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. 2012 Sep 18;7:160. doi: 10.1186/1748-717X-7-160

Table 3.

Mean values and standard deviations of parameters that evaluate the contours generated by the three software, before and after the manual correction, for each organ of the head and neck

  AA MA VA AM MM VM p value
CTV1
DSC, (SD)
0.68 (0.19)
0.67 (0.17)
0.66 (0.18)
0.72 (0.15)
0.76 (0.11)
0.71 (0.09)
#
Sensitivity, (SD)
0.73 (0.23)
0.76 (0.19)
0.74 (0.22)
0.79 (0.18)
0.85 (0.10)
0.81 (0.16)
 
IncI, (SD)
0.64 (0.17)
0.61 (0.18)
0.60 (0.17)
0.67 (0.13)
0.69 (0.13)
0.65 (0.09)
* #
ΔV (%), (SD)
14.10 (25.99)
25.92 (21.18)
23.28 (28.44)
17.72 (22.19)
24.94 (26.01)
27.40 (32.49)
 
Δx (mm), (SD)
2.62 (2.02)
2.92 (1.76)
2.44 (1.58)
2.12 (1.45)
2.70 (1.03)
2.88 (2.42)
 
Δy (mm), (SD)
2.58 (2.70)
2.66 (2.72)
2.86 (2.37)
2.60 (2.47)
2.74 (2.47)
5.30 (3.32)
 
Δz (mm), (SD)
5.40 (7.98)
5.70 (5.65)
5.10 (5.77)
5.40 (7.98)
3.60 (5.67)
4.80 (5.02)
 
CTV2
DSC, (SD)
0.84 (0.03)
0.83 (0.03)
0.81 (0.02)
0.85 (0.03)
0.84 (0.03)
0.82 (0.03)
 
Sensitivity, (SD)
0.85 (0.04)
0.86 (0.05)
0.85 (0.05)
0.86 (0.04)
0.88 (0.04)
0.86 (0.04)
 
IncI, (SD)
0.83 (0.06)
0.81 (0.06)
0.78 (0.05)
0.83 (0.06)
0.81 (0.06)
0.78 (0.06)
 
ΔV (%), (SD)
3.50 (11.31)
7.40 (13.33)
10.00 (12.34)
4.45 (10.20)
8.38 (11.57)
10.68 (12.51)
 
Δx (mm), (SD)
2.95 (2.30)
2.85 (1.85)
3.08 (1.81)
2.48 (2.56)
2.95 (1.80)
3.38 (1.37)
 
Δy (mm), (SD)
2.38 (0.69)
3.73 (2.50)
2.53 (1.94)
2.23 (0.95)
3.60 (2.54)
2.90 (1.51)
 
Δz (mm), (SD)
1.50 (1.23)
1.50 (2.12)
1.88 (2.25)
1.50 (1.23)
1.88 (1.44)
2.63 (1.44)
 
Larynx
DSC, (SD)
0.86 (0.04)
0.87 (0.01)
0.82 (0.04)
0.90 (0.03)
0.89 (0.02)
0.86 (0.05)
 
Sensitivity, (SD)
0.87 (0.06)
0.88 (0.03)
0.85 (0.06)
0.92 (0.04)
0.93 (0.01)
0.91 (0.02)
 
IncI, (SD)
0.86 (0.03)
0.85 (0.03)
0.80 (0.05)
0.87 (0.02)
0.85 (0.02)
0.82 (0.08)
 
ΔV (%), (SD)
1.43 (5.92)
3.85 (6.75)
5.83 (9.59)
5.15 (3.37)
8.55 (1.93)
11.20 (11.32)
 
Δx (mm), (SD)
0.65 (0.51)
0.38 (0.48)
0.88 (0.48)
0.90 (0.52)
0.53 (0.61)
0.50 (0.00)
 
