Pulsed wave-Doppler ultrasonographic evaluation of the common carotid artery in the resting horse: physiologic data.
A pulsed wave-Doppler ultrasonographic evaluation of common carotid arterial blood flow was carried out on 63 healthy Italian Saddlebred horses. Vessel diameter and tracing morphology were evaluated and blood flow parameters (systolic, diastolic and mean velocity, acceleration and deceleration of the systolic wave, carotid pulse volume) were calculated and correlated with class variables (sex, age and body weight). On the basis of the presence of an incisure in the ascending branch of the systolic curve, subjects were divided in two groups: one with a bifid systolic curve and the other with a monophasic aspect. Correlations between: 1) diameter of the vessel and body weight and 2) carotid pulse volume and flow velocity (systolic, diastolic and mean) were found. A greater systolic pulse volume was found in male subjects, in subjects with greater body weight and in those which had a monophasic systolic wave.
Cipone
M
M
Istituto di Patologia Speciale e Clinica Medica Veterinaria, Facoltà di Medicina Veterinaria, Università degli Studi di Bologna, Italy.
Pietra
M
M
Gandini
G
G
Boari
A
A
Guglielmini
C
C
Venturoli
M
M
D000054:Acceleration; D000367:Age Factors; D000818:Animals; D001783:Blood Flow Velocity / Q000662:veterinary; D001810:Blood Volume / Q000662:veterinary; D001835:Body Weight; D002302:Cardiac Output; D017536:Carotid Artery, Common / Q000033:anatomy & histology / Q000000981:diagnostic imaging* / Q000502:physiology; D003654:Deceleration; D003971:Diastole; D005260:Female; D006339:Heart Rate; D006736:Horses / Q000033:anatomy & histology / Q000502:physiology*; D007601:Jugular Veins / Q000033:anatomy & histology / Q000000981:diagnostic imaging / Q000502:physiology; D008297:Male; D011674:Pulse; D012039:Regional Blood Flow; D012737:Sex Factors; D013599:Systole; D018617:Ultrasonography, Doppler, Pulsed / Q000662:veterinary*