Related Experiment Videos
Measurement of breast density with dual X-ray absorptiometry: feasibility
John A Shepherd1, Karla M Kerlikowske, Rebecca Smith-Bindman
1Department of Radiology, Osteoporosis and Arthritis Research Group, University of California at San Francisco, 94143, USA. john.shepherd@oarg.ucsf.edu
Radiology
|May 9, 2002
Abstract:
Dual x-ray absorptiometry (DXA) was used to quantify breast density with a phantom and with cadaveric breasts. With DXA, percentage of fat correlated with percentage of glandular density of the phantom (r > 0.998) and with density at mammography (r(adjusted) = 0.83). DXA precision (SD) was 0.5% without and 1.1% with breast repositioning. DXA devices can be used to accurately and precisely estimate breast tissue density.