Splenic Volume Calculator CT

Spleen Volume Formula:

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

Spleen Volume (cm³):

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1. What is a Splenic Volume Calculator CT?

Definition: This calculator estimates the volume of the spleen using CT measurements based on the ellipsoid formula.

Purpose: It helps medical professionals assess spleen size for diagnostic and monitoring purposes.

2. How Does the Calculator Work?

The calculator uses the ellipsoid formula:

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

Where:

\( V \) — Volume of spleen (cm³)
\( L \) — Maximum longitudinal length (cm)
\( W \) — Maximum transverse width (cm)
\( H \) — Maximum anteroposterior height (cm)

Explanation: The formula approximates the spleen as an ellipsoid shape, which is a common method for volume estimation in radiology.

3. Importance of Splenic Volume Calculation

Details: Accurate spleen volume measurement helps diagnose splenomegaly, monitor disease progression, and assess treatment response.

4. Using the Calculator

Tips: Enter the maximum measurements in centimeters from CT images. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation method?
A: The ellipsoid formula provides a good estimation (±10-15%) compared to more precise methods like planimetry.

Q2: What is a normal spleen volume?
A: Typically 150-200 cm³ in adults, but varies with body size and age.

Q3: When is splenic volume measurement clinically important?
A: For evaluating splenomegaly, portal hypertension, hematologic disorders, and monitoring spleen size changes.

Q4: How do I measure spleen dimensions on CT?
A: Use the longest axis in each plane (length, width, height) from properly oriented CT images.

Q5: Does this replace volumetric analysis software?
A: No, but it provides a quick estimation when dedicated software isn't available.