Normal Organ Volume Calculator - Radiology Assistant

Organ Volume Formula (Ellipsoid):

\[ V = \frac{π}{6} \times L \times W \times H \]

Organ Volume (cm³):

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1. What is a Normal Organ Volume Calculator?

Definition: This calculator estimates organ volume using the ellipsoid formula recommended by Radiology Assistant.

Purpose: Helps radiologists and clinicians estimate normal organ volumes from imaging measurements.

2. How Does the Calculator Work?

The calculator uses the ellipsoid formula:

\[ V = \frac{π}{6} \times L \times W \times H \]

Where:

\( V \) — Volume of organ (cm³)
\( L \) — Maximum length (cm)
\( W \) — Maximum width (cm)
\( H \) — Maximum height (cm)

Explanation: The formula approximates organ volume by modeling it as an ellipsoid shape.

3. Importance of Organ Volume Measurement

Details: Volume measurements help assess organomegaly, atrophy, treatment response, and are essential for surgical planning.

4. Using the Calculator

Tips: Enter maximum dimensions in centimeters from axial, sagittal, and coronal views. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Which organs can this calculator be used for?
A: Liver, spleen, kidneys, thyroid, prostate, and other solid organs.

Q2: How accurate is the ellipsoid method?
A: It provides reasonable estimates (within 10-20% of actual volume) for regularly shaped organs.

Q3: What are typical normal volumes for common organs?
A: Liver ~1500 cm³, spleen ~200 cm³, kidney ~150 cm³ (varies by size/sex).

Q4: Should measurements include or exclude organ capsule?
A: Include the capsule for consistency with standard measurement protocols.

Q5: How do I measure organ dimensions on imaging?
A: Use orthogonal planes (axial, sagittal, coronal) and measure the maximum dimension in each plane.