Causes and Cures of MR Artifacts: Motion and Wrap (Aliasing)
MRI artifacts are a common challenge that can impact image quality and diagnostic accuracy. This session focuses on the identification, causes, and correction of motion and wrap (aliasing) artifacts. Participants will review the primary types of MRI artifacts and examine how motion and data sampling errors contribute to image distortion. Key concepts such as slice over-sampling, No Frequency Wrap, and the Nyquist Theorem will be introduced in a practical context. Strategies to reduce artifacts—including patient management, parameter adjustments, and motion reduction sequences—will be discussed to support improved image quality and clinical outcomes.
Learning Objectives
- Describe what Slice over-sampling and No Frequency Wrap is.
- Describe/state ways to lessen the artifact.
- Identify the different types of artifacts.
- Describe what Motion reduction sequence are and how they work.
- Describe/state ways to lessen the artifact.
Stephen J. Powers BSRT(R),MRI),(CT),(ARMRIT)
Radiologic Technologists
This course has been approved for one (1.0) ARRT Category A CE credit(s) by AHRA.
Radiology Administrators
This course meets all CRA renewal credit criteria and has been approved for one (1.0) continuing education credit in the following CRA domain(s): Operations Management (OM).
Available Credit
- 1.00 AHRA CRA Credit
- 1.00 ARRT Category A CE Credit
Price
Required Hardware/software
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