Abstract
We have become increasingly aware of the presence of a type of image artifact normally appearing in anechoic areas (eg, cyst, bladder, gallbladder) and giving the appearance of 'sludge' or 'debris'. These artifactual echoes may be caused by the fact that the finite width of the 0,2154 transducer beam pattern produces a finite thickness of the patient scan plane. All echoes produced in this 'thick' scan plane are misinterpreted as being due to structures in the normally assumed 'thin' scan plane. We have tested and verified this hypothesis by simulating soft tissue interfaces with 400 grit silicon carbide sandpaper in a water tank. A set of clues are proposed to enable the rapid identification of these artifacts.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 365-375 |
| Number of pages | 11 |
| Journal | Journal of Clinical Ultrasound |
| Volume | 9 |
| Issue number | 7 |
| DOIs | |
| State | Published - Sep 1981 |
| Externally published | Yes |
Keywords
- Acceptance tests
- Beam pattern
- False debris
- Gallbladder sludge
- Image artifact
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
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Cite this
Goldstein, A., & Madrazo, B. L. (1981). Slice‐thickness artifacts in gray‐scale ultrasound. Journal of Clinical Ultrasound, 9(7), 365-375. https://doi.org/10.1002/jcu.1870090704