Shepherd John A, Kerlikowske Karla M, Smith-Bindman Rebecca, Genant Harry K, Cummings Steve R
Department of Radiology, Osteoporosis and Arthritis Research Group, University of California at San Francisco, 94143, USA.
Radiology. 2002 May;223(2):554-7. doi: 10.1148/radiol.2232010482.
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.
双能X线吸收法（DXA）被用于通过模体和尸体乳房来量化乳房密度。使用DXA时，脂肪百分比与模体的腺体密度百分比相关（r>0.998），且与乳腺钼靶密度相关（r（校正后）=0.83）。DXA的精密度（标准差）在不重新定位乳房时为0.5%，重新定位乳房时为1.1%。DXA设备可用于准确且精确地估计乳房组织密度。
