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Table 4 Quantitative parameters derived from IVIM-MRI versus histologic findings in 168 lymph nodes with a short-axis diameter equal to or greater than 5 mm

From: Non-invasive MR assessment of the microstructure and microcirculation in regional lymph nodes for rectal cancer: a study of intravoxel incoherent motion imaging

Parameter Non-metastatic LNs Metastatic LNs P
(n = 90) (n = 78)
S (mm) 6.085 (1.710) 6.650 (2.890) < 0.001
L (mm) 6.835 (2.170) 7.850 (2.650) < 0.001
S/L 0.864 (0.130) 0.865 (0.090) 0.582
D(10−3·mm2/s) 0.583 (0.183) 0.723 (0.213) < 0.001
D*(10−3·mm2/s) 8.684 ± 4.245 7.798 ± 3.211 0.126
f 0.207 (0.133) 0.163 (0.079) < 0.001
  1. Note: Value with number in parentheses is median with interquartile range, value ± number is mean ± SD; S short-axis diameter, L long-axis diameter, S/L short- to long-axis diameter ratio, D pure diffusion coefficient, D* pseudo-diffusion coefficient, f perfusion factor