Table 1.
Relationship between morphological features, kinetic patterns of enhancement and clinicopathological characteristics of patients
| Morphological features | N° | Kinetic features | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Margin | Enhancement internal | Peak of maximum enhancement | % of maximun enhancement < 2' | Curve Type | |||||||||
| Characteristics | N°* | A | B | Hom | Het/Rim | < 2' | ≥ 2' | ≤ 150% | > 150% | I | II | III | |
| Total cases | 64 | 68 | |||||||||||
| Menopausal status | |||||||||||||
| Premenopausal | 26 | 4 (15.4) | 22 (84.6) | 4 (15.4) | 22 (84.6) | 29 | 5 (17.2) | 24 (82.8) | 14 (48.3) | 15 (51.7) | 2 (6.9) | 11 (37.9) | 16 (55.2) |
| Postmenopausal | 38 | 12 (31.6) | 26 (68.4) | 8 (21.1) | 30 (78.9) | 39 | 12 (30.8) | 27 (69.2) | 25 (64.1) | 14 (35.9) | 3 (7.7) | 13 (33.3) | 23 (59) |
| Tumor size | p = 0.015 | ||||||||||||
| T1 (<2 cm) | 42 | 14 (33.3) | 28 (66.7) | 12 (28.6) | 30 (71.4) | 43 | 10 (23.2) | 33 (76.8) | 28 (65.1) | 15 (34.9) | 4 (9.3) | 13 (30.2) | 26 (60.5) |
| ≥ T2 (≥ 2 cm) | 22 | 2 (9.1) | 20 (90.9) | 0 | 22 (100) | 25 | 7 (28) | 18 (72) | 11 (44) | 14 (56) | 1 (4) | 11 (44) | 13 (52) |
| Nodal status | |||||||||||||
| N (-) | 35 | 9 (25.7) | 26 (74.3) | 7 (20) | 28 (80) | 35 | 10 (28.6) | 25 (71.4) | 20 (57.1) | 15 (42.9) | 3 (8.6) | 10 (28.6) | 22 (62.8) |
| N (+) | 29 | 8 (27.6) | 21 (72.4) | 6 (20.7) | 23 (79.3) | 33 | 8 (24.2) | 25 (75.8) | 19 (57.6) | 14 (42.4) | 2 (6.1) | 15 (45.4) | 16 (48.5) |
| Histological grade | |||||||||||||
| I | 22 | 6 (27.3) | 16 (72.7) | 5 (22.7) | 17 (77.3) | 24 | 4 (16.7) | 20 (83.3) | 14 (58.3) | 10 (41.7) | 4 (16.6) | 10 (41.7) | 10 (41.7) |
| II | 24 | 6 (25) | 18 (75) | 5 (20.8) | 19 (79.2) | 26 | 7 (26.9) | 19 (73.1) | 13 (50) | 13 (50) | 1 (3.8) | 8 (30.8) | 17 (65.4) |
| III | 18 | 4 (22.2) | 14 (77.8) | 2 (11.1) | 16 (88.9) | 18 | 6 (33.3) | 12 (66.7) | 12 (66.7) | 6 (33.3) | 0 | 6 (33.3) | 12 (66.7) |
| Vascular invasion | p = 0.016 | ||||||||||||
| Yes | 27 | 8 (29.6) | 19 (70.4) | 4 (14.8) | 23 (85.2) | 29 | 6 (20.7) | 23 (79.3) | 22 (75.9) | 7 (24.1) | 2 (6.9) | 11 (37.9) | 16 (55.2) |
| No | 37 | 8 (21.6) | 29 (78.4) | 8 (21.6) | 29 (78.4) | 39 | 11 (28.2) | 28 (71.8) | 17 (43.6) | 22 (56.4) | 3 (7.7) | 13 (33.3) | 23 (59) |
| Mitotic Index | p = 0.036 | p = 0.03 | |||||||||||
| ≤ 5 | 29 | 6 (20.7) | 23 (79.3) | 5 (17.2) | 24 (82.8) | 33 | 4 (12.1) | 29 (87.9) | 14 (42.4) | 19 (57.6) | 4 (12.1) | 13 (39.4) | 16 (48.5) |
| >5 | 35 | 10 (28.6) | 25 (71.4) | 7 (20) | 28 (80) | 35 | 13 (37.1) | 22 (62.9) | 25 (71.4) | 10 (28.6) | 1 (2.9) | 11 (31.4) | 23 (65.7) |
| Peritumor inflammation | p = 0.042 | ||||||||||||
| Yes | 36 | 10 (27.8) | 26 (72.2) | 7 (19.4) | 29 (80.6) | 37 | 11 (29.7) | 26 (70.3) | 23 (62.2) | 14 (37.8) | 1 (2.7) | 10 (27) | 26 (70.3) |
| No | 28 | 6 (21.4) | 22 (78.6) | 5 (17.9) | 23 (82.1) | 31 | 6 (19.4) | 25 (80.6) | 16 (51.6) | 15 (48.4) | 4 (12.9) | 14 (45.2) | 13 (41.9) |
* Four cases showed a non-nodular enhancement, so the morphological features were analyzed in only 64 cases, and the kinetic features in all 68 cases. Data are expressed as number of cases (percentage).
Abbreviations: A, well-defined (regular); B, ill-defined (irregular or spiculated); Hom: homogeneous; Het: heterogeneous.