A multispectral three‐dimensional acquisition technique for imaging near metal implants
Open Access
- 22 January 2009
- journal article
- research article
- Published by Wiley in Magnetic Resonance in Medicine
- Vol. 61 (2), 381-390
- https://doi.org/10.1002/mrm.21856
Abstract
Metallic implants used in bone and joint arthroplasty induce severe spatial perturbations to the B0 magnetic field used for high-field clinical magnetic resonance. These perturbations distort slice-selection and frequency encoding processes applied in conventional two-dimensional MRI techniques and hinder the diagnosis of complications from arthroplasty. Here, a method is presented whereby multiple three-dimensional fast-spin-echo images are collected using discrete offsets in RF transmission and reception frequency. It is demonstrated that this multi acquisition variable-resonance image combination technique can be used to generate a composite image that is devoid of slice-plane distortion and possesses greatly reduced distortions in the readout direction, even in the immediate vicinity of metallic implants. Magn Reson Med 61:381–390, 2009.Keywords
This publication has 25 references indexed in Scilit:
- Comparison of reconstruction accuracy and efficiency among autocalibrating data‐driven parallel imaging methodsMagnetic Resonance in Medicine, 2008
- Sparse MRI: The application of compressed sensing for rapid MR imagingMagnetic Resonance in Medicine, 2007
- Prepolarized magnetic resonance imaging around metal orthopedic implantsMagnetic Resonance in Medicine, 2006
- Reduction of blurring in view angle tilting MRIMagnetic Resonance in Medicine, 2005
- MRI of hip prostheses using single-point methods: In vitro studies towards the artifact-free imaging of individuals with metal implantsMagnetic Resonance Imaging, 2004
- Quantitative evaluation of metal artifact reduction techniquesJournal of Magnetic Resonance Imaging, 2004
- Particle disease. A comprehensive theory of periprosthetic osteolysis: a review.Biomedical Papers, 2002
- Magnetic resonance safety update 2002: Implants and devicesJournal of Magnetic Resonance Imaging, 2002
- Parameter relations for the Shinnar-Le Roux selective excitation pulse design algorithm (NMR imaging)IEEE Transactions on Medical Imaging, 1991
- Magnetization transfer contrast (MTC) and tissue water proton relaxation in vivoMagnetic Resonance in Medicine, 1989