Hydronephrotic Kidney: Pediatric Three-dimensional US for Relative Renal Size Assessment—Initial Experience

Riccabona, Michael; Fritz, G. A.; Schöllnast, Helmut; Schwarz, Thomas; Deutschmann, Michael J.; Mache, Christoph J.

doi:10.1148/radiol.2361040158

Cited by 49 publications

(27 citation statements)

References 36 publications

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“…7). When performed in both kidneys, split renal parenchymal volume can be calculated, which has been found comparable to results from DMSA scintigraphy and MR urography [22]. As renal parenchymal Fig.…”

Section: D Urogenital Sonographysupporting

confidence: 69%

Potential role of 3DUS in infants and children

Riccabona

2011

Pediatr Radiol

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The objective of this review is to discuss basic technical aspects as well as potential pediatric applications of three-dimensional ultrasound (3DUS). Different 3DUS-techniques are already commercially available. Most commonly, a transducer-integrated motor drives a scan-head to acquire a volumetric dataset, which is then reconstructed and viewed using various post-processing techniques. It has been proved feasible to apply 3DUS with pediatric transducers in typical pediatric investigations. Based on our own experiences and on review of the literature, 3DUS can be successfully used in infants and children for brain, spine, cardiac, urinary tract (particularly assessment of hydronephrosis, and virtual cystoscopy), and female genital (e.g., for assessment of uterine malformations) US, and for various other applications, particularly in small parts. Power Doppler data can be integrated, allowing 3DUS-angiography. Thus, 3DUS promises to become a useful adjunct for imaging children, particularly as it enhances ultrasound by offering additional, previously inaccessible planes, rendering options and surface assessments. 3DUS should be increasingly exploited, thus hopefully helping reduce the need for more invasive or burdening (e.g., ionizing radiation) investigations in children.

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Section: D Urogenital Sonographysupporting

confidence: 69%

Potential role of 3DUS in infants and children

Riccabona

2011

Pediatr Radiol

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“…Since serum Cys-C levels are frequently superior to serum creatinine levels as an index of renal function [95] with some limitations, it might be introduced as a marker of renal function and follow-up in these patients. Moreover, low renal volume detected by ultrasound measurement of renal length [96, 97] and 3-dimensional ultrasound volume [98, 99] might represent suitable parameters of reduced renal reserve in newborns and children. Scintigraphic measurement may provide a comparison of the renal reserve between kidneys and their relative variation by age in congenital unilateral reduced renal reserve [63].…”

Section: Detection Of Reduced Nephron Reservementioning

confidence: 99%

The Kidney from Prenatal to Adult Life: Perinatal Programming and Reduction of Number of Nephrons during Development

et al. 2009

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Modified embryonic-fetal development resulting in low birth weight may lead to a reduced nephron endowment, hypertension and renal diseases in adulthood. Regarding the involvement of genetic factors, several environmental conditions may also contribute towards reducing the number of nephrons in the fetus and infant, subsequently constituting a health burden in later life. To date no methods of investigation for the early detection of a reduced nephron reserve are available. However, more structured studies should be implemented to investigate the role of angiotensin-converting enzyme inhibitors in managing proteinurias and glomerulosclerosis in children with renal conditions characterized by reduce nephron number and glomerular hypertrophic changes. In view of the current lack of specific methods of investigation and management, close monitoring of children and young adults at risk of reduced renal reserve should be carried out to enhance the early detection of potential changes in renal function.

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“…It has been shown to provide greater anatomical detail and comparable functional studies than ultrasound, scintigraphy and cystourography [14][15][16]. The assessment of renal volume by MRI has been reported in a number of studies [17][18][19][20][21][22][23]. Animal studies have shown that MRI is accurate to within 5% of the renal volume [18,19,23].…”

Section: Introductionmentioning

confidence: 99%

“…The assessment of renal volume by MRI has been reported in a number of studies [17][18][19][20][21][22][23]. Animal studies have shown that MRI is accurate to within 5% of the renal volume [18,19,23]. In adult human studies, 2D ultrasound using an ellipsoid formula to determine volume was not as accurate as MRI [21], whereas 3D ultrasound was comparable [22].…”

Section: Introductionmentioning

confidence: 99%

Are renal volumes measured by magnetic resonance imaging and three-dimensional ultrasound in the term neonate comparable?

et al. 2010

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Renal volume, but not renal length, has been shown to be positively correlated with renal function. Three-dimensional (3D) ultrasound and magnetic resonance imaging (MRI) are two modalities used to assess renal volume. The aim of our study was to determine whether 3D ultrasound measurements of renal volume in the neonate are comparable to those of MRI measurements. Preterm and term neonates had an MRI and 3D ultrasound to determine renal volume at the same time as they had an MRI brain scan for other clinical conditions. The preterm neonates were all term corrected age, and the term neonates were 1-4 weeks of age. None of the kidneys examined were abnormal. There were no significant differences in the weight or length of the preterm and term infants at the time of their MRI scan. The left renal length was significantly longer according to MRI measurements than according to 3D ultrasound measurements (p=0.02). Renal volumes of both the left and right kidney were greater when measured by MRI than by 3D ultrasound (p<0.0001, respectively). Total volumes of the kidneys were greater when measured by MRI than by 3D ultrasound (p=0.008). Renal volume in neonates was significantly less when evaluated by 3D ultrasound than by MRI. These results demonstrate that MRI and 3D ultrasound renal volumes are not comparable in the neonatal population and, therefore, the same radiological modality should be used if repeat volume measurements are to be performed.

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Hydronephrotic Kidney: Pediatric Three-dimensional US for Relative Renal Size Assessment—Initial Experience

Abstract: Initial experience with renal 3D US indicates that it is an accurate method for assessment of renal parenchymal volume and relative renal size, provided there is no acute renal disease.

Cited by 49 publications

References 36 publications

Potential role of 3DUS in infants and children

Potential role of 3DUS in infants and children

The Kidney from Prenatal to Adult Life: Perinatal Programming and Reduction of Number of Nephrons during Development

Are renal volumes measured by magnetic resonance imaging and three-dimensional ultrasound in the term neonate comparable?

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