Doppler studies of abdominal aorta and caudal vena cava in healthy dogs

In this study, Duplex Doppler waveforms of the major abdominal vessels [abdominal aorta (AA) and caudal vena cava (CVC)] were examined by Doppler ultrasound and Doppler indices were established in normal dogs using pulse wave Doppler ultrasound. Fifteen dogs (10 males, 5 females) considered healthy by physical examination, haematobiochemical profile, urinalysis, and ultrasonography were included. AA and CVC were scanned by pulsed Doppler ultrasonography to calculate Resistive Index (RI) and Pulsatility Index (PI). The mean±SE value of RI for AA was 0.94±0.16 and for CVC was 0.39±0.05. The mean±SE value of PI for AA was 4.95±0.80 and for CVC was 1.61±0.62.