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Related Concept Videos

Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
Imaging Studies I: Kidney, Ureter, and Bladder Studies01:28

Imaging Studies I: Kidney, Ureter, and Bladder Studies

Kidney, Ureter, and Bladder (KUB) StudiesKidney, Ureter, and Bladder (KUB) studies are standard diagnostic imaging procedures used to assess the anatomy of the urinary system. They are commonly utilized for patients experiencing abdominal pain or urinary symptoms. By using a simple X-ray of the abdomen, KUB studies can reveal structural and pathological abnormalities within the kidneys, ureters, and bladder. These studies are particularly valuable in diagnosing kidney stones, urinary...
Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
External Anatomy of the Kidney01:21

External Anatomy of the Kidney

The kidneys are a pair of bean-shaped organs in the human body that play a critical role in maintaining overall health. They filter out waste products from the blood, regulate blood pressure, maintain electrolyte balance, and stimulate the production of red blood cells.
The kidneys are located in the retroperitoneal space on either side of the vertebral column, protected posteriorly by the 11th and 12th ribs. The right kidney sits slightly lower than the left owing to the presence of the liver...
Imaging Studies V: Intravenous Urography and Retrograde Pyelography01:22

Imaging Studies V: Intravenous Urography and Retrograde Pyelography

IntroductionIntravenous Urography (IVU) and Retrograde Pyelography (RP) are important diagnostic imaging techniques used to evaluate the urinary system. These methods help identify structural abnormalities, obstructions, and functional issues in the kidneys, ureters, and bladder. Both procedures use iodine-based contrast media to enhance the visibility of urinary tract structures on X-ray images, though they differ in their methods and indications.1. Intravenous Urography (IVU)Intravenous...

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Use of Ultra-high Field MRI in Small Rodent Models of Polycystic Kidney Disease for In Vivo Phenotyping and Drug Monitoring
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Functional MRI of the kidneys.

Jeff L Zhang1, Henry Rusinek, Hersh Chandarana

  • 1Department of Radiology, University of Utah School of Medicine, Salt Lake City, Utah 84108, USA. Lei.Zhang@hsc.utah.edu

Journal of Magnetic Resonance Imaging : JMRI
|January 29, 2013
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Summary

Magnetic resonance imaging (MRI) noninvasively assesses key renal functions like perfusion and filtration. Recent advancements in MRI techniques offer promising diagnostic tools for various kidney diseases.

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Area of Science:

  • Nephrology
  • Radiology
  • Medical Imaging

Background:

  • Renal function involves complex physiologic aspects: perfusion, glomerular filtration, interstitial diffusion, and tissue oxygenation.
  • Noninvasive assessment of these renal characteristics is crucial for diagnosing and managing kidney diseases.
  • Magnetic resonance imaging (MRI) has emerged as a powerful tool for evaluating renal physiology.

Purpose of the Study:

  • To review the progress of functional MRI techniques for renal function assessment over the last decade.
  • To describe the relevant renal anatomy and physiology pertinent to MRI evaluation.
  • To highlight the applications of functional MRI in diagnosing renal diseases and identify future research directions.

Main Methods:

  • Review of recent advancements in functional MRI techniques applicable to renal assessment.
  • Description of fundamental renal anatomy and physiology.
  • Synthesis of literature on the diagnostic utility of functional MRI for various renal pathologies.

Main Results:

  • Significant progress has been made in developing and applying functional MRI techniques for renal assessment.
  • Functional MRI can noninvasively evaluate perfusion, filtration, diffusion, and oxygenation in renal tissues.
  • These techniques show promise in the diagnosis of diverse renal diseases.

Conclusions:

  • Functional MRI is a rapidly advancing, noninvasive modality for assessing renal physiology.
  • Continued development and application of MRI techniques are expected to enhance the diagnosis and management of kidney diseases.
  • Further research is needed to address unresolved issues and expand the clinical utility of functional MRI in nephrology.