Skip to main content
Figure 12 | BioMedical Engineering OnLine

Figure 12

From: Effective radiation attenuation calibration for breast density: compression thickness influences and correction

Figure 12

Water/oil mixture calibration region example. The 650 × 800 pixel region of interest outlined in Figure 11 (left image) is shown (34/66 mixture). The left figure shows the raw pixel value representation and the right figure shows the calibrated representation. For reference, percent glandular (PG) = 32-34 in the pronounced darker regions and PG = 36-37 in the lighter regions in the right figure. These slight variations are due to water-oil separation; the perceived contrast is due to the overall uniform contrast of the larger background area and does not represent large pixel value differences. The checking is due to the coarse resolution of the mapping.

Back to article page