Table 4.
Worst curve type classifications compared at 4.5 and 7.5 minutes post-contrast.
| Worst Curve Types | N | 4.5 minutes N (%) |
7.5 minutes N (%) |
Chi-square P-value |
|---|---|---|---|---|
|
| ||||
| Benign Lesions | 74 | 0.97 | ||
| Persistent | 12 (16.2%) | 13 (17.6%) | ||
| Plateau | 20 (27.0%) | 20 (27.0%) | ||
| Washout | 42 (56.8%) | 41 (55.4%) | ||
|
| ||||
| Malignant Lesions | 206 | 0.23* | ||
| Persistent | 2 (1.0%) | 3 (1.5%) | ||
| Plateau | 21 (10.2%) | 12 (5.8%) | ||
| Washout | 183 (88.8%) | 191 (92.7%) | ||
|
| ||||
| Invasive Lesions | 171 | 0.51* | ||
| Persistent | 2 (1.2%) | 3 (1.8%) | ||
| Plateau | 16 (9.4%) | 10 (5.9%) | ||
| Washout | 153 (89.5%) | 158 (92.4%) | ||
|
| ||||
| DCIS | 35 | ** | ||
| Persistent | 0 (0%) | 0 (0%) | ||
| Plateau | 5 (14.3%) | 2 (5.7%) | ||
| Washout | 30 (85.7%) | 33 (94.3%) | ||
*
P-value calculated by Fischer’s Exact.
**
Low numbers for DCIS precluded worst curve calculations.