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Related Experiment Videos

Special focus session. MR arthrography.

Lynne S Steinbach1, William E Palmer, Mark E Schweitzer

  • 1Department of Radiology, University of California San Francisco, 505 Parnassus Ave, Suite M392, San Francisco, CA 94143-0628, USA. lynne.steinbach@radiology.ucsf.edu

Radiographics : a Review Publication of the Radiological Society of North America, Inc
|September 18, 2002
PubMed
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Magnetic resonance (MR) arthrography, both direct and indirect, aids in diagnosing joint abnormalities. Direct MR arthrography excels in visualizing specific joint structures, while indirect methods offer an alternative when direct injection is not feasible.

Area of Science:

  • Radiology
  • Orthopedic Imaging
  • Diagnostic Imaging

Background:

  • Magnetic resonance (MR) arthrography is a valuable diagnostic tool for evaluating joint pathologies.
  • Direct and indirect techniques offer distinct advantages for visualizing intra-articular structures.

Purpose of the Study:

  • To review the utility of direct and indirect MR arthrography in diagnosing various joint abnormalities.
  • To highlight the specific applications and benefits of each MR arthrography technique.

Main Methods:

  • Direct MR arthrography involves injecting contrast agents (saline or gadolinium) directly into the joint.
  • Indirect MR arthrography utilizes intravenous gadolinium administration, particularly useful with minimal joint fluid.

Main Results:

Related Experiment Videos

  • Direct MR arthrography is effective for labral tears (shoulder, hip), rotator cuff tears, elbow ligament injuries, knee meniscal tears, wrist ligament perforations, ankle injuries, osteochondral lesions, and loose bodies.
  • Indirect MR arthrography enhances visualization in low-fluid joints and highlights vascularized or inflamed tissues, aiding in diagnosis and exclusion of abnormalities.

Conclusions:

  • Both direct and indirect MR arthrography are crucial for accurate joint assessment.
  • Indirect MR arthrography provides a non-invasive alternative when direct injection is challenging, offering superior visualization in specific scenarios.