Title
Reduction of metal artefacts in musculoskeletal MR imaging Reduction of metal artefacts in musculoskeletal MR imaging
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
Source (journal)
Journal belge de radiologie = Belgisch tijdschrift voor radiologie
Volume/pages
90(2007) , p. 345-349
ISI
000260089300008
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
The purpose of this article is to present a educational overview of practical tips to deal with metal artefacts in clinical musculoskeletal MRI. A brief theoretical explanation to understand the cause of metal artefacts is provided followed by a discussion on parameters to reduce these metal artefacts. Effects of adjustable parameters are demonstrated both in a volunteer with a titanium screw and a saline bag attached to the shoulder and in a in vitro experiment. These parameters include positioning of the patient with the long axis of metallic hardware parallel to 130, use of fast spin echo sequences, use of inversion recovery fat suppression, swapping phase and frequency encoding direction, use of view angle tilting, increasing the read-out bandwidth, and decreasing voxel size.
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