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Table 6 The 31/69 mixture calibration example.

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

31/69 calibration

ts/t (cm)

5.5/6.0

4.5/5.0

4.0/4.5

3.5/4.0

3.0/3.6

2.5/3.2

Compression

force (dN)

0.0

3.0

4.0

6.0

9.0

13.0

PG (10%)

32.6 (2.2)

33.6(1.0)

34.9 (1.0)

34.6(1.3)

34.2 (1.6)

36.3 (2.0)

PGs (68%)

43.6(2.2)

48.0(1.0)

50.8(1.0)

52.6(1.3)

55.3(1.5)

61.8(1.8)

PGs+5 (19%)

31.8(2.1)

34.5(0.9)

36.4(0.9)

37.1(1.1)

38.5 (1.4)

43.8 (1.7)

  1. Quantities were derived from the outlined region shown in Figure 11 (right) using a similar format (see Table 5).