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Table 3 Associations between EMVI and clinical risk predictors in test 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 = 13)

EMVI (+) (N = 5)

Age, mean ± SD, years

69.5 ± 9.9

62.6 ± 13.8

Sex, N (%)

 Male

11 (84.62)

4 (80)

 Female

2 (15.38)

1 (20)

BMI, mean ± SD, kg/m2

21.9 ± 1.9

21.6 ± 2.5

CEA

 ≤ 5 ng/mL, N (%)

6 (46.2)

5 (100)

 > 5 ng/mL, N (%)

7 (53.8)

0 (0)

CA19-9

 ≤ 34 U/mL, N (%)

12 (92.3)

5 (100)

 > 34 U/mL, N (%)

1 (7.7)

0 (0)

Distance, mean ± SD, mm

63.3 ± 23.1

78.2 ± 15.3

cT N (%)

 T1

0 (0)

0 (0)

 T2

3 (23.1)

2 (40)

 T3

7 (53.8)

3 (60)

 T4a

3 (23.1)

0 (0)

 T4b

0 (0)

0 (0)

cN N (%)

 Negative

2 (15.4)

2 (40)

 Positive

11 (84.6)

3 (60)

LN, median, N

1

2

MR-EMVI, N (%)

 Negative

10 (76.9)

5 (100)

 Positive

3 (23.1)

0 (0)

MR-CRM, N (%)*

 Negative

13 (100)

5 (100)

 Positive

0 (0)

0 (0)

  1. Associations between EMVI and clinical risk predictors in test 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