Volume 61, Issue 2 pp. 381-390
Full Paper

A multispectral three-dimensional acquisition technique for imaging near metal implants

Kevin M. Koch

Corresponding Author

Kevin M. Koch

Applied Science Laboratory, GE Healthcare, Waukesha, Wisconsin

GE Healthcare, Applied Science Laboratory, 3200 N. Grandview Blvd, W875, Waukesha, WI 53188===Search for more papers by this author
John E. Lorbiecki

John E. Lorbiecki

Applied Science Laboratory, GE Healthcare, Waukesha, Wisconsin

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R. Scott Hinks

R. Scott Hinks

Applied Science Laboratory, GE Healthcare, Waukesha, Wisconsin

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Kevin F. King

Kevin F. King

Applied Science Laboratory, GE Healthcare, Waukesha, Wisconsin

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First published: 22 January 2009
Citations: 229

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. © 2009 Wiley-Liss, Inc.

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