Table 7.
Short-term test-retest reproducibility of ADC and IVIM parameters in various head and neck lesions
| 4b gating | 17b | ||
|---|---|---|---|
| ICCa | ADC | 0.997 (0.981 – 1) | 0.857 (−0.022 – 0.098) |
| f | 0.986 (0.901 – 0.998) | −0.402 (−9.018 – 0.804) | |
| D | 0.997 (0.978 – 1) | 0.813 (−0.334 – 0.974) | |
| D* | 0.664 (−1.400 – 0.953) | 0.500 – 0.257 – 0.930) | |
| CVb | ADC | 3.74 | 4.49 |
| f | 15.27 | 22.14 | |
| D | 5.67 | 8.19 | |
| D* | 29.24 | 41.80 | |
| BAAc | ADC | 3.7 (− 2.8, 10.2) | 22.0 (−65.1, 109.1) |
| f | −1.5 (− 25.3, 22.3) | −19.6 (−216.6, 177.4) | |
| D | 4.5 (− 3.2, 12.2) | 24.4 (−64.3, 113.1) | |
| D* | 13.0 (− 76.2, 102.3) | −18.0 (−243.1, 207.1) |
All numbers in brackets of aICC indicate the 95% confidence interval. The highest ICC value indicates the best reproducibility. The lowest mean of bCV (in %) indicates the best reproducibility. Mean Difference and 95% limits of agreement cBAA (in %) are shown. The narrowest value indicates the best reproducibility.