|
Appendiceal diameter ≥ 12 mma
|
61.7
|
65.1
|
63.5
|
1.8
|
0.6
|
61.1
|
65.7
|
< 0.001
|
|
(51.1–71.5)
|
(55.2–74.1)
|
(56.4–70.2)
|
(1.3–2.4)
|
(0.4–0.8)
|
(53.6–68.0)
|
(58.9–72.0)
|
|
Tip appendiceal diameter ≥ 10 mmb (n = 186)
|
68.3
|
54.8
|
60.8
|
1.5
|
0.6
|
54.4
|
68.7
|
< 0.001
|
|
(57.1–78.1)
|
(44.7–64.7)
|
(53.3–67.8)
|
(1.2–2.0)
|
(0.4–0.8)
|
(47.9–60.7)
|
(60.4–75.9)
|
|
Mucosal hyperenhancement
|
10.9
|
57.6
|
35.5
|
0.3
|
1.6
|
18.7
|
41.9
|
0.396
|
|
(4.1–22.3)
|
(47.6–67.1)
|
(28.1–43.4)
|
(0.1–0.6)
|
(1.3–1.9)
|
(9.5–33.6)
|
(37.4–46.5)
|
|
Mucosal enhancement defect
|
83.2
|
79.3
|
81.1
|
4.0
|
0.2
|
78.2
|
84.0
|
< 0.001
|
|
(74.1–90.0)
|
(70.3–86.5)
|
(75.0–86.3)
|
(2.7–5.9)
|
(0.1–0.3)
|
(71.0–84.0)
|
(76.9–89.2)
|
|
Intraluminal appendicolith
|
52.6
|
77.4
|
65.7
|
2.3
|
0.6
|
67.5
|
64.6
|
< 0.001
|
|
(42.1–63.0)
|
(68.2–84.9)
|
(58.7–72.2)
|
(1.6–3.5)
|
(0.5–0.8)
|
(58.3–75.7)
|
(59.0–69.8)
|
|
Appendicolith causing obstruction
|
41.5
|
82.9
|
63.3
|
2.4
|
0.7
|
68.4
|
61.3
|
< 0.001
|
|
(31.4–52.1)
|
(74.3–89.5)
|
(56.2–70.0)
|
(1.5–3.9)
|
(0.6–0.9)
|
(57.2–77.9)
|
(56.6–65.7)
|
|
Fat stranding; moderate–severe
|
96.8
|
42.5
|
68.2
|
1.7
|
0.1
|
60.1
|
93.8
|
< 0.001
|
|
(91.1–99.3)
|
(32.9–52.4)
|
(61.2–74.5)
|
(1.4–2.0)
|
(0.0–0.2)
|
(56.1–64.1)
|
(82.8–97.9)
|
|
Phlegmon
|
10.5
|
99.1
|
57.2
|
11.2
|
0.9
|
90.9
|
55.3
|
0.003
|
|
(5.2–18.5)
|
(94.9–100.0)
|
(50.1–64.2)
|
(1.5–85.6)
|
(0.8–1.0)
|
(56.6–98.7)
|
(53.5–57.0)
|
|
Fluid collection
|
24.2
|
99.1
|
63.7
|
25.7
|
0.8
|
95.8
|
59.3
|
< 0.001
|
|
(16.0–34.1)
|
(94.9–100.0)
|
(56.6–70.3)
|
(3.5–186.4)
|
(0.7–0.9)
|
(76.0–99.4)
|
(56.5–62.1)
|
|
Extraluminal appendicolith
|
6.3
|
100.0
|
55.7
|
N/A
|
0.9
|
100.0
|
54.4
|
0.010
|
|
(2.4–13.2)
|
(96.6–100.0)
|
(48.6–62.7)
|
(0.9–1.0)
| |
(53.1–55.7)
|
|
Periappendiceal air
|
43.2
|
100.0
|
73.1
|
N/A
|
0.6
|
100.0
|
66.3
|
< 0.001
|
|
(33.0–53.7)
|
(96.6–100.0)
|
(66.5–79.1)
|
(0.5–0.7)
| |
(62.2–70.0)
|
|
Periappendiceal fluid
|
76.8
|
71.7
|
74.1
|
2.7
|
0.3
|
70.9
|
77.6
|
< 0.001
|
|
(67.1–84.9)
|
(62.1–80.0)
|
(67.5–80.0)
|
(2.0–3.8)
|
(0.2–0.5)
|
(63.8–77.1)
|
(70.2–83.6)
|
|
Ascites
|
46.3
|
84.9
|
66.7
|
3.1
|
0.6
|
73.3
|
63.8
|
< 0.001
|
|
(36.0–56.9)
|
(76.7–91.1)
|
(59.7–73.1)
|
(1.9–5.1)
|
(0.5–0.8)
|
(62.5–81.9)
|
(59.0–68.4)
|
|
Small bowel dilatation
|
15.8
|
98.1
|
59.2
|
8.4
|
0.9
|
88.2
|
56.5
|
< 0.001
|
|
(9.1–24.7)
|
(93.4–99.8)
|
(52.1–66.1)
|
(2.0–35.7)
|
(0.8–0.9)
|
(63.8–97.0)
|
(54.3–58.8)
|
|
Small bowel thickening
|
49.5
|
87.7
|
69.7
|
4.0
|
0.6
|
78.3
|
66.0
|
< 0.001
|
|
(39.1–59.9)
|
(79.9–93.3)
|
(62.8–75.9)
|
(2.3–7.0)
|
(0.5–0.7)
|
(67.6–86.2)
|
(61.1–70.5)
|
