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Abstract #4244

Assessing Phase Variations in Gradient Induced Spatial Modulation of Magnetization (SPAMM)

Lukas Pirpamer1, Gernot Reishofer2, Stefan Ropele1

1Department of Neurology, Medical University of Graz, Graz, Styria, Austria; 2Department of Radiology, Medical University of Graz, Graz, Styria, Austria

Non-linearities of gradient fields can cause a shift of the modulation function when SPAMM is used for image tagging. For certain application such as high resolution imaging with the microSPAMM technique, these shifts can seriously affect image reconstruction even if they are small. In this experimental work a new method for assessing these gradient induced variations of the modulation function is proposed. First phantom measurements demonstrate the feasibility and the advantage over existing methods.

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Keywords

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