Δy (mm), (SD)
0.38 (0.25)
0.75 (0.65)
0.40 (0.80)
0.38 (0.25)
0.50 (0.58)
0.90 (0.52)
 
Δz (mm), (SD)
5.63 (3.75)
9.75 (5.81)
3.75 (4.50)
0.75 (0.87)
1.50 (1.23)
0.75 (1.50)
 
Sup. Pharynx
DSC, (SD)
0.36 (0.22)
0.35 (0.12)
0.33 (0.13)
0.57 (0.05)
0.50 (0.14)
0.52 (0.11)
 
Sensitivity, (SD)
0.49 (0.38)
0.51 (0.35)
0.47 (0.32)
0.74 (0.10)
0.80 (0.11)
0.76 (0.11)
 
IncI, (SD)
0.42 (0.14)
0.42 (0.26)
0.40 (0.23)
0.49 (0.13)
0.40 (0.20)
0.42 (0.19)
 
ΔV (%), (SD)
27.70 (90.39)
67.50 (125.10)
57.25 (112.28)
61.63 (48.64)
146.60 (134.73)
107.58 (96.01)
 
Δx (mm), (SD)
1.18 (1.41)
1.43 (1.27)
1.73 (2.45)
0.98 (0.95)
0.75 (0.50)
1.03 (0.82)
 
Δy (mm), (SD)
1.88 (1.38)
1.90 (1.04)
3.23 (3.78)
1.13 (0.90)
1.48 (1.63)
1.88 (1.74)
 
Δz (mm), (SD)
6.00 (3.24)
6.75 (3.12)
4.88 (3.75)
3.00 (1.73)
4.50 (2.12)
3.38 (3.09)
 
Mid. Pharynx
DSC, (SD)
0.57 (0.10)
0.56 (0.13)
0.43 (0.19)
0.61 (0.09)
0.60 (0.12)
0.62 (0.12)
 
Sensitivity, (SD)
0.52 (0.12)
0.57 (0.17)
0.44 (0.19)
0.59 (0.12)
0.68 (0.15)
0.64 (0.13)
°
IncI, (SD)
0.65 (0.13)
0.56 (0.12)
0.44 (0.21)
0.64 (0.10)
0.55 (0.13)
0.61 (0.11)
* #
ΔV (%), (SD)
−18.94 (18.43)
4.62 (27.73)
4.12 (37.64)
−7.48 (16.77)
27.38 (34.84)
4.66 (9.21)
* +
Δx (mm), (SD)
0.60 (0.82)
0.80 (0.45)
1.20 (1.11)
0.90 (0.82)
0.80 (0.45)
0.70 (0.57)
 
Δy (mm), (SD)
3.32 2.64()
2.78 (1.08)
2.64 (2.256)
3.02 (2.78)
2.76 (2.32)
1.68 (1.29)
 
Δz (mm), (SD)
4.20 (4.55)
3.90 (4.70)
4.80 (5.13)
4.20 (4.42)
5.40 (4.81)
5.10 (5.37)
 
Inf. Pharynx
DSC, (SD)
0.65 (0.07)
0.66 (0.05)
0.63 (0.07)
0.71 (0.04)
0.72 (0.03)
0.72 (0.04)
 
Sensitivity, (SD)
0.59 (0.08)
0.65 (0.08)
0.60 (0.09)
0.67 (0.04)
0.72 (0.10)
0.73 (0.07)
*
IncI, (SD)
0.75 (0.11)
0.69 (0.07)
0.66 (0.09)
0.75 (0.10)
0.72 (0.05)
0.72 (0.09)
# ^
ΔV (%), (SD)
−20.04 (15.57)
−5.58 (17.12)
−7.46 (16.01)
−9.96 (14.02)
1.62 (19.64)
3.22 (18.60)
* #
Δx (mm), (SD)
1.12 (0.44)
0.72 (0.47)
0.90 (0.65)
0.60 (0.55)
0.50 (0.50)
0.70 (0.48)
 
