Magnetic resonance imaging and aneurysm clips. Magnetic properties and image artifacts

B. Romner; M. Olsson; B. Ljunggren; S. Holtas; H. Saveland; L. Brandt; B. Persson

doi:10.3171/jns.1989.70.3.0426

Magnetic resonance imaging and aneurysm clips. Magnetic properties and image artifacts

B. Romner, M. Olsson, B. Ljunggren, S. Holtas, H. Saveland, L. Brandt, B. Persson

Skåne University Hospital

Research output: Contribution to journal › Article › peer-review

Abstract

The magnetic properties of 12 different types of aneurysm clip were investigated in order to identify which clips allow postoperative magnetic resonance (MR) imaging without risk. Clip-induced MR artifacts were also quantitatively studied using a geometrical phantom. Nonferromagnetic aneurysm clips like the Yasargil Phynox, Sugita Elgiloy, and Vari-Angle McFadden clips do not appear to contraindicate MR studies performed with a FONAR β-3000M imager. There is no clip movement upon introduction of the phantom into the MR imager, and the image artifacts caused by the clips are so limited that patients harboring such clips may well be considered for MR imaging. This examination may reveal information not obtainable by any other radiological modality.

Original language	English
Pages (from-to)	426-431
Number of pages	6
Journal	Journal of Neurosurgery
Volume	70
Issue number	3
DOIs	https://doi.org/10.3171/jns.1989.70.3.0426
Publication status	Published - 1989 Jan 1
Externally published	Yes

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10.3171/jns.1989.70.3.0426

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AU - Romner, B.

AU - Olsson, M.

AU - Ljunggren, B.

AU - Holtas, S.

AU - Saveland, H.

AU - Brandt, L.

AU - Persson, B.

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AB - The magnetic properties of 12 different types of aneurysm clip were investigated in order to identify which clips allow postoperative magnetic resonance (MR) imaging without risk. Clip-induced MR artifacts were also quantitatively studied using a geometrical phantom. Nonferromagnetic aneurysm clips like the Yasargil Phynox, Sugita Elgiloy, and Vari-Angle McFadden clips do not appear to contraindicate MR studies performed with a FONAR β-3000M imager. There is no clip movement upon introduction of the phantom into the MR imager, and the image artifacts caused by the clips are so limited that patients harboring such clips may well be considered for MR imaging. This examination may reveal information not obtainable by any other radiological modality.

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Magnetic resonance imaging and aneurysm clips. Magnetic properties and image artifacts

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