A 25-y-old man with horseshoe kidney was referred for diuretic-augmented renal scintigraphy. Single-detector dynamic posterior imaging was performed and revealed asymmetric retention of radiotracer in the left collecting system. Renal scintigraphy was repeated with a modified protocol. Dynamic imaging was performed this time using dual-detector acquisition of both anterior and posterior data. T...

OBJECTIVES To analyze the predictive values of selective venous sampling (SVS) in our own experience and in a systematic meta-analysis of the international literature and to compare them with the results of noninvasive localization studies before reoperative parathyroid surgery. DATA SOURCES Twenty-one consecutive patients with persistent or recurrent renal hyperparathyroidism underwent preop...

Renal complications from snakebite result in high mortality and morbidity. Acute kidney injury (AKI) occurs in 5-30% of cases. Renal manifestation could include acute tubular necrosis, cortical necrosis, interstitial nephritis, glomerulonephritis, and vasculitis. We present a case of thrombotic microangiopathy (TMA) resulting in renal cortical necrosis. Renal biopsy showed fibrin thrombi in glo...

Visualization of the kidneys during hepatobiliary scintigraphy using technetium-99m(Tc) labeled N -substituted iminodiacetic acid agents is often the consequence of severe hepatic dysfunction or biliary tract obstruction {}-3). We report a case of delayed renal visualization seen during hepatobiliary imaging with [Tc]diisopropyl-iminodiacetic acid (DISIDA) where no evidence for severe hepatic d...

Patlak graphical analysis was applied to quantify renal cortical blood flow with N-13 ammonia and dynamic positron emission tomography. Measurements were made in a swine model of kidney transplantation with a wide range of normal and abnormal renal blood flows (N = 57 studies) and in 20 healthy human volunteers (N = 45 studies). Estimates of renal cortical blood flow by the Patlak method were c...

KEY POINTS Our understanding of the mechanisms underlying the role of hypoxia in the initiation and progression of renal disease remains rudimentary. We have developed a method that allows wireless measurement of renal tissue oxygen tension in unrestrained rats. This method provides stable and continuous measurements of cortical tissue oxygen tension (PO2) for more than 2 weeks and can reproduc...

BACKGROUND Urine output, a frequently used resuscitation end point, is presumed to represent renal cortical perfusion. However, no noninvasive method for direct measurement of renal perfusion exists. Power Doppler ultrasound (PDUS) is a method that reportedly is sensitive to low-velocity and microvascular blood flow and can depict it. This study aimed to develop a quantitative technique for PDU...

INTRODUCTION Renal artery stenosis can lead to renovascular hypertension; however, the detection of stenosis alone does not guarantee the presence of renovascular hypertension. Renovascular hypertension depends on activation of the renin-angiotensin system, which can be detected by functional tests such as captopril renal scintigraphy. A method that allows direct measurement of the baseline and...

Visualization of the kidneys during hepatobiliary scintigraphy using technetium-99m(Tc) labeled N -substituted iminodiacetic acid agents is often the consequence of severe hepatic dysfunction or biliary tract obstruction {}-3). We report a case of delayed renal visualization seen during hepatobiliary imaging with [Tc]diisopropyl-iminodiacetic acid (DISIDA) where no evidence for severe hepatic d...

introduction: the aim of this study was to evaluate the effect of successful kidney transplantation (kt) on myocardial perfusion and left ventricular function by both qualitative (visual) interpretation and semiquantitative parameters, using myocardial perfusion scintigraphy with gated-single photon emission computed tomography (gated-spect) in patients suffering from end-stage renal disease. ...