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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