Skip to main content

Table 3 Accuracy of WB-DWI/MRI and CT for prediction of disease prevalence in the 13 peritoneal regions of the abdominal cavity

From: Whole-body diffusion-weighted MRI for operability assessment in patients with colorectal cancer and peritoneal metastases

Region

WB-DWI/MRI

CT

Sens

Spec

PPV

NPV

Sens

Spec

PPV

NPV

0

92.9 (26/28)

90.6 (29/32)

89.7 (26/29)

93.5 (29/31)

57.1 (16/28)

90.6 (29/32)

84.1 (16/19)

70.7 (29/41)

76.5–99.1

75.0–98.0

74.6–96.2

79.2–98.2

37.1–75.5

75.0–98.0

63.4–94.3

60.8–79.0

1

90.5 (19/21)

92.3 (36/39)

86.4 (19/22)

94.7 (36/38)

33.3 (7/21)

100 (39/39)

100 (7/7)

73.6 (39/53)

69.6–98.8

79.1–98.4

67.9–95.0

82.8–98.5

14.6–57.0

91.0–100

 

67.3–79.0

2

100 (11/11)

95.9 (47/49)

84.6 (11/13)

100 (47/47)

54.5 (6/11)

98 (48/49)

85.7 (6/7)

90.6 (48/53)

71.5–100

86.0–99.5

58.6–95.5

 

23.4–83.3

89.2–100

44.5–97.8

83.4–94.8

3

100 (16/16)

95.5 (42/44)

88.9 (16/18)

100 (42/42)

43.8 (7/16)

95.5 (42/44)

77.8 (7/9)

82.4 (42/51)

79.4–100

84.5–99.4

67.4–96.9

 

19.8–70.1

84.5–99.4

44.8–93.8

75.1–87.8

4

100 (21/21)

94.9 (37/39)

91.3 (21/23)

100 (37/37)

38.1 (8/21)

94.9 (37/39)

80 (8/10)

74 (37/50)

83.9–100

82.7–99.4

73.1–97.6

 

18.1–61.6

82.7–99.4

48.3–94.5

66.9–80.1

5

100 (24/24)

94.4 (34/36)

92.3 (24/26)

100 (34/34)

25 (6/24)

97.2 (35/36)

85.7 (6/7)

66 (35/53)

85.8–100

81.3–99.3

75.7–97.9

 

9.8–46.7

85.5–99.9

43.5–97.9

60.5–71.2

6

97.3 (36/37)

95.7 (22/23)

97.3 (36/37)

95.7 (22/23)

56.8 (21/37)

91.3 (21/23)

91.3 (21/23)

56.8 (21/37)

85.8–99.9

78.1–99.9

84.1–99.6

76.1–99.4

39.5–72.9

72.0–98.9

73.1–97.6

47.1–66.0

7

100 (20/20)

87.5 (35/40)

80 (20/25)

100 (35/35)

35 (7/20)

92.5 (37/40)

70 (7/10)

74 (37/50)

83.2–100

73.2–95.8

63.8–90.1

 

15.4–59.2

79.6–98.4

40.3–89.0

67.1–79.9

8

96.2 (25/26)

94.1 (32/34)

92.6 (25/27)

97 (32/33)

65.4 (17/26)

91.2 (31/34)

85 (17/20)

77.5 (31/40)

80.4–99.9

80.3–99.3

76.5–98.0

82.4–99.6

44.3–82.8

76.3–98.1

65.0–94.5

66.8–85.5

9

100 (14/14)

95.7 (44/46)

87.5 (14/16)

100 (44/44)

28.6 (4/14)

100 (46/46)

100 (4/4)

82.1 (46/56)

76.8–100

85.2–99.5

64.4–96.5

 

8.4–58.1

92.3–100

 

76.8–86.5

10

100 (17/17)

93 (40/43)

85 (17/20)

100 (40/40)

17.7 (3/17)

97.7 (42/43)

75 (3/4)

75 (42/56)

80.5–100

80.9–98.5

65.6–94.4

 

3.8–43.4

87.7–99.9

25.1–96.4

70.6–79.0

11

100 (18/18)

90.5 (38/42)

81.8 (18/22)

100 (38/38)

33.3 (6/18)

95.2 (40/42)

75 (6/8)

76.9 (40/52)

81.5–100

77.4–97.3

63.9–92.0

 

13.3–59.0

83.8–99.4

40.1–93.1

70.5–82.3

12

100 (29/29)

90.3 (28/31)

90.6 (29/32)

100 (28/28)

51.7 (15/29)

96.8 (30/31)

93.8 (15/16)

68.2 (30/44)

88.1–100

74.3–98.0

76.7–96.6

 

32.5–70.6

83.3–99.9

67.9–99.1

59.4–75.9

  1. WB-DWI/MRI magnetic resonance imaging, CT computed tomography, Sens sensitivity, Spec specificity, PPV positive predictive value, NPV negative predictive value
  2. Numbers are displayed as percentages with confidence intervals, absolute numbers between brackets. Region; region of the abdominal cavity as defined by Jaquet and Sugarbaker18