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Effect of b value on ADC value difference between large- and small-scale regions of interest for MRI-detectable breast diseases ( n = 49)
| b value (s/mm 2 ) | Mean ADC difference | Standard deviation | 95% confidence interval | P -value |
|---|---|---|---|---|
| 400 | 0.07 | 0.15 | 0.03 to 0.12 | 0.001 |
| 600 | 0.07 | 0.13 | 0.03 to 0.11 | 0.001 |
| 800 | 0.05 | 0.12 | 0.01 to 0.08 | 0.008 |
ADC, apparent diffusion coefficient; MRI, magnetic resonance imaging.
