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Table 4 MRI characteristics of the DCIS, mIDC, and IDC group

From: The role of MRI and clinicopathologic features in predicting the invasive component of biopsy-confirmed ductal carcinoma in situ

 

DCIS (n = 101)

mIDC (n = 49)

IDC (n = 44)

P value

Mass (n = 87)

DCIS (n = 50)

mIDC (n = 18)

IDC (n = 19)

 

 MR-measured tumor size (cm)

1.1 [0.9–1.6]

2.2 [0.9–3.3]

2.2 [1.6–5.1]

< 0.001

 Shape

   

0.001

  Oval or round

28 (56.0)

4 (22.2)

2 (10.5)

 

  Irregular

22 (44.0)

14 (77.8)

17 (89.5)

 

 Margin

   

0.001

  Circumscribed

21 (42.0)

3 (16.7)

0 (0.0)

 

  Not-circumscribed

29 (58.0)

15 (83.3)

19 (100.0)

 

 Enhancement pattern

   

0.001

  Homogeneous

19 (38.0)

2 (11.1)

0 (0.0)

 

  Heterogeneous

26 (52.0)

12 (66.7)

11 (57.9)

 

  Rim

5 (10.0)

4 (22.2)

8 (42.1)

 

 Intratumoral high SI on T2WI

6 (12.2)

4 (22.2)

11 (61.1)

< 0.001

 Peritumoral edema on T2WI

0 (0.0)

3 (16.7)

6 (33.3)

< 0.001

NME (n = 107)

DCIS (n = 51)

mIDC (n = 31)

IDC (n = 25)

 

 MR-measured tumor size (cm)

3.8 [2.3–5.0]

4.9 [3.1–6.3]

5.8 [4.2–6.6]

0.002

 Distribution

   

0.075

  Segmental

34 (66.7)

26 (83.9)

19 (76.0)

 

  Linear

2 (3.9)

0 (0.0)

0 (0.0)

 

  Focal

10 (19.6)

3 (9.7)

2 (8.0)

 

  Regional

4 (7.8)

2 (6.5)

0 (0.0)

 

  Diffuse

1 (2.0)

0 (0.0)

4 (16.0)

 

 Enhancement pattern

   

0.001

  Homogeneous

17 (33.3)

0 (0.0)

3 (12.0)

 

  Heterogeneous

16 (31.4)

5 (16.1)

4 (16.0)

 

  Clumped

14 (27.5)

22 (71.0)

14 (56.0)

 

  Clustered ring

4 (7.8)

4 (12.9)

4 (16.0)

 

Kinetic feature (n = 194)

   

0.763

 Initial enhancement

  Slow

2 (2.0)

2 (4.1)

2 (4.5)

 

  Medium

5 (5.0)

1 (2.0)

2 (4.5)

 

  Fast

94 (93.1)

46 (93.9)

40 (90.9)

 

 Delayed enhancement

   

0.383

  Persistent

13 (12.9)

5 (10.2)

4 (9.1)

 

  Plateau

16 (15.8)

4 (8.2)

3 (6.8)

 

  Washout

72 (71.3)

40 (81.6)

37 (84.1)

 

 Peak enhancement (%)

171.0 [127.5–220.0]

206.0 [153.0–282.5]

230.0 [190.5–294.0]

< 0.001

 Persistent component (%)

60.0 [28.0-, 84.0]

70.0 [49.5, 86.5]

54.5 [36.0–76.0]

0.205

 Plateau component (%)

28.0 [12.5–43.0]

24.0 [10.5–37.0]

30.0 [19.0–40.5]

0.343

 Washout component (%)

5.0 [0.1–16.0]

2.0 [0.3–10.0]

7.5 [1.3–19.8]

0.254

  1. Data indicate the number of lesions (with percentages in parentheses) or the median values with range.
  2. DCIS ductal carcinoma in situ; mIDC microinvasive ductal carcinoma; IDC invasive ductal carcinoma; SI signal intensity; T2WI T2-weighted image; NME nonmass enhancement