Accuracy of MRI for nodal restaging in rectal cancer: a retrospective study of 166 cases.
Sayali PangarkarKunal MistryAmit ChoudhariVasundhara SmritiAnkita AhujaAparna KatdareReena EngineerVikas OstwalMukta RamadwarAvanish SaklaniAkshay D BahetiPublished in: Abdominal radiology (New York) (2020)
MRI has good negative predictive value, poor positive predictive value and moderate accuracy in nodal restaging. The cut-off of 5.5 mm demonstrated in our study is close to the SAR cut-off of 5 mm in the post-treatment setting. MRI accuracy is lower in patients with mucinous nodes.