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Figure 5 (A) Interactive dot diagram of diastolic velocity (DV) in patients with coarctation (group 1 prestenting) and in patients without significant coarctation (post-stenting/post-surgical group). Diastolic velocity >193 cm/s has a sensitivity (Sens) of 100% and a specificity (Spec) of 100%. (B) Interactive dot diagram of DV/systolic velocity ratio in coarctation (CoA) patients (group1 pre-stenting) and in patients without significant coarctation (post-stenting/post-surgical group). Diastolic velocity/systolic velocity ratio of >0.53 has a sensitivity of 100% and a specificity of 96%.