Slice-overlap artifact
Citation, DOI, disclosures and article data
At the time the article was created J. Ray Ballinger had no recorded disclosures.
View J. Ray Ballinger's current disclosuresAt the time the article was last revised Yaïr Glick had no recorded disclosures.
View Yaïr Glick's current disclosures- Cross-talk artefact
- Slice overlap artefact
- Cross talk artefact
- Cross talk artifact
- Cross-talk artifact
- Slice-overlap artefact
- Slice overlap artifact
The slice-overlap artifact, also known as cross-talk artifact, is a type of MRI artifact, namely, the loss of signal seen in an image from a multi-angle, multi-slice acquisition, as is obtained commonly in the lumbar spine. It should not be confused with cross excitation which although similar in causation, is not due to angled images.
If the slices obtained at different disk spaces are not parallel, they may overlap. If two levels are acquired at the same time, e.g. L4-L5 and L5-S1, the level acquired second will include spins that have already been saturated. This causes a horizontal band of signal loss crossing the image, usually most pronounced posteriorly. The dark horizontal band at the bottom of the following axial image through the lumbar spine demonstrates this artifact.
As long as the saturated area stays posterior to the spinal canal, it causes no meaningful degradation to the image.
References
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- 2. Patton J, Kulkarni M, Craig J et al. Techniques, Pitfalls and Artifacts in Magnetic Resonance Imaging. Radiographics. 1987;7(3):505-19. doi:10.1148/radiographics.7.3.3448645 - Pubmed
- 3. Lipton M. Totally Accessible MRI. 2008. doi:10.1007/978-0-387-48896-7
- 4. Hani H. Abujudeh, Michael A. Bruno, Professor Radiology and Medicine F A C R Michael A Bruno. Radiology Noninterpretive Skills: The Requisites. (2017) ISBN: 9780323462976 - Google Books
- 5. Budrys T, Veikutis V, Lukosevicius S, Gleizniene R, Monastyreckiene E, Kulakiene I. Artifacts in Magnetic Resonance Imaging: How It Can Really Affect Diagnostic Image Quality and Confuse Clinical Diagnosis? J VIBROENG. 2018;20(2):1202-13. doi:10.21595/jve.2018.19756
- 6. Lee S, Cho J, Lee H et al. A Study on a Method to Reduce the Effect of the Cross-Talk Artifact in a Simultaneous, Multiple-Slice, Plane, Oblique MRI Scan. Journal of the Korean Physical Society. 2012;61(5):807-14. doi:10.3938/jkps.61.807
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