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Contrast-enhanced Ultrasound for Complex Kidney Lesion Diagnosis in Patients With CKD Extension

2017-06-23 03:08:22 | BioPortfolio

Summary

The purpose of this research study is to evaluate contrast-enhanced ultrasound for kidney malignancies.

Description

This is an investigator-initiated, prospective study designed to evaluate the accuracy of contrast-enhanced ultrasound (CEUS) with microbubble contrast agent (perflutren lipid; Definity®) to identify malignancy in patients with kidney disease, a known risk factor for kidney malignancy, in whom a conventional ultrasound (US) or other prior imaging shows an indeterminate or suspicious kidney lesion.

The primary objective of the study is to estimate the sensitivity of CEUS in diagnosing kidney malignancy in patients with a risk factor for kidney malignancy and compare it to the current gold standard test in this patient population. Secondary analysis will include more optimal contrast-enhanced imaging with computed tomography (CT) or magnetic resonance imaging (MRI) in a subset of patients who can receive these studies. The study outcome will lead to immediate clinical application in patients with chronic kidney disease. Given the cost-effectiveness and adverse event profile, it has excellent potential to become established as first line diagnostics in the general patient population as well.

Study Design

Conditions

Chronic Kidney Diseases

Intervention

Perflutren Lipid microsphere

Location

University of North Carolina of Chapel hill
Chapel Hill
North Carolina
United States
27599-7510

Status

Not yet recruiting

Source

University of North Carolina, Chapel Hill

Results (where available)

View Results

Links

Published on BioPortfolio: 2017-06-23T03:08:22-0400

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Medical and Biotech [MESH] Definitions

Abnormal enlargement or swelling of a KIDNEY due to dilation of the KIDNEY CALICES and the KIDNEY PELVIS. It is often associated with obstruction of the URETER or chronic kidney diseases that prevents normal drainage of urine into the URINARY BLADDER.

The end-stage of CHRONIC RENAL INSUFFICIENCY. It is characterized by the severe irreversible kidney damage (as measured by the level of PROTEINURIA) and the reduction in GLOMERULAR FILTRATION RATE to less than 15 ml per min (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002). These patients generally require HEMODIALYSIS or KIDNEY TRANSPLANTATION.

Conditions in which the KIDNEYS perform below the normal level for more than three months. Chronic kidney insufficiency is classified by five stages according to the decline in GLOMERULAR FILTRATION RATE and the degree of kidney damage (as measured by the level of PROTEINURIA). The most severe form is the end-stage renal disease (CHRONIC KIDNEY FAILURE). (Kidney Foundation: Kidney Disease Outcome Quality Initiative, 2002)

Decalcification of bone or abnormal bone development due to chronic KIDNEY DISEASES, in which 1,25-DIHYDROXYVITAMIN D3 synthesis by the kidneys is impaired, leading to reduced negative feedback on PARATHYROID HORMONE. The resulting SECONDARY HYPERPARATHYROIDISM eventually leads to bone disorders.

Conditions characterized by abnormal lipid deposition due to disturbance in lipid metabolism, such as hereditary diseases involving lysosomal enzymes required for lipid breakdown. They are classified either by the enzyme defect or by the type of lipid involved.

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