Ultrasound and Mammography

Bremsstrahlung is the major influence in most x-ray tubes with the exception of x-ray tubes for mammography. The purpose of mammography is to detect small, nonpalpable lesions in the breast. This requires a much higher image quality than normal x-ray imaging with respect to contrast and spatial resolution. Since contrast and resolution are affected by scattering, mammography tubes reduce bremsstrahlung by suitable filtering. Furthermore, mammography tubes use a material (Molybdenum) that produces an almost monochrome x ray with peak energies around 17 to 19 keV. This would be unwanted in regular x-ray imaging as most—if not all—of the radiation would be absorbed and not reach the receptor. For the breast, however, the use of low-energy beams increases the contrast between the subtle differences of different tissues. Using an (almost) monochromatic beam will also reduce scatter, which again increases contrast.

    Related Conference of Ultrasound and Mammography

    Aug 27-28, 2018

    21st World Congress on Radiology & Cancer Research

    Toronto, Ontario, Canada
    26-27th September, 2018

    20th World Congress on Radiology and Oncology

    Chicago, Illinois, USA
    April 22-23, 2019

    Global Summit on Radiation Therapy & Targeted Tumors

    Vancouver, Canada

    Ultrasound and Mammography Conference Speakers

    Recommended Sessions

    Related Journals

    Are you interested in