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Radiology guideline calculators
Free, no sign-in required. Each tool reproduces the published decision table in full, so you can check the branch you landed on rather than trusting a black box.
Fleischner Society pulmonary nodule follow-up calculator
Free Fleischner Society 2017 calculator for incidental pulmonary nodules. Enter nodule type, size, multiplicity and risk to get the published CT follow-up interval, with the full decision table.
ACR TI-RADS thyroid nodule calculator
Free ACR TI-RADS 2017 calculator. Score composition, echogenicity, shape, margin and echogenic foci to get the TR level, FNA threshold and follow-up size cut-off.
Bosniak classification of cystic renal masses (2019)
Bosniak 2019 classification reference: defining features, malignancy risk and management for classes I, II, IIF, III and IV, with the version-2019 caveats that change reporting.
Lung-RADS v2022 calculator
Free Lung-RADS v2022 calculator for screening LDCT. Enter nodule type, size and whether it is new or growing to get the category, malignancy estimate and management, with the full table.
PI-RADS v2.1 calculator
Free PI-RADS v2.1 calculator. Enter zone plus T2, DWI and DCE findings to get the overall assessment category, with the zone-dependent rules that catch most readers out.
Breast MRI screening eligibility
Which patients qualify for annual screening breast MRI under the ACS and ACR high-risk criteria — and why the Gail model is the wrong instrument for the 20% lifetime-risk threshold.
LI-RADS v2018 calculator
Free LI-RADS v2018 CT/MRI calculator. Enter size and the major features to get the diagnostic category, with the exclusions (LR-TIV, LR-1/2, LR-M) applied in the order the algorithm specifies.
O-RADS adnexal lesion reference
O-RADS ultrasound and MRI risk categories side by side: definitions, malignancy risk and management, plus the colour score and the caveats that change what you report.
Adrenal CT washout calculator
Free adrenal washout calculator. Enter unenhanced, portal venous and 15-minute delayed HU to get absolute and relative washout with the adenoma thresholds (≥60% / ≥40%) and the pitfalls that make washout unreliable.
Nodule volume doubling time calculator
Free volume doubling time (VDT) calculator for pulmonary nodules. Two diameters + the scan interval give the VDT with interpretation bands (<100, 100-400, >400 days) and the subsolid caveat.
Why these exist
MyRadAgent applies these guidelines automatically inside a report. These pages expose the same logic on its own, for the times you just need the answer. If you want the recommendation written into the report instead, that is what the product does.
This calculator, written into your report for you
MyRadAgent drafts the full report - and applies this guideline automatically, with the category and follow-up in the impression. Free trial runs in the browser: 100 reports over 14 days, no card, no IT ticket.
Try it on a report → or watch it live first — no signup →This is a reference implementation of a published guideline, for use by qualified clinicians. It does not account for patient-specific factors and is not a substitute for clinical judgment or a formal radiology consultation. See our full disclaimer.