# Gantry Radiology — Guideline Decision Support

> Guideline Decision Support (iPhone/iPad app by Josua Decker.)

- Source: https://appshunter.io/ios/app/gantry-radiology/id6762879998 (this page in markdown: same URL + `.md`)
- Developer: [Josua Decker](https://appshunter.io/developer/1895056414)
- Category: Education, Reference
- Price: Free
- Age rating: 17+
- Requires: iOS 15.1 · 24 MB
- Languages: English
- Released: 2026-04-28
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/gantry-radiology/id6762879998/reviews.md

## What is Gantry Radiology?

Gantry Radiology is a guideline-based decision support tool for radiologists and radiology teams.

CONTRAST SCREENING
Answer the questions you'd ask your patient anyway — get a traffic-light result with the guideline citation underneath.
• CA-AKI risk (ESUR 2025)
• NSF risk for MRI (ACR 2024)
• Metformin management (ESUR 2025)
• Thyroid assessment (ESUR 2025 / ETA 2021)
• Allergy & prior reactions (ESUR 2025)
• Pregnancy & lactation
• Paediatrics
• Special conditions (phaeochromocytoma, myasthenia gravis, sickle cell disease)

50+ CLASSIFICATION & SCORING FLOWS
Interactive, guided decision trees with bilingual report text (German/English):
• ACR RADS: LI-RADS v2018, PI-RADS v2.1, ACR TI-RADS, Lung-RADS v2022, BI-RADS v2025, O-RADS US/MRI, NI-RADS, C-RADS v2023, CAD-RADS 2.0, PSMA-RADS v2.0
• Neuro: ASPECTS, Fisher SAH, Marshall TBI, Spetzler-Martin, Fazekas, Hunt-Hess, BIFFL, NASCET
• Abdomen: Bosniak v2019, BCLC 2026, Kyoto/IAP 2024, Balthazar/CTSI, CDD, Hinchey, Child-Pugh, Adrenal Incidentaloma (ACR 2017)
• MSK/Spine: Pfirrmann, Modic, Denis, Schatzker, Garden, Pauwels, Neer, Rockwood, Mason, Weber, Tile, and more
• Vascular: Aortic dissection, aneurysm (ACC/AHA 2022), Endoleak, Fontaine, Haller Index
• Oncology: RECIST 1.1, Deauville/Lugano
• Lung: Fleischner 2017, S3 Guideline 2023

CLINICAL CALCULATORS
• eGFR (CKD-EPI 2021, Cockcroft-Gault)
• MESA CAC Percentile (age/sex/race-specific)
• Nadler Blood Volume
• GBCA Dosing (Gadovist, Dotarem, Prohance, Clariscan, Primovist)
• Adrenal Washout (APW / RPW)
• Brock Pulmonary Nodule Risk Model

EMERGENCY PROTOCOLS
Step-by-step protocols for acute contrast reactions (anaphylaxis, bronchospasm, hypotension) based on ERC 2021 and ESUR 2025.

KEY FEATURES
• Fully offline — works without internet after install
• No login, no account, no tracking, no AI, no ads
• Bilingual: German and English
• Dark mode
• Favourites
• Customisable thyroid lab reference ranges

IMPORTANT DISCLAIMER
Gantry is an educational and reference tool for medical professionals. It is not a medical device and does not replace clinical judgement. All clinical decisions remain the responsibility of the treating physician.

Sources: ESUR 2025, ACR 2024, LI-RADS v2018, ETA 2021, ERC 2021, and 60+ additional published guidelines. Full citations available in the app.


## Version history (last 2 releases)

### 1.0.6 — 2026-05-15

Bug fixes in some workflows.
Improved favourites.
Corrected spelling errors.

### 1.0.4 — 2026-04-28

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*