@article{ref1,
title="Magnetic field interactions of military and law enforcement bullets at 1.5 and 3 Tesla",
journal="Military medicine",
year="2016",
author="Diallo, Idris and Auffret, Mathieu and Attar, Lakdar and Bouvard, Elise and Rousset, Jean and Salem, Douraied Ben",
volume="181",
number="7",
pages="710-713",
abstract="OBJECTIVES: There are significant numbers of military and law enforcement bullets containing ferromagnetic materials. This study aimed to assess the magnetic field interactions for a representative sample of military and law enforcement ballistic objects at 1.5 and 3 tesla (T) to create a magnetic resonance imaging (MRI) compatibility database. <br><br>METHODS: Twenty-nine different bullets underwent MRI evaluation. The deflection angle method and a qualitative torque scale were used. The samples were representative of those commonly used in the North Atlantic Treaty Organization (NATO) military forces (e.g., 5.56 mm NATO), law enforcement agencies (e.g., 9 mm Parabellum), and encountered in war injuries and crime-related trauma (e.g., 7.62 mm Kalashnikov). <br><br>RESULTS: At all static magnetic field strengths, all non-nickel- and nonsteel-containing bullets exhibited no movement (deflection angle = 0°; torque = 0), whereas eight bullets containing steel core, steel jacket, or nickel jacket exhibited substantial magnetic field interactions over and above what might be regarded as safe in vivo (deflection angle = 90°; torque = 4+). <br><br>CONCLUSION: Military and law enforcement non-nickel- or nonsteel-containing bullets appear to be safe for patients in MRI system at 1.5 and 3 T. On the other hand, nickel- and steel-containing bullets exhibit movements that are considered potentially unsafe for patients in an MRI environment.<br><br>Reprint & Copyright © 2016 Association of Military Surgeons of the U.S.<p /> <p>Language: en</p>",
language="en",
issn="0026-4075",
doi="10.7205/MILMED-D-15-00246",
url="http://dx.doi.org/10.7205/MILMED-D-15-00246"
}