Diagnostic imaging of renal artery stenosis

Aitchison, Frances; Page, Alison

doi:10.1038/sj.jhh.1000871

Cited by 12 publications

(3 citation statements)

References 75 publications

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“…2) at its upper pole. cited were 11+02 cm, the kidney being considered small for any intervention if it is below 8 cm [31]. The average renal length observed by Buccholz et al [13] was 10.4 + 0.8 cm and was probably a reflection of the relatively small body size of south east Asian.…”

Section: Resultsmentioning

confidence: 99%

Morphological Study of Kidney in Cadavers of Western Maharashtra Region

Shambharkar¹,

Borate²,

Ratta³

et al. 2020

IJAR

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The Kidneys are the most important organs responsible for removing excess water, salts and waste products from the blood and for maintenance of blood pH. Dimensions of kidney vary in a large interval from birth to adulthood. Changes in kidney length, parenchymal width (PW), cortex width (CW) or volume can be associated with atherosclerotic renal diseases, arterial hypertension, atherosclerotic renovascular disease, or diabetes mellitus or to be indicative of these. The renal dimensions can also be an indicator for unilateral glomerular filtration rate. The coronal section study of kidney provides good knowledge in cases of chronic renal diseases and renal transplantation. The purpose of this study was to determine the anatomical parameters of the kidney in adults. Weight, length, breadth, maximum anteroposterior thickness, cortical width, parenchymal widths were studied in 100 adult cadaveric kidneys. The data was statistically analysed. No statistical significance was seen with respect to the difference in right and left side. But the differences which are frequently seen i.e. length of left kidney greater than the right was also found in the present study, resulting in greater breadth and thickness on the right side. Males had slightly higher values than females, though not statistically significant. The mean values provided in the study could be of use to surgeons, radiologists and nephrologists.

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Section: Resultsmentioning

confidence: 99%

Morphological Study of Kidney in Cadavers of Western Maharashtra Region

Shambharkar¹,

Borate²,

Ratta³

et al. 2020

IJAR

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“…Several other authorities have also concluded that DUS may have limitations in the detection of RAS in comparison with CTA and MRA. 5,38,39…”

Section: Doppler Ultrasound Versus Other Imaging Investigationsmentioning

confidence: 99%

Ultrasound Investigation of Suspected Renal Artery Stenosis

Freeman¹

2004

Ultrasound

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Renal artery stenosis (RAS) is an important and potentially reversible cause of both hypertension and renal failure. Ultrasound offers an attractive, non-invasive, method to examine the renal arteries and confirm or exclude the presence of RAS. This article will describe the techniques and diagnostic criteria employed in the ultrasound diagnosis of this condition and will also evaluate the usefulness of ultrasound in comparison with other non-invasive imaging techniques.

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“…B-mode ultrasonography does not play a primary role in the study of RAS [38], but it can reveal significant renal asymmetry (differences in the coronal diameters of the kidneys of >1.5 cm), loss of renal mass (parenchymal thinning), flattening of the mesorenal column, which are in any case nonspecific signs of chronic ischemia [38]. The echogenicity of the ischemic kidney varies from diffuse, uniform hypoechogenicity to fine, diffuse hyperechogenicity.…”

Section: Color Doppler Findings In Chronic Renal Disease Caused By Stmentioning

confidence: 99%

Color Doppler sonography in the study of chronic ischemic nephropathy

Meola

Petrucci

2008

Journal of Ultrasound

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In western countries, the risk of cardiovascular disease has increased considerably in recent decades. This trend has been paralleled by an increase in cases of atherosclerotic renal disease, which is related to the improved prognosis of cardiovascular diseases, aging, and the increasing mean age of the general population. It is reasonable to expect that in the near future, there will be a sharp increase in the number of elderly patients with atherosclerotic vascular disease in chronic dialysis programs. The result will be a dramatic rise in the social and economic costs of dialysis that could constitute a true clinical emergency. In this epidemiologic scenario, one of the most important targets of 21st century nephrology will be the early diagnosis of chronic ischemic nephropathy and the development of new and more effective strategies for its treatment.Color Doppler (CD) ultrasonography has displayed high sensitivity, specificity, and positive and negative predictive values in the diagnosis of this disease in selected population, making it an ideal tool for use in screening programs. Eligibility for screening should be based on clinical criteria. For the most part, it will be aimed at adults (especially those who are elderly) with atherosclerotic vascular disease involving multiple districts and chronic kidney disease (CKD), stage 2e3, in the absence of a documented history of renal disease. In these patients, hypertension may be a secondary manifestation or a symptom of the ischemic nephropathy itself. The objectives of sonographic screening should be (1) to identify subjects in the population at risk who are affected by stenosis of the main renal artery (RAS); (2) to identify and characterize patients without RAS who have chronic ischemic nephropathy caused by nephroangiosclerosis and/or atheroembolic disease. The former group will require second-level diagnostic studies or angioplasty with stenting; the latter can be managed conservatively. The most important CD parameters in the workup of suspected RAS are those that are direct signs, i.e., increases in peak systolic velocity (PSV) and diastolic velocity (DV), spectral broadening, and an altered renal:aortic ratio (RAR). Their assessment requires full-length sampling of the renal artery and is associated with greater practical/technical difficulties. Measurement in triplicate of the PSV in the ostial, medial, and hilar segments of both arteries and bilateral measurement of parenchymal resistance indices are usually sufficient to detect the presence * Corresponding author. Nephrology and Dialysis Unit, Department of Internal Medicine, University of Pisa, via Roma, 67, 56100 Pisa, Italy.E-mail address: mmeola@int.med.unipi.it (M. Meola). of stenosis and refer the patient for second-level studies. Important parameters for estimating the severity of a stenosis include the renal:aortic ratio (>3.5), disappearance of the early systolic peak in segmental vessels, lateralization of the resistance index (DRI > 0.05), and the evaluation of the acceleration ...

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Diagnostic imaging of renal artery stenosis

Cited by 12 publications

References 75 publications

Morphological Study of Kidney in Cadavers of Western Maharashtra Region

Morphological Study of Kidney in Cadavers of Western Maharashtra Region

Ultrasound Investigation of Suspected Renal Artery Stenosis

Color Doppler sonography in the study of chronic ischemic nephropathy

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