Table 2.
Statistical Analysis (mean ± SD) for Quantitative Imaging Metrics Using Tumor Size by US
| US Tumor Size | <1 cm (n = 3) | 1–2 cm (n = 14) | >2 cm (n = 7) | |||
| Aggressive features on US | YES(n = 2) | NO(n = 1) | YES(n = 6) | NO(n = 8) | YES(n = 5) | NO(n = 2) |
| Aggressive features on pathology | YES(n = 3) | NO(n = 0) | YES(n = 10) | NO(n = 4) | YES(n = 5) | NO(n = 2) |
| ADC × 10−3 (mm2/s) | (1.2 ± 0.7) | – | (1.32 ± 0.27)a | (1.9 ± 0.5)a | (1.7 ± 0.4) | (2.03 ± 0.06) |
| D × 10−3 (mm2/s) | (1.4 ± 0.7) | – | (1.27 ± 0.25)a | (2.1 ± 0.6)a | (1.7± 0.6) | (2.20 ± 0.08) |
| D* × 10−3 (mm2/s) | (2.61 ± 0.62) | – | (2.84 ± 0.06) | (2.95 ± 0.06) | (2.7 ± 0.3) | (2.98 ± 0.02) |
| f | (0.17 ± 0.05) | – | (0.21 ± 0.06) | (0.16 ± 0.05) | (0.18 ± 0.05) | (0.10 ± 0.02) |
| K | (0.7 ± 0.6) | – | (0.70 ± 0.26) | (0.48 ± 0.29) | (0.71 ± 0.28) | (0.64 ± 0.15) |
astatistical significance P < 0.05.