Table 4 Inter-observer comparisons of apparent diffusion coefficient (ADC) values (× 10− 3 mm2/s) for malignant thyroid nodules obtained by the whole-volume, single-slice and solid-sample ROI methods by two independent readers
From: Effect of region of interest on ADC and interobserver variability in thyroid nodules
Parameters | Solid-sample ROI | Single-slice ROI | Whole-volume ROI | |||
|---|---|---|---|---|---|---|
Reader 1 | Reader 2 | Reader 1 | Reader 2 | Reader 1 | Reader 2 | |
ADC400 | 1.67 (1.47, 1.79) [1.00, 2.01] | 1.63 (1.53, 1.88) [1.22, 2.01] | 1.84 (1.65, 1.90) [1.25, 2.07] | 1.74 (1.63, 1.87) [1.35, 2.15] | 1.70 (1.57, 1.81) [1.23, 1.96] | 1.78 (1.61, 1.85) [1.33, 2.04] |