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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,...
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...
Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
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...
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...

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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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MRI to assess renal structure and function.

Ferruh Artunc1, Cristina Rossi, Andreas Boss

  • 1Department of Internal Medicine IV, Section of Nephrology and Hypertension, University of Tuebingen, Tuebingen, Germany. ferruh.artunc@med.uni-tuebingen.de

Current Opinion in Nephrology and Hypertension
|September 3, 2011
PubMed
Summary
This summary is machine-generated.

Functional MRI advances renal physiology studies, offering accurate glomerular filtration rate (GFR) measurement and insights into tissue oxygenation. While promising for kidney disease diagnosis, standardization is needed for broader clinical use.

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Area of Science:

  • Magnetic Resonance Imaging (MRI)
  • Renal Physiology
  • Medical Imaging

Background:

  • MRI offers detailed anatomical renal imaging.
  • Functional MRI techniques are emerging to assess renal physiology.
  • Key functional aspects include perfusion, GFR, and tissue oxygenation.

Purpose of the Study:

  • To review current developments in functional MRI for renal applications.
  • To emphasize the clinical applicability of these advanced MRI techniques.
  • To explore the potential of MRI in diagnosing and managing kidney diseases.

Main Methods:

  • Review of current functional MRI techniques for renal assessment.
  • Focus on methods for GFR determination, tissue oxygenation, and perfusion.
  • Inclusion of contrast-enhanced and non-contrast-enhanced MRI techniques.

Main Results:

  • Liver disappearance curves show accuracy for GFR in healthy and CKD patients.
  • Non-contrast MRI methods (BOLD, ASL) assess oxygenation and perfusion, aiding ischemic disease diagnosis.
  • Diffusion imaging provides data on water diffusion and tumor cellularity.

Conclusions:

  • Functional MRI provides novel in vivo insights into renal physiology and pathophysiology.
  • Clinical applicability is currently limited by postprocessing demands and lack of standardization.
  • Further research is essential to establish the clinical value of functional MRI for early kidney disease detection and characterization.