Δy (mm), (SD)
2.06 (2.28)
1.62 (1.63)
1.38 (1.43)
1.90 (2.12)
1.52 (0.61)
1.28 (2.07)
 
Δz (mm), (SD)
3.90 (3.29)
2.70 (1.26)
3.00 (3.82)
4.50 (3.52)
4.20 (2.47)
2.70 (3.25)
 
Thyroid
DSC, (SD)
0.73 (0.11)
0.77 (0.06)
0.73 (0.07)
0.81 (0.05)
0.82 (0.06)
0.82 (0.05)
^
Sensitivity, (SD)
0.79 (0.15)
0.81 (0.10)
0.79 (0.08)
0.86 (0.08)
0.84 (0.05)
0.84 (0.04)
 
IncI, (SD)
0.69 (0.11)
0.75 (0.10)
0.70 (0.11)
0.78 (0.10)
0.81 (0.10)
0.80 (0.07)
°
ΔV (%), (SD)
14.86 (23.01)
10.34 (28.54)
15.70 (26.54)
14.00 (25.25)
5.72 (17.65)
5.98 (9.27)
°
Δx (mm), (SD)
0.98 (0.82)
1.26 (1.51)
1.48 (1.37)
0.50 (0.00)
0.70 (0.98)
1.56 (1.93)
 
Δy (mm), (SD)
1.18 (1.06)
0.98 (0.90)
1.68 (2.12)
0.70 (0.45)
0.40 (0.42)
0.60 (0.55)
 
Δz (mm), (SD)
3.00 (2.37)
2.10 (2.28)
1.50 (1.50)
2.70 (2.47)
1.20 (1.96)
2.10 (1.34)
 
Masticator space right
DSC, (SD)
0.80 (0.04)
0.82 (0.03)
0.80 (0.03)
0.85 (0.02)
0.84 (0.04)
0.84 (0.02)
°
Sensitivity, (SD)
0.79 (0.07)
0.84 (0.03)
0.80 (0.06)
0.83 (0.07)
0.91 (0.02)
0.86 (0.03)
° + =
IncI, (SD)
0.84 (0.10)
0.80 (0.03)
0.80 (0.02)
0.86 (0.05)
0.79 (0.07)
0.82 (0.02)
+ ^
ΔV (%), (SD)
−3.52 (21.72)
4.74 (3.43)
−0.62 (6.99)
−3.16 (12.28)
16.28 (12.24)
5.14 (2.48)
° =
Δx (mm), (SD)
0.82 (0.58)
1.00 (0.5)
0.82 (0.58)
0.50 (0.71)
0.90 (0.82)
0.82 (0.30)
 
Δy (mm), (SD)
1.12 (0.69)
1.20 (0.99)
1.20 (1.29)
1.02 (0.36)
1.78 (1.85)
1.30 (1.19)
 
Δz (mm), (SD)
3.30 (1.64)
4.80 (5.13)
5.40 (4.70)
2.70 (0.67)
3.00 (3.52)
2.70 (1.64)
 
Masticator Space left
DSC, (SD)
0.79 (0.05)
0.81 (0.05)
0.77 (0.05)
0.86 (0.02)
0.86 (0.03)
0.85 (0.02)
* # °
Sensitivity, (SD)
0.72 (0.08)
0.79 (0.08)
0.73 (0.09)
0.82 (0.05)
0.89 (0.03)
0.86 (0.04)
* ° + ^
IncI, (SD)
0.89 (0.05)
0.85 (0.01)
0.82 (0.01)
0.90 (0.02)
0.83 (0.07)
0.84 (0.03)
° + ^
ΔV (%), (SD)
−18.64 (12.32)
−7.02 (10.16)
−10.58 (12.18)
−8.30 (5.83)
8.26 (10.51)
3.00 (5.82)
° + ^
Δx (mm), (SD)
0.84 (1.34)
1.02 (0.65)
1.02 (0.82)
1.040 (0.96)
0.92 (0.58)
0.62 (0.69)
 
