How to Identify and Avoid Artifacts on DWI

  • Javier Sánchez-González


In this chapter, a very detailed overview of the acquisition parameters of the DWI sequence is presented. Image quality issues like signal to noise ratio and image artifacts are exposed from different points of view, focusing on the most adequate acquisition strategies to improve DWI exams. Clinical examples of three different acquisition approaches are shown to illustrate improvements in signal to noise ratio of the images. Besides, the adequate use of acquisition bandwidth and parallel acquisition reconstruction techniques are also exemplified, using clinical images, to reduce geometrical image distortion. Finally, some technical solutions are proposed to overcome other artifacts, such as eddy currents, movement, or dielectric artifacts either on 1.5 or 3T magnets


Eddy Current Gradient Strength Magnetic Field Inhomogeneity Body Application Readout Bandwidth 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Philips Healthcare IberiaMadridSpain

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