Radiology Calculators

Evidence-based clinical decision support tools organized by anatomical system

Radiology calculators by anatomical system

Browse Radionox's free radiology calculators organized by anatomical system. Each tool implements an official scoring guideline — from chest (Lung-RADS, Fleischner) and cardiac (CAC-DRS, CAD-RADS) to thyroid (ACR TI-RADS) — and returns a standardized category with management guidance and report-ready output.

Chest

Pulmonary and thoracic imaging calculators

Lung-RADS

ACR Lung-RADS® 2022 calculator for lung cancer screening CT interpretations

ACR Guidelines

Incidental Pulmonary Nodules

2017 Fleischner Society guidelines for incidental nodule management

Fleischner Society

Chemical Shift Ratio (Thymus)

CSR & SII for differentiating thymic hyperplasia from tumor on MRI

Priola 2015

Cardiac

Cardiovascular imaging calculators

Calcium Score

Coronary Artery Calcium (CAC-DRS) scoring based on SCCT 2018 consensus guidelines

SCCT Guidelines

CAD-RADS 2.0

Coronary Artery Disease assessment based on 2022 CAD-RADS consensus

2022 Consensus

Cardiac Iron (MRI)

T2* based cardiac iron concentration for iron overload assessment

Validated Calibrations

Abdomen

Abdominal and pelvic imaging calculators

Liver Iron (MRI)

T2* and R2* based hepatic iron concentration at 1.5T and 3T

Validated Calibrations

Endocrine / Head & Neck

Thyroid and head & neck imaging calculators

ACR TI-RADS (Thyroid)

Thyroid nodule risk stratification with Standard ACR TI-RADS (Tessler 2017) and AI-Optimized variant (Wildman-Tobriner 2019)

ACR + AI Variant

Neuro

Neuroimaging calculators

Coming Soon

Neuroimaging calculators coming soon

Musculoskeletal

MSK imaging calculators

Coming Soon

MSK imaging calculators coming soon