Δy (mm), (SD)
2.26 (1.85)
1.76 (1.27)
2.12 (0.80)
1.820 (1.08)
2.52 (2.76)
1.94 (1.37)
 
Δz (mm), (SD)
3.00 (2.60)
6.00 (5.09)
6.00 (5.91)
2.40 (0.82)
3.00 (4.37)
2.40 (1.34)
 
Mandible
DSC, (SD)
0.89 (0.02)
0.86 (0.02)
0.84 (0.02)
0.90 (0.02)
0.89 (0.02)
0.89 (0.02)
*
Sensitivity, (SD)
0.87 (0.05)
0.86 (0.04)
0.82 (0.04)
0.88 (0.04)
0.92 (0.03)
0.92 (0.03)
+ ^
IncI, (SD)
0.92 (0.02)
0.86 (0.05)
0.86 (0.06)
0.92 (0.02)
0.86 (0.05)
0.87 (0.05)
* # + ^
ΔV (%), (SD)
−4.76 (7.12)
−0.48 (9.51)
−3.60 (12.00)
−3.88 (6.02)
7.06 (9.05)
7.02 (8.78)
 
Δx (mm), (SD)
0.30 (0.27)
0.60 (0.42)
0.50 (0.35)
0.30 (0.27)
0.70 (0.57)
0.30 (0.27)
 
Δy (mm), (SD)
0.30 (0.27)
0.40 (0.22)
0.50 (0.35)
0.30 (0.27)
0.30 (0.27)
0.20 (0.27)
 
Δz (mm), (SD)
0.60 (0.82)
0.30 (0.67)
1.20 (1.26)
0.90 (0.82)
0.60 (0.82)
0.60 (0.82)
 
Spinal cord
DSC, (SD)
0.70 (0.10)
0.81 (0.05)
0.78 (0.06)
0.84 (0.02)
0.87 (0.01)
0.86 (0.01)
*
Sensitivity, (SD)
0.60 (0.14)
0.78 (0.10)
0.75 (0.08)
0.78 (0.05)
0.87 (0.03)
0.88 (0.04)
* #
IncI, (SD)
0.89 (0.07)
0.86 (0.07)
0.83 (0.08)
0.91 (0.05)
0.87 (0.02)
0.84 (0.03)
 
ΔV (%), (SD)
−32.46 (19.30)
−9.00 (16.93)
−8.40 (14.92)
−13.18 (9.26)
0.66 (4.55)
5.52 (8.34)
* # + ^
Δx (mm), (SD)
0.80 (0.45)
0.60 (0.22)
0.92 (0.66)
1.00 (0.80)
0.90 (0.42)
0.30 (0.27)
 
Δy (mm), (SD)
3.62 (6.98)
4.88 (7.20)
2.78 (3.96)
0.92 (0.43)
0.32 (0.72)
0.62 (0.59)
 
Δz (mm), (SD)
7.80 (11.74)
7.20 (12.79)
6.00 (10.92)
0.60 (0.82)
0.30 (0.67)
0.00 (0.00)
 
Parotid gland right
DSC, (SD)
0.78 (0.08)
0.79 (0.07)
0.73 (0.08)
0.80 (0.06)
0.82 (0.05)
0.80 (0.05)
# ° =
Sensitivity, (SD)
0.79 (0.13)
0.82 (0.12)
0.79 (0.16)
0.82 (0.12)
0.86 (0.10)
0.84 (0.10)
+
IncI, (SD)
0.80 (0.11)
0.77 (0.09)
0.71 (0.08)
0.80 (0.09)
0.79 (0.07)
0.79 (0.10)
#
ΔV (%), (SD)
−1.06 (21.92)
8.96 (21.67)
13.02 (29.54)
4.40 (22.94)
10.40 (18.23)
9.14 (23.61)
*
Δx (mm), (SD)
1.50 (1.00)
1.62 (1.24)
2.02 (1.06)
1.96 (1.79)
1.62 (1.24)
1.94 (1.19)
 
