Magnetic Resonance Imaging Susceptibility Artifacts Due to Metallic Foreign Bodies

摘要: Susceptibility artifacts due to metallic foreign bodies may interfere with interpretation of magnetic resonance (MR) imaging studies. Additionally, migration objects pose a risk patients undergoing MR imaging. Our purpose was investigate prevalence, underlying cause, and diagnostic implications susceptibility in small animal report associated adverse effects. studies performed dogs cats between April 2008 March 2010 were evaluated retrospectively for the presence bodies. Studies using 1.0 T scanner. Severity graded as 0 (no interference area interest), 1 (extension artifact interest without impairment quality), 2 (impairment quality but diagnosis still possible), or 3 (severe involvement resulting nondiagnostic study). Medical records identify present 99/754 (13.1%) most common examinations brachial plexus, thorax, cervical spine. Artifacts caused by identification microchips, ballistic fragments, skin staples/suture material, hemoclips, an ameroid constrictor, surgical hardware. Three artifact. Adverse effects not documented.