Table 3.
Predominant curve type classifications compared at 4.5 and 7.5 minutes post-contrast.
| Predominant Curve Types | N | 4.5 minutes N (%) |
7.5 minutes N (%) |
Chi-square P-value |
|---|---|---|---|---|
|
| ||||
| Benign Lesions | 74 | |||
| Persistent | 54 (73.0 %) | 55 (74.3%) | ||
| Plateau | 12 (16.2 %) | 7 (9.5%) | ||
| Washout | 8 (10.8 %) | 12 (16.2%) | 0.35 | |
|
| ||||
| Malignant Lesions | 206 | |||
| Persistent | 109 (52.9%) | 111 (53.9%) | ||
| Plateau | 64 (31.1%) | 27 (13.1%) | ||
| Washout | 33 (16.0%) | 68 (33.0%) | <0.0001 | |
|
| ||||
| Invasive Lesions | 171 | |||
| Persistent | 83 (48.5%) | 83 (48.5%) | ||
| Plateau | 56 (32.8%) | 24 (14.0%) | ||
| Washout | 32 (18.7%) | 64 (37.4%) | <0.0001 | |
|
| ||||
| DCIS Lesions | 35 | |||
| Persistent | 26 (74.3%) | 28 (80.0%) | ||
| Plateau | 8 (22.9%) | 3 (8.6%) | ||
| Washout | 1 (2.9%) | 4 (11.4%) | 0.14* | |
*
P-value calculated by Fischer’s Exact.