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Table 2 Sonographic blood flow parameters of the left brachial artery before and after the operation

From: An unusual case of arteriovenous fistula-related venous hypertension: sonographic detection of a culprit perforating vein with movie and compact review

  Pre-op. Post-op.
Flow volume* (mL/min) 860 905
Resistive index 0.51 0.53
Pulsatility index 0.72 0.80
  1. Values are expressed as the median of three consecutive measurements
  2. *[time-averaged mean velocity] × π[vessel radius]2