Multiplanar Ultrasonographic Assessment of Gastric Volume: A Prospective Observational Study
Authors' conclusion
Notable differences exist between gastric ultrasonography measurement planes. When applying existing predictive models, measurements obtained from the higher-measured gastric volume plane provide greater accuracy.
Study context
- Population
- Fasted volunteers scanned before and after ingesting apple juice 2.3 ml/kgvolunteers analysed
- Participants
- 196 volunteers
- Exposure
- Gastric ultrasonography at abdominal aorta plane vs inferior vena cava (IVC) plane
- Outcome
- Agreement between predicted ingested volume and actual ingested volume by measurement plane
Main finding
As reported in the abstract
Predicted vs actual gastric volume
| Group | Bias | P |
|---|---|---|
| Higher-measured gastric volume plane | −4.27 ml | P = 0.076 |
Higher-measured gastric volume plane
Bias−4.27 ml
PP = 0.076
Observational data: associations, not effects.
Further findings
| Outcome | P value |
|---|---|
| Abdominal aorta vs IVC plane measurements, low and high gastric volume statesDiffered significantly in both states | P < 0.001 |
Original publication
Multiplanar Ultrasonographic Assessment of Gastric Volume: A Prospective Observational Study. Anesthesiology. Published 23 February 2026. doi:10.
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