Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Variability of Doppler ultrasound measurements of hindlimb blood flow in conscious horses
Autore:
Raisis, AL; Young, LE; Meire, HB; Taylor, PM; Walsh, K; Lekeux, P;
Indirizzi:
Anim Hlth Trust, Ctr Equine Studies, Newmarket CB8 8JH, Suffolk, England Anim Hlth Trust Newmarket Suffolk England CB8 8JH 8 8JH, Suffolk, England Univ London Kings Coll Hosp, Dept Radiol, London SE5 9RS, England Univ London Kings Coll Hosp London England SE5 9RS ndon SE5 9RS, England Univ Cambridge, Dept Clin Vet Med, Cambridge CB3 0ES, England Univ Cambridge Cambridge England CB3 0ES Med, Cambridge CB3 0ES, England
Titolo Testata:
EQUINE VETERINARY JOURNAL
fascicolo: 2, volume: 32, anno: 2000,
pagine: 125 - 132
SICI:
0425-1644(200003)32:2<125:VODUMO>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
VOLUME FLOW; ULTRASONOGRAPHY; FLOWMETRY; ACCURACY; ARTERY; FETUS;
Keywords:
horse; Doppler ultrasound; hindlimb blood flow; variability;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Raisis, AL Anim Hlth Trust, Ctr Equine Studies, POB 5, Newmarket CB8 8JH, Suffolk, England Anim Hlth Trust POB 5 Newmarket Suffolk England CB8 8JH England
Citazione:
A.L. Raisis et al., "Variability of Doppler ultrasound measurements of hindlimb blood flow in conscious horses", EQUINE V J, 32(2), 2000, pp. 125-132

Abstract

Ultrasonography of the left and right femoral artery and vein was performed in 5 conscious horses. Velocity waveforms, recorded using low pulse repetition frequency, were used to calculate time-averaged mean velocity (TAV), velocity of component a (TaVa), velocity of component b (TaVb) and volumetric how Waveform analysis included calculation of early diastolic deceleration slope (EDDS) and pulsatility index (PI) and subjective description of the waveform. Measurements were recorded at monthly intervals for 6 months. The repeated measurements were used to determine the within-horse variation. Horses were then anaesthetised with halothane and the same measurements recorded 60 min after induction. Differences between measurements recorded inconscious and anaesthetised horses were determined. Within-horse variability for diameters of femoral arteries and veins was small (CV<10%). Within variability for all other measurements was marked (CV>11%), with within-horse variability being the largest for femoral venous flow (CV>35%). Source of variability was measurement error and biological variation. Despite variability in conscious horses it was possible to detect changes in blood flow during anaesthesia. In the femoral arteries, volumetric flow was lower and EDDS and PI was higher in anaesthetised horses. In the femoral veins, volumetric flow was also lower in anaesthetised horses. Therefore Doppler ultrasound appears to be a useful technique for studying blood flow in conscious and anaesthetised horses.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/08/20 alle ore 17:03:38