Δy (mm), (SD)
6.46 (7.06)
5.64 (5.66)
6.58 (6.25)
6.4 (7.11)
4.32 (6.34)
5.76 (7.04)
 
Δz (mm), (SD)
2.40 (0.82)
2.40 (0.82)
3.60 (2.51)
1.80 (1.26)
1.50 (1.06)
1.20 (1.64)
 
Parotid gland left
DSC, (SD)
0.79 (0.07)
0.78 (0.08)
0.73 (0.04)
0.80 (0.07)
0.81 (0.06)
0.81 (0.05)
°
Sensitivity, (SD)
0.77 (0.11)
0.79 (0.11)
0.77 (0.05)
0.79 (0.11)
0.83 (0.09)
0.85 (0.07)
^
IncI, (SD)
0.82 (0.07)
0.77 (0.11)
0.69 (0.04)
0.82 (0.09)
0.80 (0.11)
0.78 (0.08)
#
ΔV (%), (SD)
−5.84 (17.41)
4.44 (20.36)
12.96 (4.75)
−1.88 (21.29)
6.54 (21.64)
9.78 (14.61)
*
Δx (mm), (SD)
2.00 (1.46)
2.46 (1.23)
2.12 (1.43)
2.12 (1.62)
2.08 (1.46)
3.08 (1.75)
^
Δy (mm), (SD)
1.68 (2.21)
2.60 (1.37)
2.12 (1.76)
1.38 (1.60)
0.78 (1.21)
1.38 (2.00)
 
Δz (mm), (SD)
3.60 (2.73)
3.30 (2.68)
4.50 (1.50)
2.70 (1.96)
3.60 (2.73)
2.70 (2.23)
 
Cochlea right
DSC, (SD)
0.63 (0.13)
0.63 (0.17)
0.46 (0.16)
0.80 (0.03)
0.77 (0.10)
0.69 (0.07)
# ° ^
Sensitivity, (SD)
0.59 (0.17)
0.68 (0.24)
0.42 (0.13)
0.77 (0.09)
0.84 (0.11)
0.80 (0.10)
# °
IncI, (SD)
0.71 (0.17)
0.64 (0.23)
0.55 (0.25)
0.88 (0.09)
0.72 (0.07)
0.64 (0.14)
# + ^
ΔV (%), (SD)
−5.28 (6.84)
16.94 (54.41)
−15.74 (23.04)
−7.36 (17.40)
17.9 (21.82)
33.98 (49.56)
+
Δx (mm), (SD)
0.90 (0.42)
0.72 (0.47)
1.28 (1.11)
0.42 (0.24)
0.62 (0.69)
0.72 (0.88)
 
Δy (mm), (SD)
1.38 (1.77)
1.38 (1.20)
1.60 (1.90)
0.40 (0.42)
0.30 (0.27)
0.72 (0.30)
 
Δz (mm), (SD)
0.50 (0.71)
0.90 (0.82)
2.40 (2.01)
0.40 (0.65)
0.30 (0.67)
0.90 (0.82)
 
Cochlea left
DSC, (SD)
0.52 (0.16)
0.69 (0.10)
0.59 (0.07)
0.78 (0.07)
0.78 (0.04)
0.72 (0.07)
°
Sensitivity, (SD)
0.45 (0.22)
0.69 (0.13)
0.58 (0.07)
0.69 (0.09)
0.81 (0.05)
0.75 (0.08)
* +
IncI, (SD)
0.87 (0.10)
0.70 (0.15)
0.63 (0.13)
0.92 (0.05)
0.76 (0.09)
0.72 (0.16)
* # + ^
ΔV (%), (SD)
−51.04 (29.55)
6.06 (30.04)
−5.40 (13.70)
−23.32 (10.44)
10.24 (12.62)
11.50 (34.88)
* + ^
Δx (mm), (SD)
1.00 (0.50)
0.60 (0.42)
1.00 (0.71)
0.30 (0.27)
0.40 (0.22)
0.50 (0.50)
 
