GUS: Gastric Ultrasound
Gastric Ultrasound Companion
$0.99 · Designed for iPad. Not verified for macOS.
GUS is a focused gastric ultrasound calculator for clinicians using point-of-care ultrasound to estimate gastric volume.
Enter antral cross-sectional area, patient age, and patient weight to calculate estimated gastric volume and volume per kg. GUS displays a simple low-risk or high-risk interpretation using a 1.5 mL/kg threshold.
The app includes adult and paediatric calculation modes, age-range guardrails, and quick access to formula references.
Medical disclaimer: GUS is intended for use by qualified healthcare professionals as a calculation aid only. It does not provide a diagnosis or treatment recommendation and is not a substitute for independent clinical judgement. Results depend on the accuracy of the ultrasound measurements entered and should be interpreted alongside all relevant clinical information. Users should seek or confirm advice from an appropriately qualified doctor in addition to using GUS and before making medical decisions.
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The developer, Brandon Barks, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Brandon Barks
- Size
- 19.8 MB
- Category
- Medical
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment information
- Copyright
- © 2026 Brandon Barks
