title: Safety of Magnetic Resonance Imaging After Implantation of Stainless Steel Embolization Coils.
abstract: Stainless steel embolization coils (SSEC) have been used for over four decades for vascular occlusion. Recently, the safety of these coils in a magnetic resonance environment has been called into question, with important ramifications for thousands of patients with existing coils in place. We performed a retrospective chart review at five tertiary care pediatric centers evaluating all children and young adults with implanted SSEC who underwent magnetic resonance imaging (MRI). Data reviewed included demographics, coil implantation, MRI studies, and follow-up evaluations. Complications such as heating, discomfort, or device migration were specifically sought. Two hundred and ninety-seven patients with implanted SSEC underwent 539 MRI examinations. The median age at SSEC implantation was 2.3 years (1 week-23.2 years). The MRI studies were performed a median of 7.4 years (4 days-23.1 years) after implantation. No patients experienced any reported complications associated with their MRI examinations during the study or at median follow-up post-MRI of 4.8 years (1 day-23 years). In this large, retrospective review of patients with implanted SSEC undergoing MRI, there were no reported adverse events. These findings support the recent change by Cook Medical Inc. of their standard embolization coils from a designation of magnetic resonance unsafe to conditional.
authors.affiliation: Emory University School of Medicine, Children's Healthcare of Atlanta, 1405 Clifton Road, Atlanta, GA, 30322, USA. slesnickt@kidsheart.com.
authors.forename: Timothy C
authors.initials: TC
authors.lastname: Slesnick
authors.affiliation: Boston Children's Hospital, Harvard Medical School, Boston, MA, USA. jenna.schreier@cardio.chboston.org.
authors.forename: Jenna
authors.initials: J
authors.lastname: Schreier
authors.affiliation: Seattle Children's Hospital, University of Washington School of Medicine, Seattle, WA, USA. brian.soriano@seattlechildrens.org.
authors.forename: Brian D
authors.initials: BD
authors.lastname: Soriano
authors.affiliation: Children's Hospital and Medical Center, University of Nebraska College of Medicine, Omaha, NE, USA. skutty@unmc.edu.
authors.forename: Shelby
authors.initials: S
authors.lastname: Kutty
authors.affiliation: Medical University of South Carolina Children's Hospital, Charleston, SC, USA. nutting@musc.edu.
authors.forename: Arni C
authors.initials: AC
authors.lastname: Nutting
authors.affiliation: Emory University School of Medicine, Children's Healthcare of Atlanta, 1405 Clifton Road, Atlanta, GA, 30322, USA. kimd@kidsheart.com.
authors.forename: Dennis W
authors.initials: DW
authors.lastname: Kim
authors.affiliation: Boston Children's Hospital, Harvard Medical School, Boston, MA, USA. andrew.powell@cardio.chboston.org.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Powell
authors.affiliation: Boston Children's Hospital, Harvard Medical School, Boston, MA, USA. anne.valente@cardio.chboston.org.
authors.forename: Anne Marie
authors.initials: AM
authors.lastname: Valente
mesh_terms: D000293:Adolescent; D000328:Adult; D001807:Blood Vessel Prosthesis; D002648:Child; D002675:Child, Preschool; D004621:Embolization, Therapeutic / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging; D012189:Retrospective Studies; D013193:Stainless Steel; D015607:Stents; D055815:Young Adult
chemical_list: D013193:Stainless Steel
keywords: Congenital heart disease; Magnetic resonance imaging; Pediatrics; Safety; Stainless steel embolization coils