Table 3.
Comparison of ADC Histogram Parameters Between the LN− and LN+ Groups
| Cut-Off Value | LN+ | LN− | p value | |
|---|---|---|---|---|
| P5 | ≤0.71×10–3 s/mm2 | 30 (48.4%) | 71 (62.8%) | 0.064 |
| >0.71×10–3 s/mm2 | 32 (51.6%) | 42 (37.2%) | ||
| P10 | ≤0.80×10–3 s/mm2 | 40 (64.5%) | 90 (79.6%) | 0.028 |
| >0.80×10–3 s/mm2 | 22 (35.5%) | 23 (20.4%) | ||
| P25 | ≤0.89×10–3 s/mm2 | 35 (56.5%) | 86 (76.1%) | 0.007 |
| >0.89×10–3 s/mm2 | 27 (43.5%) | 27 (23.9%) | ||
| P50 (Median) | ≤0.98×10–3 s/mm2 | 24 (38.7%) | 64 (56.6%) | 0.023 |
| >0.98×10–3 s/mm2 | 38 (61.3%) | 49 (43.4%) | ||
| P75 | ≤1.13×10–3 s/mm2 | 17 (27.4%) | 51 (45.1%) | 0.021 |
| >1.13×10–3 s/mm2 | 45 (72.6%) | 62 (54.9%) | ||
| P90 | ≤1.58×10–3 s/mm2 | 48 (77.4%) | 100 (89.3%) | 0.035 |
| >1.58×10–3 s/mm2 | 14 (22.6%) | 12 (10.7%) | ||
| P95 | ≤1.75×10–3 s/mm2 | 47 (75.8%) | 99 (87.6%) | 0.045 |
| >1.75×10–3 s/mm2 | 15 (24.2%) | 14 (12.4%) | ||
| Mean | ≤1.08×10–3 s/mm2 | 33 (53.2%) | 86 (76.1%) | 0.002 |
| >1.08×10–3 s/mm2 | 29 (46.8%) | 27 (23.9%) | ||
| Skewness | >0.534* | 49 (79.0%) | 82 (72.6%) | 0.346 |
| ≤0.534* | 13 (21.0%) | 31 (27.4%) | ||
| Kurtosis | >3.122* | 46 (74.2%) | 94 (83.2%) | 0.155 |
| ≤3.122* | 16 (25.8%) | 19 (16.8%) | ||
| CV | >0.249* | 29 (46.8%) | 71 (62.8%) | 0.040 |
| ≤0.249* | 33 (53.2%) | 42 (37.2%) |
Notes: Data expressed as n (%). Significant p values are in bold.
Abbreviations: LN+, lymph node positive; LN−, lymph node negative; ADC, apparent diffusion coefficient; P5, 5th percentile of ADC value; P10, 10th percentile of ADC value; P75, 75th percentile of ADC value; P90, 90th percentile of ADC value; P95, 95th percentile of ADC value; CV, coefficient of variation.