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Adrenal Washout Calculator
Calculate CT absolute and relative adrenal washout for mass characterization
Radiological Formulas:
• $\text{Absolute Washout \%} = \frac{\text{Enhanced HU} - \text{Delayed HU}}{\text{Enhanced HU} - \text{Unenhanced HU}} \times 100$ (Threshold > 60% indicates adenoma)
• $\text{Relative Washout \%} = \frac{\text{Enhanced HU} - \text{Delayed HU}}{\text{Enhanced HU}} \times 100$ (Threshold > 40% indicates adenoma)
• $\text{Absolute Washout \%} = \frac{\text{Enhanced HU} - \text{Delayed HU}}{\text{Enhanced HU} - \text{Unenhanced HU}} \times 100$ (Threshold > 60% indicates adenoma)
• $\text{Relative Washout \%} = \frac{\text{Enhanced HU} - \text{Delayed HU}}{\text{Enhanced HU}} \times 100$ (Threshold > 40% indicates adenoma)
CT Attenuation Values Input (Hounsfield Units / HU)
Calculation Results
⚠️ Not medical advice. For educational and radiological decision support only. Always correlate CT washout metrics with formal radiologist interpretation and clinical context.