Research Article

Automatic Approach for Lung Segmentation with Juxta-Pleural Nodules from Thoracic CT Based on Contour Tracing and Correction

Table 4

Experimental result of lung segmentation on 45 testing scans. AVG indicates average result, and SD is short for standard deviation.

IDVDVOERVDASDRMSDMSD
(cm3)(%)(%)(mm)(mm)(mm)(cm3)(cm3)

1−47.313.0242−1.311.0991.759318.95733671.563624.25
238.302.74791.090.76051.561518.1223485.203523.50
371.743.60332.141.00781.750421.1773275.973347.71
441.671.67231.140.66512.353919.65053615.243656.91
5−54.483.2045−1.471.1232.055428.24713769.773715.29
631.333.64961.080.87621.710713.66322873.392904.72
7−50.564.6419−1.460.89331.464720.76813505.043454.47
8−38.362.2887−1.160.55021.576213.26093332.933294.57
975.495.25181.521.07221.528717.79074881.784957.27
10−62.663.1748−1.680.95671.844415.06823796.923734.26
1135.492.57871.221.05841.672113.64482881.472916.96
1243.621.67441.611.01071.80619.33292658.322701.95
13−49.493.1636−1.451.03691.553710.07053459.813410.32
1459.685.49111.990.77181.730219.32782945.883005.56
1545.512.7481.131.0051.643119.92963967.294012.79
1629.853.36060.770.98020.941111.30133825.413855.26
1764.092.40391.830.46770.701310.24713439.353503.43
18−57.974.3397−1.911.12411.392922.91753099.423041.45
197.985.52380.231.10061.972115.06823531.613539.59
2030.773.68620.781.02431.776320.10773938.133968.90
2182.821.77742.200.37120.747618.9133685.223768.04
2278.426.12842.090.51640.918737.73413681.383759.81
2339.895.03261.130.61091.815830.3043491.123531.01
2475.161.76242.240.43991.104417.65253283.023358.19
25−50.814.5438−1.310.67192.357632.50253918.143867.33
2692.245.94882.381.03483.489338.39253776.063868.30
2715.432.30370.530.35110.927316.75612879.302894.73
28−46.442.5115−1.340.55231.521616.66893508.693462.25
29119.994.21392.690.67182.062829.61654342.924462.90
30−29.242.8285−0.600.85941.868224.90894887.264858.02
3121.641.76540.570.54371.148916.53993799.973821.61
32148.215.27814.871.00582.921125.73592892.253040.47
3387.096.01833.161.08962.512821.86252668.692755.78
34−168.484.5721−3.911.09392.305121.98114472.124303.64
3551.991.89471.730.32341.107426.69142950.363002.35
36−97.875.4153−2.531.10192.736333.25423970.863872.99
37122.953.70162.480.85641.873122.63374835.664958.61
38−137.555.2533−4.151.19193.068347.35663449.083311.53
39−83.382.6188−2.750.65921.403617.72623110.783027.40
4031.081.68710.870.44720.909813.28453543.873574.96
4126.112.45150.660.27120.728526.06943945.083971.20
42−71.332.7375−1.970.72561.459917.61443692.753621.42
4322.823.38680.620.40870.914710.29613681.113703.93
4433.291.38390.940.33180.774312.38963505.113538.40
45−77.184.3108−2.400.91472.834534.89653290.293213.11

AVG11.153.50570.31760.79171.695721.34303582.573593.71
SD69.631.37191.94450.27410.65688.1743529.47528.37