Metal artifact reduction in musculoskeletal magnetic resonance imaging
Craig A Harris1, Lawrence M White
1Division of Musculoskeletal Imaging, University of Toronto, Mount Sinai Hospital and the University Health Network, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada. Craig.Harris@uhn.on.ca
Abstract:
Many strategies can be employed to reduce the size and scale of metal susceptibility artifacts in the vicinity of orthopedic hardware; factors include selection of metal hardware material, patient positioning, and MRI sequence adjustments and techniques. The adjustments to sequence parameters include high spatial resolution fast spin echo sequences with minimal interecho spacing and increased receiver bandwidth. Frequency and phase encoding gradients can be orientated so misregistration artifacts arising from the metal are directed away from areas of anticipated clinical diagnostic interest. Complications arising in the vicinity of metallic hardware, including loosening, can be assessed after implication of these metal artifact reduction techniques.
Related Concept Videos
Magnetic Resonance Imaging
Imaging Studies for Cardiovascular System IV: CMRI
Proteomics
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...
Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Atomic Nuclei: Magnetic Resonance

