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Table 3 Spectral waveform analysis and diameter for normal profile in dogs (n = 12)

From: Ultrasound evaluation of common carotid artery blood flow in the Labrador retriever

  Average ± standard deviation Variation coefficient
Minimum Diastolic velocity 12.2 ± 4 cm/s 32.22%
Maximum Systolic velocity 75.8 ± 16 cm/s 21.35%
Diameter 0.544 ± 0.063 cm 11.70%
Pulsatility index 1.44 ± 0.20 13.90%
Resistance index 0.83 ± 0.07 8.44%