Adrenal Nodule Washout (APW / RPW) — free guideline decision tool
Turn adrenal washout into a tool: enter unenhanced/enhanced/delayed HU to compute APW and RPW, flag adenoma at APW ≥60% or RPW ≥40%, and reconcile with the unenhanced-HU context. Instant, browser-side.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Common questions
What does Adrenal Nodule Washout (APW / RPW) do?
Characterizing adrenal incidentalomas (unenhanced > 10 HU, or no unenhanced series): adenoma (incl. lipid-poor) vs lesions needing further workup. HU measurement is done by the radiologist.
How is the result calculated?
APW = (E−D)/(E−U)×100 (needs unenhanced); RPW = (E−D)/E×100 (used when no unenhanced). Thresholds: APW ≥60% or RPW ≥40% suggests adenoma.
Is this a substitute for clinical judgement?
No. All results are decision-support only, for licensed clinicians. They must be individualized to the whole patient and the latest guideline version.
Run Adrenal Nodule Washout (APW / RPW) now
Turn adrenal washout into a tool: enter unenhanced/enhanced/delayed HU to compute APW and RPW, flag adenoma at APW ≥60% or RPW ≥40%, and reconcile with the unenhanced-HU context. Instant, browser-side.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.