Numerical modeling of needle tip artifacts in MR gradient echo imaging
Abstract
Exact determination of needle tip position is obsolete for interventional procedures under control of magnetic resonance imaging (MRI). Exact needle tip navigation is complicated by the paramagnetism of microsurgical instruments: Local magnetic field inhomogeneities are induced resulting in position encoding artifacts and in signal voids in the surrounding of instruments and especially near their tips. The artifacts generated by the...
Paper Details
Title
Numerical modeling of needle tip artifacts in MR gradient echo imaging
Published Date
Feb 20, 2004
Journal
Volume
31
Issue
3
Pages
579 - 587
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Notes
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