Table 2: Comparison between caliper () and algorithm () made diameter measurements for the laboratory test objects.

Object Type [mm] (±0.5 mm) [mm] 1 Hypoechoic 4.0 3.9 ± 0.2 8 Hyperechoic 9.0 8.8 ± 0.2 2 Hypoechoic 12.0 12.4 ± 0.2 7 Hyperechoic 14.2 14.0 ± 0.3 3 Hypoechoic 24.0 24.3 ± 0.6 6 Hyperechoic 23.2 23.4 ± 0.2 4 Hypoechoic 37.5 37.4 ± 0.2 5 Hyperechoic 39.0 38.9 ± 0.2