Measurement of breast density with dual X-ray absorptiometry: feasibility.

Shepherd, John A; Kerlikowske, Karla M; Smith-Bindman, Rebecca; Genant, Harry K; Cummings, Steve R · Radiology · 2002

biomechanical · Level V

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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.

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