Full Text PDF

New clinical studies in medicine are based on patients and controls using different imaging diagnostic modalities. Medical information systems are not designed for clinical trials employing clinical imaging. Although commercial software and communication systems focus on storage of image data, they are not suitable for storage and mining of new types of quantitative data.

View Article and Find Full Text PDF

Purpose: This study was conducted to evaluate the diagnostic usefulness of gray level parameters in order to distinguish healthy bone from osteoblastic metastases on digitized radiographs.

Materials And Methods: Skeletal radiographs of healthy bone (n = 144) and osteoblastic metastases (n = 35) were digitized using pixels 0.175 mm in size and 4,096 gray levels.

View Article and Find Full Text PDF