The role of susceptibility effects in the production of artifacts in chemical shift images generated by the selective excitation technique is discussed. The effects are demonstrated in images of phantom samples of agarose gels containing small air bubbles. The artifacts can lead to erroneous interpr
Chemical shift artifact along the section-select axis
✍ Scribed by Ronald H. Wachsberg; Donald G. Mitchell; Matthew D. Rifkin; Simon Vinitski; Talin A. Tasciyan
- Book ID
- 102375546
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 305 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1053-1807
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✦ Synopsis
Abstract
Chemical shift artifact (CSA), familiar to radiologists along the frequency‐encoding axis, also occurs along the section‐select axis. The authors observed a case in which CSA mimicked a renal mass. Subsequent retrospective analysis of 50 abdominal magnetic resonance (MR) imaging studies was performed to assess occurrence of CSA adjacent to the upper and lower renal poles. CSA along the section‐select axis was observed in 76% of cases and adjacent to 39% of all renal poles imaged. CSA along the section‐select axis is common in abdominal MR imaging and may occasionally mimic disease.
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