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Updated: Aug 4, 2026

Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring
Published on: December 10, 2010
Spiral readout gradients for the reduction of motion artifacts in chemical shift imaging
Dong-Hyun Kim1, Elfar Adalsteinsson, Daniel M Spielman
1Radiological Sciences Laboratory, Department of Radiology, Stanford University, Stanford, California, USA. dhkim@stanford.edu
Abstract:
A motion artifact reduction method for proton chemical shift imaging (CSI) is presented. The method uses spiral-based readout gradients for data acquisition. A characteristic of spiral-based readout gradients is that data are repeatedly sampled at the kxy origin. These data points are used to estimate and correct for motion-induced phase variations. Both phantom and in vivo spectra reconstructed using the new motion artifact reduction algorithm showed significant signal-to-noise ratio (SNR) improvements as compared to uncorrected data.
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