Spectral waveform analysis of major arteries in conscious dogs by Doppler ultrasonography

Lee, Kichang; Choi, Mincheol; Yoon, Junghee; Jung, Juhyun

doi:10.1111/j.1740-8261.2004.04027.x

Cited by 25 publications

(30 citation statements)

References 23 publications

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“…In this study the diagram of Doppler spectra of the blood flow in the common femoral artery obtained in young and old conscious healthy dogs was triphasic. This result agrees with those reported for large high-resistance arteries in different ages (Fernández del Palacio et al 2003;Lee et al 2004;Nogueira et al 2005).…”

Section: Discussionsupporting

confidence: 95%

“…It has been determined that the true velocity-values of the blood flow in the femoral artery can only be obtained, if the Doppler angle does not exceed 60 0 (Solomon et al 1995;Szatmári et al 2001;Fernández del Palacio et al 2003;Lee et al 2004;Nogueira et al 2005). The Doppler velocities were not significantly different in the present study, although their mean values have been lower in old healthy dogs.…”

Section: Discussionmentioning

confidence: 98%

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Evaluation of aging on muscle blood flow in conscious healthy dogs by duplex Doppler ultrasonography

Nogueira

Muzzi

2010

Vet Res Commun

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According to a study conducted on a population of 9,248 subjects, cardiac diseases are the second most prevalent cause of death in the dog. During the last decades, a common scenario has been the increase on life expectancy of dogs. The exact relationship between the negative modifications of cardiovascular function and the development of specific cardiovascular diseases is difficult to ascertain, and also, the effect of age per se on vascular impedance is important. It may result in limited cardiovascular reserve under conditions of increase demand in senescent animals. To evaluate the effect of age on the peripheral vasculature specifically, the objective of this study was to compare parameters of the regional blood flow as well as compliance and resistance indexes in the femoral arterial system of younger and older conscious healthy dogs by duplex Doppler ultrasonography. The data were collected from 16 mixed-breed dogs divided into two groups: young and old healthy dogs. In all dogs Doppler spectra blood flow patterns of the femoral artery were triphasic. Significant differences were not found between the parameters measured for young and old groups. Despite this, the average value of femoral flow volume in the older group was approximately 50% lower than the younger group. This finding could play an important role in limiting exercise response with age. In order to validate these speculations, further studies should be performed in aged dogs.

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Section: Discussionsupporting

confidence: 95%

Section: Discussionmentioning

confidence: 98%

Evaluation of aging on muscle blood flow in conscious healthy dogs by duplex Doppler ultrasonography

Nogueira

Muzzi

2010

Vet Res Commun

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“…In 2004, Lee et al observed an average systolic peak velocity of 115 ± 17 cm/s and an average final diastolic velocity of 39 ± 7 cm/s in the common carotid artery of 1-year-old beagles. They observed that the caudal velocity was generally higher than the cranial velocity [9,11]. …”

Section: Introductionmentioning

confidence: 99%

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

et al. 2013

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BackgroundDoppler ultrasound (DUS) examination provides quantitative and qualitative information concerning the blood flow in veins and arteries, enabling their morphological evaluation and the collection of hemodynamic data. Dogs and cats as well as humans may display neurological signs of brain hypoperfusion secondary to common carotid alterations. Hence, DUS examination might aid in the differential diagnosis of neurological disorders of ischemic origin, among other causes. The objective of this study was to register normal values for systolic peak velocity, minimum diastolic velocity, diameter and resistance index of both common carotid arteries of 12 healthy Labrador retriever dogs between 2 and 5 years of age. By gathering these values, we might be able to improve the sensitivity of hemodynamic studies in clinically important brain disorders.ResultsThere were no statistical differences between the values for the right and left vessels: the systolic peak velocity was 75.8 ± 16 cm/s, minimum diastolic velocity was 12.2 ± 4 cm/s, common carotid diameter was 0.545 ± 0.063 cm, and resistance index was 0.83 ± 0.07.ConclusionsThe results of this study might be used to establish normal parameters for Labrador retriever dogs and thus help in the diagnosis of neurological disorders associated with alterations of the carotid arteries. Similar studies must be performed to evaluate the same parameters in other dog breeds of different sizes and skull conformations.

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“…Doppler ultrasound has become an accepted and routine method for the investigation of blood haemodynamics in both humans and animals since it can rapidly and non-invasively provide information regarding many vascular diseases (Lee et al 2004). The technique provides dynamic real-time anatomical vascular information; moreover, it allows for the detection of the presence, direction, and type of blood flow into a vessel (Szatmari et al 2001).…”

mentioning

confidence: 99%

The use of colour Doppler imaging to determine the effects of administration of butorphanol, medetomidine and ketamine on indices of feline ocular impedance

Vrbovska¹,

Horňáková²,

Drahovska³

et al. 2017

Vet. Med. - Czech

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Doppler impedance indices, such as the resistive index (RI) and pulsatility index (PI), are commonly used to characterise resistance to the flow in the vascular system. Chemical restraint can potentially affect these indices, although in some patients such restraint is necessary before ultrasonographic examination. The objective of this study was to compare ocular vascular velocity parameters, measured using Doppler imaging, in healthy conscious cats and in cats after administration of a combination of anaesthetics (butorphanol, medetomidine and ketamine). Twelve healthy cats of different breeds and both sexes were studied using Doppler imaging. The long posterior ciliary arteries in both eyes were examined. Mean comparison tests (paired and unpaired t-test) were used to determine whether any significant differences existed between right and left ocular indices and between sexes. A correlation study was applied between RI, PI and body weight. There were no significant differences in RI and PI between left and right eyes. Values also did not significantly differ among males and females. The RI and PI in long posterior ciliary arteries of cats anaesthetised with butorphanol, medetomidine and ketamine were significantly lower than those of healthy conscious cats. There was no correlation between impedance indices and body weight.

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Spectral waveform analysis of major arteries in conscious dogs by Doppler ultrasonography

Cited by 25 publications

References 23 publications

Evaluation of aging on muscle blood flow in conscious healthy dogs by duplex Doppler ultrasonography

Evaluation of aging on muscle blood flow in conscious healthy dogs by duplex Doppler ultrasonography

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

The use of colour Doppler imaging to determine the effects of administration of butorphanol, medetomidine and ketamine on indices of feline ocular impedance

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