This Article Full Text (PDF) References Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Williamson, M. R. Articles by Ferris, E. J. Search for Related Content PubMed PubMed Citation Articles by Williamson, M. R. Articles by Ferris, E. J. Social Bookmarking                         What's this?

Effect of a 1.5 Tesla Magnetic Field on Greenfield Filters in Vitro and in Dogs

From the University of New Mexico School of Medicine, Department of Radiology, Albuquerque, New Mexico

Timothy C. McCowan

From the University of Arkansas for Medical Sciences, Division of Radiology, Little Rock, Arkansas

Craig W. Walker

From the University of Arkansas for Medical Sciences, Division of Radiology, Little Rock, Arkansas

Ernest J. Ferris

From the University of Arkansas for Medical Sciences, Division of Radiology, Little Rock, Arkansas

The authors have tested four Greenfield filters for deflection in a 1.5 Tesla magnetic field and found large variations in the amount of deflection among filters. They also placed two filters in dogs and checked the filter for migration by taking radiographs before and after magnetic resonance imaging (MRI) scans. They found no evidence of migration. They conclude that, while most Greenfield filters respond to a magnetic field, the chance of migration of a filter because of an MRI scan is small. Therefore, MRI scanning of patients with Greenfield filters has little risk.

Angiology, Vol. 39, No. 12, 1022-1024 (1988)
DOI: 10.1177/000331978803901203


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?