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Table 2 Intra- and interobserver reproducibility of measurements of thyroid nodule IVIM parameters with different ROI methods

From: Intravoxel incoherent motion and ADC measurements for differentiating benign from malignant thyroid nodules: utilizing the most repeatable region of interest delineation at 3.0 T

Parameters

W-L ROI ICC (95% CI)

S-S ROI ICC (95% CI)

Intraobserver

Interobserver

Intraobserver

Interobserver

D

0.986 (0.975–0.992)

0.970 (0.946–0.984)

0.908 (0.834–0.949)

0.920 (0.855–0.956)

f

0.929 (0.873–0.961)

0.951 (0.911–0.973)

0.701 (0.460–0.835)

0.846 (0.722–0.915)

D*

0.902 (0.823–0.946)

0.894 (0.808–0.941)

0.510 (0.114–0.729)

0.562 (0.208–0.758)

  1. D (× 10− 3 mm2/s), D* (× 10− 3 mm2/s)
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Cancer Imaging

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