PT  - JOURNAL ARTICLE
AU  - W Wichmann
AU  - K Von Ammon
AU  - U Fink
AU  - T Weik
AU  - G M Yasargil
TI  - Aneurysm clips made of titanium: magnetic characteristics and artifacts in MR.
DP  - 1997 May 01
TA  - American Journal of Neuroradiology
PG  - 939--944
VI  - 18
IP  - 5
4099  - http://www.ajnr.org/content/18/5/939.short
4100  - http://www.ajnr.org/content/18/5/939.full
SO  - Am. J. Neuroradiol.1997 May 01; 18
AB  - PURPOSE To evaluate the magnetic characteristics, artifact formation, and implant safety of titanium aneurysm clips for use in MR imaging.METHODS Aneurysm clips made of titanium alloy TiAl6V4 were tested in a magnetometer to determine their magnetic susceptibility and in a 1.5-T MR imager using both a geometric phantom and an animal model. A commercially available alpha-Phynox clip served as the reference standard.RESULTS We found minimal magnetization and a significant reduction in image artifacts with the titanium clip as compared with the Phynox clip.CONCLUSION The titanium clips improve image quality, biocompatibility, and patient safety in medical MR applications.