Abstract: |
Committee SC-72 of the National Council on Radiation Protection and Measurements (NCRP) has prepared a new report entitled "A Guide to Mammography and Other Breast Imaging Procedures." This report will replace NCRP Report No. 85, "Mammography-A User's Guide" published in 1986. The committee consists of various mammography specialists-radiologists, medical physicists, and an epidemiologist. The following aspects of breast imaging are addressed in the report: an overview of the uses of modern mammography; the clinical aspects of mammography. including breast anatomy, patient positioning, and proper viewing techniques; the equipment requirements of the X-ray unit-X-ray tubes, gantry, positioning devices, antiscatter grids; and the image receptors-screens, films, film processors, digital receptors, and stereotactic breast biopsy units; the many factors affecting image quality, including resolution factors, contrast factors, noise, and artifacts; mammography dose evaluation, including the calculation of mean glandular dose from measured and tabulated quantities; quality assurance, including a quality-control program for the equipment and a quality-administration program for the clinical practice; benefits from screening mammography, the risks from breast irradiation, and a comparison of benefits to risks; a description and evaluation of other breast-imaging modalities, including ultrasound, thermography, transillumination, computed tomography, magnetic resonance imaging, and magnetic resonance spectroscopy; and the conclusions and recommendations of Committee SC-72 and the NCRP Council. The report's recommendations regarding equipment specifications and quality-control activities have been made consistent with those put forth in the Federal Mammography Quality Standards Act and its clarifying documents. This report provides a wealth of information for physicians, medical physicists, radiologic technologists, allied health professionals, and members of the public. © 2004 Elsevier Inc. All rights reserved. |