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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...
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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,...
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[Magnetic resonance arthrography].

M Streif1, A Hirschmann2

  • 1Klinik für Radiologie und Nuklearmedizin, Universitätsspital Basel, Universität Basel, Petersgraben 4, 4031, Basel, Schweiz. matthias.streif@usb.ch.

Der Radiologe
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Summary
This summary is machine-generated.

Magnetic resonance arthrography is a sensitive imaging technique, especially for shoulder joint tears. While effective, it is invasive and can be uncomfortable for patients.

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Area of Science:

  • Radiology
  • Orthopedic Imaging
  • Musculoskeletal Diagnostics

Background:

  • Magnetic resonance (MR) arthrography is a sensitive diagnostic tool.
  • It is frequently used for shoulder (57%), hand (24%), and hip (16%) joints.
  • MR arthrography surpasses native MR imaging in detecting partial thickness tendon tears, particularly in the shoulder.

Purpose of the Study:

  • To review the indications, risks, and contraindications of MR arthrography.
  • To detail the puncture technique for MR arthrography.
  • To highlight potential pitfalls associated with MR arthrography.

Main Methods:

  • Review of existing literature and clinical practice guidelines.
  • Description of the procedural aspects of MR arthrography, including joint access.
  • Illustrative examples of common challenges and errors in MR arthrography interpretation.

Main Results:

  • MR arthrography demonstrates high sensitivity for joint pathologies, especially in the shoulder.
  • The technique involves intra-articular contrast injection, enhancing visualization of internal joint structures.
  • Common applications include the evaluation of labral tears, cartilage defects, and tendon pathology.

Conclusions:

  • MR arthrography is a valuable, albeit invasive, imaging modality for specific joint conditions.
  • Understanding the indications, risks, and technical nuances is crucial for optimal patient outcomes.
  • Awareness of potential pitfalls can improve diagnostic accuracy and patient safety.