Dopplerfluxometria das artérias renais: valores normais das velocidades sistólica e diastólica e do índice resistivo nas artérias renais principais

Abstract

Dopplerfluxometry of renal arteries has been used to estimate renal perfusion in humans. The aim of this study was to use Dopplerfluxometry technique to calculate the resistive index of main renal arteries in dogs, measuring their systolic and diastolic blood flow velocities. Twenty (10 males, 10 females), adult mongrel dogs, were used in this study. The dogs were submitted to Doppler sonographic evaluation of left and right main renal arteries. The systolic and diastolic blood flow velocities, expressed (in centimeters per second) as mean and standard deviation were 79.96±8.82 and 28.86±5.11 in the right main renal artery and 80.22±6.99 and 29.62±4.14 in the left main renal artery. The value of resistive index expressed as mean ± standard deviation was 0.64±0.04 for the right main renal artery and 0.63±0.028 in the left main renal artery.