Adrenal Washout (CT) Calculator
Result
Adrenal Washout (CT) Calculator The Adrenal Washout Calculator works out the absolute and relative contrast washout of an adrenal nodule from CT attenuation values (in Hounsfield units). High washout is characteristic of a benign adrenal adenoma. Enter th — free online calculator.
Formula
- Adrenal Washout (CT) Calculator calculates its result from Unenhanced attenuation (HU), Enhanced / portal venous (HU), Delayed (15-min) attenuation (HU). It uses the formula APW = (Enhanced − Delayed) / (Enhanced − Unenhanced) × 100; RPW = (Enhanced − Delayed) / Enhanced × 100. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
- The main inputs are Unenhanced attenuation, Enhanced / portal venous, Delayed (15-min) attenuation. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Adrenal Washout (CT)
- Unenhanced attenuation: 10 HU
- Enhanced / portal venous: 80 HU
- Delayed (15-min) attenuation: 30 HU
Using Unenhanced attenuation (HU) = 10, Enhanced / portal venous (HU) = 80, Delayed (15-min) attenuation (HU) = 30, the calculated result is 62.5.
Sample result: Calculating…
Frequently asked questions
What does the Adrenal Washout (CT) calculate?
Adrenal Washout (CT) Calculator The Adrenal Washout Calculator works out the absolute and relative contrast washout of an adrenal nodule from CT attenuation values (in Hounsfield units). High washout is characteristic of a benign adrenal adenoma. Enter th — free online calculator.
Which values should I enter?
Enter Unenhanced attenuation, Enhanced / portal venous, Delayed (15-min) attenuation using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: APW = (Enhanced − Delayed) / (Enhanced − Unenhanced) × 100; RPW = (Enhanced − Delayed) / Enhanced × 100.
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.