Michael Devin Rivers-Bowerman MD, MSc, Presenter: Nothing to Disclose

Jonathan Hickle MD, Abstract Co-Author: Nothing to Disclose

Jane Slaunwhite, Abstract Co-Author: Nothing to Disclose

Sharon Elizabeth Clarke MD, PhD, Abstract Co-Author: Nothing to Disclose

Judy Ann Rowe MD, Abstract Co-Author: Nothing to Disclose

1. To develop an approach to identifying, evaluating, and classifying MRI artifacts. 2. To distinguish MRI artifacts from one another. 3. To review the characteristic appearances of traditional artifacts in abdominal MRI, including chemical shift, aliasing, truncation, zipper artifact, magnetic susceptibility, black boundary, random motion, phase-encoded motion, entry slice phenomenon, Moire fringes, radiofrequency overflow, center-point, and k-space errors. 4. To review the characteristic appearances of parallel MR imaging artifacts, including residual aliasing and noise enhancement. 5. To understand how each artifact is generated using the principles of MRI physics. 6. To learn how each artifact can be eliminated or reduced, and understand the effects of each approach on scan time and measures of image quality.  

1. Classification of artifacts into general categories, including patient factors (motion, tissue composition), signal processing and sampling, MR software, MR hardware, and room shielding. 2. Pictoral review of artifacts in abdominal MRI. 3. Discussion of how each artifact is generated using the principles of MRI physics, including an overview of parallel MR imaging. 4. Review available strategies for eliminating or reducing each artifact and potential drawbacks to each approach.  

http://abstract.rsna.org/uploads/2014/14014607/14014607_nlnt.pdf

Rivers-Bowerman, M, Hickle, J, Slaunwhite, J, Clarke, S, Rowe, J, Artifacts in Abdominal MRI: Principles and Solutions.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14014607.html