Results 261 to 270 of about 10,740 (300)

Role of resistive index in renal colic

Urological Research, 2007
We studied the role of duplex Doppler ultrasonography in the diagnosis of renal obstruction caused by ureteral calculi. Using duplex Doppler sonography, we evaluated the intrarenal hemodynamics of 27 patients who presented to the emergency department with renal colic.
Mehmet Ruhi, Onur, Metin, Cubuk, Cagatay, Andic, Mutlu, Kartal, Gokhan, Arslan   +4 more
openaire   +2 more sources

Renal Resistive Index: not only kidney

Clinical and Experimental Nephrology, 2016
From growing data from the literature emerges that so-called ecoDoppler "Renal" Resistive Indexes (RRI) are not only specific markers of kidney damage and indicators of renal functional prognosis but they always express more clearly a strong link with the systemic circulation.
Pierpaolo, Di Nicolò, Antonio, Granata
openaire   +2 more sources

Renal histomorphometry and resistance index in children with renal disease

Journal of Clinical Ultrasound, 2000
The aim of this study was to examine the relationships between the renal resistance index (RI) and histomorphometric variables measured in children with glomerular or nonglomerular renal disease. Patients and Methods The medical records, sonography reports, and biopsy specimens of 30 children with glomerular or nonglomerular renal disease (mean age, 11.
Goktay, Y, Turkmen, M, SARIOĞLU, SÜLEN, Kavukcu, SALİH, SOYLU, ALPER, Ozer, E   +5 more
openaire   +3 more sources

Renal Resistance Index in Renal Allograft Recipients: A Role for ADMA

American Journal of Kidney Diseases, 2009
Renal resistance index, a predictor of kidney allograft function and patient survival, seems to depend on renal and peripheral vascular compliance and resistance. Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor of nitric oxide synthase and therefore influences vascular resistance.We investigated the relationship between renal resistance ...
Ivo P, Bergmann, Rainer H, Böger, Elizabeth, Marti, Felix J, Frey, Edzard, Schwedhelm, Ute, Eisenberger   +5 more
openaire   +2 more sources

Renal colic in pregnant women: role of renal resistive index

Urology, 2000
To investigate the value of the renal resistive index (RI) in the identification of acute renal obstruction in pregnant women.The study included 22 pregnant women with acute unilateral ureteral obstruction due to a stone disease (group A), 71 normotensive pregnant patients without loin pain (group B), and 20 nonpregnant women of child-bearing age with ...
A A, Shokeir, M R, Mahran, M, Abdulmaaboud   +2 more
openaire   +2 more sources

Resistive index in renal colic: a prospective study

BJU International, 1999
Objective To study the role of Doppler ultrasonography (DU) in the diagnosis of acute unilateral renal obstruction. Patients and methods In all, 117 patients with suspected renal colic were evaluated by intravenous urography (IVU) and ...
A A, Shokeir, M, Abdulmaaboud
openaire   +2 more sources

Renal Arterial Resistance Index

2015
The kidney is a profusely vascularized organ which, unlike other organs, does not regulate renal blood flow (RBF) mainly by oxygen demand. Reflex (myogenic effect and tubular-glomerular feedback) and neurohormonal mechanisms modulate RBF and renal resistances by regulating the tone of afferent and efferent arterioles as well as that of the major ...
Iacoviello M, Antoncecchi V, Leone M, Ciccone MM   +3 more
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The internist and the renal resistive index: truths and doubts

Internal and Emergency Medicine, 2015
The renal resistive index (RRI) is measured by Doppler sonography in an intrarenal artery, and is the difference between the peak systolic and end-diastolic blood velocities divided by the peak systolic velocity. The RRI is used for the study of vascular and renal parenchymal renal abnormalities, but growing evidence indicates that it is also a dynamic
Maria, Boddi, Fabrizia, Natucci, Elisa, Ciani   +2 more
openaire   +2 more sources

Intrarenal Resistive Index after Renal Transplantation

New England Journal of Medicine, 2014
Naesens et al. (Nov. 7 issue)1 published their findings of a well-conducted study looking at the relationship between intrarenal resistive indexes in renal allografts and allograft dysfunction. With regard to the protocol-specified measurements, higher resistive indexes were not associated with allograft dysfunction but were associated with older ...
Rajan K, Patel, Colin C, Geddes, Patrick B, Mark   +2 more
openaire   +4 more sources

The pulsatility index and the resistive index in renal arteries in patients with hypertension and chronic renal failure

Nephrology Dialysis Transplantation, 1995
Abstract Background. The pulsatility index (PI) and the resistive index (RI) are used as pulsed-wave Doppler measurement of downstream renal artery resistance. Little information is available on their value in chronic renal failure and their correlation to parameters of renal function and ...
Petersen, L J, Petersen, J R, Ladefoged, S D, Mehlsen, J, Jensen, H A   +4 more
openaire   +2 more sources