Copyright
©The Author(s) 2024.
World J Gastrointest Surg. Jan 27, 2024; 16(1): 21-28
Published online Jan 27, 2024. doi: 10.4240/wjgs.v16.i1.21
Published online Jan 27, 2024. doi: 10.4240/wjgs.v16.i1.21
Table 1 The baseline characteristics of the patients with a normal appendix and acute appendicitis and sonographic characteristics
Item | Normal appendix (n = 112) | Acute appendicitis (n = 233) | Statistics (t/χ2/Z) | P value |
Sex, n (%) | 14.2882 | < 0.001 | ||
Male | 29 (25.9) | 110 (47.2) | ||
Female | 83 (74.1) | 123 (52.8) | ||
Age (yr) M (IQR) | 31.0 (24.0, 39.8) | 37.0 (28.0, 49.5) | -3.4093 | 0.001 |
Detectable length (mm) M (IQR) | 34.8 (29.8, 43.9) | 53.2 (45.0, 64.7) | -10.1643 | < 0.001 |
SD (mm, mean ± SD) | 4.9 ± 0.9 | 9.9 ± 2.0 | -31.7221 | < 0.001 |
LD (mm, mean ± SD) | 6.5 ± 1.0 | 10.7 ± 2.2 | -24.3401 | < 0.001 |
RATIO (mean ± SD) | 1.32 ± 0.16 | 1.09 ± 0.07 | 15.0711 | < 0.001 |
Mural lamina n (%) | 49.9492 | < 0.001 | ||
Clear | 110 (98.2) | 146 (62.7) | ||
Ambiguous | 2 (1.8) | 87 (37.3) | ||
Mural vascularity, n (%) | 32.6942 | < 0.001 | ||
Present | 12 (10.7) | 96 (41.2) | ||
Absent | 100 (89.3) | 137 (58.8) | ||
Luminal echogenicity, n (%) | ||||
Thread-like high echoic | 62 (55.4) | 0 (0) | ||
Anechoic | 2 (1.8) | 63 (27.0) | ||
Hypoechoic | 36 (32.1) | 58 (24.9) | 197.3082 | < 0.001 |
Isoechoic | 9 (8.0) | 13 (5.6) | ||
Hyperechoic, shadowing | 1 (0.9) | 33 (14.2) | ||
Complex echoic | 2 (1.8) | 66 (28.3) | ||
MOD (mm), n (%) | ||||
> 6 | 77 (68.8) | 231 (99.1) | 72.9712 | < 0.001 |
≤ 6 | 35 (31.2) | 2 (0.9) | ||
> 7 | 30 (26.8) | 229 (98.3) | 206.6222 | < 0.001 |
≤ 7 | 82 (73.2) | 4 (1.7) | ||
> 8 | 10 (8.9) | 212 (91.0) | 222.0152 | < 0.001 |
≤ 8 | 102 (91.1) | 21 (9.0) |
- Citation: Gu FW, Wu SZ. Added value of ratio of cross diameters of the appendix in ultrasound diagnosis of acute appendicitis. World J Gastrointest Surg 2024; 16(1): 21-28
- URL: https://www.wjgnet.com/1948-9366/full/v16/i1/21.htm
- DOI: https://dx.doi.org/10.4240/wjgs.v16.i1.21