Table 4.
(a) Bland-Altman analysis across pulse sequences (Bias [95% confidence interval])
| ||||||
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Models | Quantity | b-values group | rFOV vs. ssEPI | msEPI vs. ssEPI | ||
Bias±1.96SD | p | Bias±1.96SD | p | |||
Mono-exponential | ADC × 10−3 (mm2/s) | Low b values | 0.00 [−0.21, 0.22] | 0.86 | −0.03 [−0.22, 0.15] | 0.12 |
High b-values | −0.02 [−0.21, 0.18] | 0.45 | −0.03 [−0.28, 0.22] | 0.30 | ||
Kurtosis | Dk ×10−3 (mm2/s) | Low b-values | 0.03 [−0.39, 0.44] | 0.60 | 0.00 [−0.36, 0.37] | 0.95 |
High b-values | 0.03 [−0.29, 0.35] | 0.49 | −0.09 [−0.58, 0.40] | 0.13 |
(b) Bland-Altman analysis across b-value groups (Bias [95% confidence interval])
| |||||||
---|---|---|---|---|---|---|---|
ssEPI | rFOV | msEPI | |||||
Models | Quantity | Low vs. High b-values | Low vs. High b-values | Low vs. High b-values | |||
Bias±1.96SD | p | Bias±1.96SD | p | Bias±1.96SD | p | ||
Mono-exponential | ADC × 10−3 (mm2/s) | −0.09 [−0.26, 0.08] | 0.00 | −0.11 [0.33, 0.10] | 0.00 | −0.09 [−0.25, 0.07] | 0.01 |
| |||||||
Kurtosis | Dk ×10−3 (mm2/s) | 0.03 [−0.32, 0.38] | 0.43 | 0.03 [−0.35, 0.42] | 0.46 | −0.06 [−0.40, 0.29] | 0.16 |
Low b-values group is b = [10, 50, 100, 200, 400, 600, 800] s/mm2;
High b-values group is b = [10, 50, 100, 400, 800, 1200, 1500] s/mm2.