A method to reduce systematic spatial shift associated with magnetic resonance imaging.

J M Taha; M A Lamba; C Samaratunga; J C Breneman; R E Warnick

doi:10.1159/000099678

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A method to reduce systematic spatial shift associated with magnetic resonance imaging.

J M Taha·M A Lamba·C Samaratunga·J C Breneman·R E Warnick

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Abstract

To reduce the chemical shifts during magnetic resonance (MR) imaging, the authors replaced the petroleum gel in the Brown-Roberts-Well (BRW) MR localizer with chromium chloride. Computed tomography and MR scans were obtained of a phantom skull containing objects with known spatial coordinates. A 2-to 3-mm systematic spatial shift in the frequency-encoded direction was observed with petroleum gel, but not with CrCl3. Results were verified by reconstructing the three-dimensional spatial location of each object using X-Knife computer software. The authors conclude that spatial localization is more accurate with a CrCl3-filled than a petroleum-filled BRW-MR localizer.

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Chlorides Chromium Compounds Gels Humans Image Processing, Computer-Assisted Magnetic Resonance Imaging Petroleum Phantoms, Imaging Skull Stereotaxic Techniques Tomography, X-Ray Computed Journal Article

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J M Taha, M A Lamba, C Samaratunga, J C Breneman, R E Warnick. 1996. A method to reduce systematic spatial shift associated with magnetic resonance imaging.. https://doi.org/10.1159/000099678

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