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Related Experiment Videos

Spetzler titanium aneurysm clips: compatibility at MR imaging

F G Shellock1, V J Shellock

  • 1Department of Radiology, School of Medicine, University of Southern California, Los Angeles, USA.

Radiology
|March 12, 1998
PubMed
Summary

Commercially pure titanium aneurysm clips are safe for 1.5 Tesla magnetic resonance (MR) imaging. These titanium clips produced minimal artifacts compared to other nonferromagnetic aneurysm clips, ensuring patient safety during MR scans.

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Area of Science:

  • Neurosurgery
  • Radiology
  • Biomaterials Science

Background:

  • Aneurysm clips are crucial for treating brain aneurysms.
  • Compatibility of surgical implants with Magnetic Resonance (MR) imaging is essential for patient management.
  • Titanium aneurysm clips are increasingly used due to their nonferromagnetic properties.

Purpose of the Study:

  • To assess the safety and compatibility of a specific titanium aneurysm clip (Spetzler clip) with 1.5 Tesla (T) MR imaging.
  • To compare MR imaging artifacts generated by the titanium clip against those from other nonferromagnetic aneurysm clips.

Main Methods:

  • The Spetzler titanium aneurysm clip was tested for magnetic attraction and heating in a 1.5 T MR scanner.
  • MR imaging artifacts were quantified and compared between the titanium clip and six different nonferromagnetic aneurysm clips.

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Main Results:

  • The Spetzler titanium clip exhibited no magnetic attraction and only minor heating.
  • Artifacts associated with the titanium clip were significantly smaller, characterized by a small signal void.
  • Other nonferromagnetic aneurysm clips produced larger MR imaging artifacts.

Conclusions:

  • The Spetzler commercially pure titanium aneurysm clip is safe for use in patients undergoing 1.5 T MR imaging.
  • Titanium aneurysm clips offer a favorable safety profile with minimal MR imaging interference compared to other materials.