Gantry

Josua Decker

About this app

Gantry is an educational reference app for radiology topics — built as an interactive learning companion for radiology residents, radiographers, and students. Not a medical device. For learning and reference only, like an interactive textbook.

Content:

Contrast media reference (CT & MRI)
Reference summaries based on international guidelines (ESUR 2025, ACR 2024):
• Renal function / CA-AKI and NSF
• Metformin
• Thyroid dysfunction (TSH/fT3/fT4)
• Allergy / hypersensitivity
• Pregnancy & lactation
• Paediatrics
• Special conditions

Contrast media reactions
Reference overview of hypersensitivity reaction management, graded by severity.

Classifications
Guided reference for ACR RADS systems:
LI-RADS · PI-RADS · TI-RADS · Lung-RADS · BI-RADS · O-RADS · NI-RADS · C-RADS · CAD-RADS · PSMA-RADS · Bosniak · BCLC · Kyoto/IAP · Stanford/DeBakey · ASPECTS · Schatzker · Kellgren-Lawrence · Garden · Meyerding · AAST

Calculators
• eGFR (CKD-EPI 2021)
• Contrast media dose
• Blood volume (Nadler)
• GBCA dose

FOR LEARNING & REFERENCE
• German and English
• Dark mode
• No login, no data collection, offline

⚠️ Gantry is an educational reference tool — not a medical device. It does not replace clinical judgement or professional training.

What’s new

Version 1.0.2

• New: Clinical calculators (eGFR, MESA CAC, Nadler, GBCA, adrenal washout, Brock)
• New: Classification flows incl. LI-RADS, PI-RADS, TI-RADS, Lung-RADS, BI-RADS, O-RADS, C-RADS, CAD-RADS, PSMA-RADS, NI-RADS
• New: Additional scores (Bosniak, BCLC, Child-Pugh, RECIST, Deauville, Fleischner, Pfirrmann and many more)
• Favourites, dark mode, language toggle
• Updated guidelines: ESUR 2025, ACR 2024, LI-RADS v2018
• Numerous clinical and linguistic corrections