Aneurysm clips: magnetic quantification and magnetic resonance imaging safety
| Autor: | Y. J. Zhao, Manuel Dujovny, Glen D. Dobben, Nadav Dujovny, Mukesh Misra, N. Rao Gundamraj, M. Serdar Alp |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
medicine.medical_specialty
medicine.diagnostic_test Magnetic moment Aneurysm clips Magnetometer business.industry Magnetism Magnetic resonance imaging Technical note Aneurysm Magnetic Resonance Imaging law.invention Magnetics Nuclear magnetic resonance law medicine Humans In patient Radiology CLIPS business Electromagnetic Phenomena Vascular Surgical Procedures computer computer.programming_language |
| Zdroj: | Journal of Neurosurgery. 87:788-794 |
| ISSN: | 0022-3085 |
| DOI: | 10.3171/jns.1997.87.5.0788 |
| Popis: | ✓ Knowledge of the magnetic properties of cerebral aneurysm clips in patients undergoing magnetic resonance (MR) imaging is imperative. The authors quantified in electromagnetic units the magnetic properties of 13 different types of aneurysm clips by using a vibrating sample magnetometer. Their results showed that the magnetic moment of these clips ranged from 0.15 EMU/g to as high as 152.7 EMU/g. Based on these results and tests of the movement of the clips during MR imaging, they conclude that aneurysm clips with a magnetic moment less than 1 EMU/g may be safely used during MR imaging. The quantification of magnetic properties into electromagnetic units by using a vibrating sample magnetometer is a reliable method applicable to any testing field gradient. This method can be used as a standard to measure and label the magnetic properties of aneurysm clips. |
| Databáze: | OpenAIRE |
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