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Table 2 MRI characteristics of patients with SOC from institution A

From: A prediction nomogram for suboptimal debulking surgery in patients with serous ovarian carcinoma based on MRI T1 dual-echo imaging and diffusion-weighted imaging

Characteristics

Training set, n = 143

Internal validation set, n = 62

p value

Distribution

0.007

 Unilateral

77 (53.85)

21 (33.87)

 

 Bilateral

66 (46.15)

41 (66.13)

 

Mass feature

0.8876

 Solid

79 (55.24)

34 (54.84)

 

 Complex cystic and solid

40 (27.97)

16 (25.81)

 

 Mainly cystic

24 (16.78)

12 (19.35)

 

Relationship between the sigmoid colon/rectum and mass

0.9504

 0 (clear, a hook edge existed)

27 (18.88)

11 (17.74)

 

 The hook edge disappeared

  1 (Close)

19 (13.29)

7 (11.29)

 

  2 (Bridge sign)

61 (42.66)

29 (46.77)

 

  3 (Fusion)

36 (25.17)

15 (24.19)

 

Bladder invaded

0.4569

 No

132 (92.31)

59 (95.16)

 

 Yes

11 (7.69)

3 (4.84)

 

Metastases of distant organs

0.7651

 No

131 (91.61)

56 (90.32)

 

 Yes

12 (8.39)

6 (9.68)

 

Diaphragmatic metastasis

0.8327

 No

99 (69.23)

42 (67.74)

 

 Yes

44 (30.77)

20 (32.26)

 

Nodules or masses implanted on the omentum/ peritoneum

0.9487

 No

34 (23.78)

15 (24.19)

 

 Yes

109 (76.22)

47 (75.81)

 

Hydroureter

0.385

 No

141 (98.6)

60 (96.77)

 

 Yes

2 (1.4)

2 (3.23)

 

Retroperitoneal lymphadenectasis

0.2928

 No

131 (91.61)

60 (96.77)

 

 Yes

12 (8.39)

2 (3.23)

 

Amount of ascites

0.9733

 No ascites or small

55 (38.46)

24 (38.71)

 

 Medium to large

88 (61.54)

38 (61.29)

 
  1. Chi-squared test