Are Doppler ultrasonography parameters symmetric between the right and left kidney?

Ansarin, Khalil; Bavil, Abolhassan Shakeri; Ghabili, Kamyar; Shoja, Mohammadali Mohajel; Khosroshahi, Hamid T.; Hajipour, Babak; Tubbs, R. Shane; Parvizi, Mojtaba

doi:10.2147/ijgm.s14119

Cited by 10 publications

(8 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Intrarenal RI values did not vary between the right and left kidney. This finding is in agreement with the renal arteries of humans [8,11], canines [1], and felines [1,12]. In contrast, Tipisca et al [4] reported significantly higher RI values in the left than right kidneys in healthy cats.…”

Section: Discussionsupporting

confidence: 77%

Changes in Renal Resistive Index Values in Healthy Puppies during the First Months of Life

Agut¹,

Soler²,

Palacio³

2020

Animals

View full text Add to dashboard Cite

The purpose of this study is to establish renal resistive index (RRI) of normal kidneys in puppies aged from newborn to 20 weeks of age and to determine the age at which RRI reaches adult dog values. Six healthy adult intact beagles and six puppies from 1 day after birth to 20 weeks of age were used. In the adult dogs, the ultrasonographic scans were performed once, and in the puppies, the ultrasonographic studies were performed on the first day after birth and at 1, 2, 3, 4, 6, 8, 12, 16, and 20 weeks of age. RRI was obtained at the interlobular and arcuate arteries in each kidney. There were no statistical differences between the RRI values obtained between the right and left kidney nor between intrarenal arteries (interlobar and arcuate). The RRI was the highest during the first weeks of life, after which it declined gradually with increasing age reaching adult dog values at 12 weeks of age. In conclusion, the normal mean RRI is age dependent in dogs. Twelve weeks can be regarded as the age at which adult mean RRI criteria can be applied to puppies.

show abstract

Section: Discussionsupporting

confidence: 77%

Changes in Renal Resistive Index Values in Healthy Puppies during the First Months of Life

Agut¹,

Soler²,

Palacio³

2020

Animals

View full text Add to dashboard Cite

show abstract

“…To the best of our knowledge, in other species there have been no consistent differences in RI reported between the right and left kidney in physiological conditions. Doppler investigation of right vs. left kidney had no consistently significant effect on RI in humans, but very occasionally on other Doppler parameters [22,23]. Measurement of intrarenal RI in the right and left kidney did not influence the results in healthy dogs and cats in earlier studies [15,24], while Tipisca et al (2016) [8] reported significantly higher RI in the left vs. the right kidney in healthy cats.…”

Section: Overall Horsesmentioning

confidence: 75%

“…The GFR is a measure of functional renal mass [27], but notably GFR and blood flow, and so the RI, are not comparable measures of renal function [28] and they cannot be directly linked at this point. In humans, asymmetry in renal blood flow has been reported between the kidneys in normal subjects and in hypertensive patients, with no convincing anatomic-physiological explanation [23].…”

Section: Overall Horsesmentioning

confidence: 99%

Doppler evaluation of renal resistivity index in healthy conscious horses and donkeys

Freccero¹,

Petrucelli²,

Cipone³

et al. 2020

PLoS ONE

View full text Add to dashboard Cite

The renal resistive index (RRI) is used as a measurement of downstream resistance in arteries. The aim of this study was to assess the RRI of the arcuate arteries by pulsed-wave Doppler ultrasonography in healthy conscious horses and donkeys, and to verify any differences related to age, breed, bodyweight (BW) or body condition (BCS). Thirty-three healthy conscious horses and nine donkeys had their systolic and diastolic flow velocities at the level of the arcuate arteries estimated by pulsed-wave Doppler ultrasound, and the RRI was calculated. The relationship of RRI with age, breed (Trotters vs. other breeds), bodyweight (BW), and body condition score (BCS) were evaluated. PW Doppler evaluation of RRI was successfully applied in most of the horses, but to date not in the donkeys. In horses, median RRI values for the right kidney (0.58±0.006) were statistically higher than for the left (0.51 ±0.006). For the donkeys the values were comparable. There was no significant difference in RRI between horses younger or older than 15 years, and between breeds in horses. No correlation with age, BW or BCS was found in either horses or donkeys.

show abstract

“…The Doppler signals were detected through the temporal window for the middle cerebral artery, anterior cerebral artery and two segments of the posterior cranial artery (PCA 1 , PCA 2 ), through the suboccipital window for the vertebral arteries and basilar artery, and through the cervical window for the internal carotid arteries 14. Mean blood flow velocity, pulsatility index, and resistance index were recorded in all the arteries 15–17…”

Section: Methodsmentioning

confidence: 99%

Doppler study of cerebral arteries in hypercholesterolemia

Farhoudi

Mehrvar²,

Aslanabadi³

et al. 2011

VHRM

View full text Add to dashboard Cite

Background:Hypercholesterolemia is one of the major modifiable risk factors for atherosclerosis of the coronary and carotid arteries. Although transcranial Doppler (TCD) studies of the cerebral arteries are indicative of decreased cerebral blood flow velocities in patients with hypercholesterolemia, the number of these studies has been limited. The aim of this study was to assess the hemodynamic status of the cerebral arteries in patients with hypercholesterolemia using TCD.Methods:In a case-control study, 60 individuals, including 30 hypercholesterolemic cases (low-density lipoprotein [LDL] > 160 mg/dL) and 30 healthy controls were enrolled. Other arterial risk factors, including diabetes mellitus, hypertension, smoking, and obesity (body mass index > 30), were evaluated and matched as well. TCD was used to assess the hemodynamics of the intracranial arteries as well as the internal carotid arteries. The mean blood flow velocity, pulsatility index, and resistance index were recorded in all the arteries.Results:The mean blood flow velocity, pulsatility index, and resistance index of the intracranial arteries and internal carotid arteries were not significantly different between the two groups (P > 0.05). However, those with higher levels of LDL (>180 mg/dL) showed significantly lower mean blood flow velocity and resistance index of the internal carotid arteries than the healthy controls. In addition, individuals with high-density lipoprotein (HDL) <35 mg/dL had significantly lower mean blood flow velocity in the internal carotid arteries.Conclusion:Hypercholesterolemia (LDL >160 mg/dL) does not seem to have a detrimental effect on the hemodynamic status of the intracranial arteries and internal carotid arteries. However, in cases of higher LDL (>180 mg/dL) and lower HDL, decreased TCD parameters in the internal carotid arteries, as a surrogate of the peripheral arteries, are prominent.

show abstract

Are Doppler ultrasonography parameters symmetric between the right and left kidney?

Cited by 10 publications

References 16 publications

Changes in Renal Resistive Index Values in Healthy Puppies during the First Months of Life

Changes in Renal Resistive Index Values in Healthy Puppies during the First Months of Life

Doppler evaluation of renal resistivity index in healthy conscious horses and donkeys

Doppler study of cerebral arteries in hypercholesterolemia

Contact Info

Product

Resources

About