Δy (mm), (SD)
0.40 (0.42)
0.40 (0.42)
0.90 (0.55)
0.60 (0.55)
0.20 (0.45)
1.00 (0.50)
=
Δz (mm), (SD)
0.90 (0.82)
1.00 (1.28)
1.00 (1.28)
0.30 (0.67)
1.20 (1.26)
0.40 (0.65)
 
Brain stem
DSC, (SD)
0.80 (0.07)
0.81 (0.11)
0.77 (0.15)
0.88 (0.02)
0.88 (0.03)
0.89 (0.03)
 
Sensitivity, (SD)
0.74 (0.09)
0.76 (0.17)
0.73 (0.22)
0.86 (0.04)
0.86 (0.08)
0.89 (0.03)
 
IncI, (SD)
0.89 (0.06)
0.89 (0.03)
0.85 (0.03)
0.90 (0.02)
0.90 (0.03)
0.88 (0.04)
 
ΔV (%), (SD)
−17.50 (8.23)
−14.36 (19.96)
−13.68 (26.28)
−4.54 (6.22)
−4.00 (10.88)
1.44 (1.75)
^
Δx (mm), (SD)
0.70 (0.57)
1.32 (0.78)
1.12 (0.69)
0.60 (0.22)
0.92 (0.86)
1.04 (1.02)
 
Δy (mm), (SD)
1.40 (0.82)
1.76 (0.80)
1.88 (0.74)
0.68 (0.82)
0.90 (1.34)
1.10 (0.67)
 
Δz (mm), (SD)
2.40 (3.29)
3.00 (3.82)
4.20 (4.67)
0.90 (0.82)
0.90 (1.34)
0.30 ()
 
Esophagus
DSC, (SD)
0.63 (0.10)
0.65 (0.15)
0.64 (0.13)
0.83 (0.05)
0.84 (0.06)
0.83 (0.06)
 
Sensitivity, (SD)
0.57 (0.15)
0.57 (0.19)
0.63 (0.17)
0.85 (0.06)
0.87 (0.04)
0.88 (0.02)
 
IncI, (SD)
0.76 (0.12)
0.79 (0.09)
0.67 (0.11)
0.82 (0.10)
0.82 (0.11)
0.79 (0.10)
°
ΔV (%), (SD)
−21.68 (29.94)
−27.04 (26.22)
−5.92 (23.75)
5.62 (18.34)
8.26 (18.26)
12.04 (12.37)
 
Δx (mm), (SD)
1.12 (0.42)
1.38 (1.05)
1.54 (0.86)
0.60 (0.65)
0.80 (0.57)
1.00 (0.79)
 
Δy (mm), (SD)
3.84 (5.83)
4.54 (6.48)
3.66 (3.77)
0.82 (0.84)
1.12 (0.76)
0.72 (0.79)
 
Δz (mm), (SD) 7.80 (11.64) 7.50 (12.68) 6.60 (10.64) 1.50 (1.06) 1.20 (1.26) 1.20 (1.26)  

For automatic segmentation: *AA vs. MA: p<0.043, #AA vs. VA: p<0.043, °MA vs. VA: p<0.043.

For automatic segmentation+ manual correction: +AM vs. MM: p<0.043, ^AM vs. VM: p<0.043, =MM vs. VM: p<0.043.

Abbreviations: CTV = Clinical target volume; SD = Standard deviation, DSC = DICE similarity coefficient, IncI = inclusiveness index, AA = Abas Automatic, MA = MiM Automatic, VA = Velocity Automatic, AM = Abas Manual Correction, MM = MiM Manual Correction, VM = Velocity Manual Correction.