Table 2.
Mean and cut-off values along with sensitivity and specificity of various diffusion-weighted imaging and dynamic contrast-enhanced magnetic resonance imaging parameters for differentiating diabetic foot osteomyelitis (DFO) from acute Charcot
| Parameter | Biopsy (+) cases (19), mean values | Biopsy (–) cases (6), mean values | Cut-off value for diagnosing DFO | Sensitivity (%) | Specificity (%) |
|---|---|---|---|---|---|
| ADC (mm2/s) | 1.35 ± 0.24 × 10-3 | 1.64 ± 0.14 × 10-3 | < 1.57 × 10-3 | 88.2 | 80.0 |
| SI0 | 199.45 ± 33.00 | 132.68 ± 44.00 | > 143.30 | 94.7 | 83.2 |
| SI max | 470.50 ± 34.00 | 376.01 ± 86.00 | > 408.35 | 89.5 | 67.7 |
| WIR | 2.08 ± 0.40 | 0.93 ± 0.20 | > 1.21 | 82.0 | 83.3 |
| Type of curve | Type II (94.1%) | Type I (100%) |