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Table 1 Associations between EMVI and clinical risk predictors in train cohort

From: Value of texture analysis based on dynamic contrast-enhanced magnetic resonance imaging in preoperative assessment of extramural venous invasion in rectal cancer

Characteristics

EMVI (−) (N = 27)

EMVI (+) (N = 17)

p

Age, mean ± SD, years

66.11 ± 12.24

61.12 ± 13.89

0.211

Sex, N (%)

  

0.638

 Male

22 (81.48)

12 (70.59)

 

 Female

5 (18.52)

5 (29.41)

 

BMI, mean ± SD, kg/m2

23.31 ± 2.88

21.84 ± 2.36

0.078

CEA

 

0.195

 

 ≤ 5 ng/mL, N (%)

22 (81.48)

10 (58.82)

 

 > 5 ng/mL, N (%)

5 (18.52)

7 (41.18)

 

CA19-9

  

0.870

 ≤ 34 U/mL, N (%)

24 (88.89)

14 (82.35)

 

 > 34 U/mL, N (%)

3 (11.11)

3 (17.65)

 

Distance, mean ± SD, mm

68.85 ± 25.62

81.18 ± 39.87

0.211

cT N (%)

  

0.001

 T1

1 (3.70)

0 (0)

 

 T2

7 (25.93)

1 (5.88)

 

 T3

17 (62.96)

9 (52.94)

 

 T4a

2 (7.41)

6 (35.29)

 

 T4b

0 (0)

1 (5.88)

 

cN N (%)

  

0.002

 Negative

23 (85.19)

6 (35.29)

 

 Positive

4 (14.81)

11 (64.71)

 

LN, median, N

0

5

< 0.001

MR-EMVI, N (%)

  

0.126

 Negative

26 (96.30)

13 (76.47)

 

 Positive

1 (3.70)

4 (23.53)

 

MR-CRM, N (%)*

  

0.675

 Negative

26 (96.30)

15 (88.24)

 

 Positive

1 (3.70)

2 (11.76)

 
  1. Associations between EMVI and clinical risk predictors in train cohort
  2. EMVI extramural vascular invasion, SD standard deviation, BMI body mass index, Distance the distance between the rectal cancer and anal edge, cT MRI-based T staging, cN MRI-based N staging, LN number of visible regional lymph nodes, MR-EMVI MRI-based EMVI assessment, MR-CRM MRI-based circumferential resection margin assessment
  3. *Pathological CRM in all patients were negative