Value of ADC measurements for nodal staging after chemoradiation in locally advanced rectal cancer-a per lesion validation study.

These nodes with a relatively preserved lymphoid architecture showed low ADC values (1.16 ± 0.14 *10 −3 mm 2 /s) that were comparable to the benign nodes (1.19 ± 0.27 *10 −3 mm 2 /s, p = 0.49) but were lower compared with the nodes that were fully metastatic or necrotic (1.40 ± 0.28 *10 −3 mm 2 /s), although this difference did not reach statistical significance ( p = 0.08).

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