1. What is a Normal Spleen Size Calculator?

Definition: This calculator estimates spleen volume based on ellipsoid measurements obtained from imaging studies.

Purpose: It helps medical professionals assess spleen size for clinical evaluation of splenomegaly or other conditions.

2. How Does the Calculator Work?

The calculator uses the ellipsoid formula:

Where:

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

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

3. Importance of Spleen Volume Calculation

Details: Accurate spleen volume measurement helps diagnose conditions like portal hypertension, hematologic disorders, and infections.

4. Using the Calculator

Tips: Enter measurements obtained from ultrasound, CT, or MRI in centimeters. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What are normal spleen dimensions?
A: Typically 10-12 cm in length, 7-8 cm in width, and 3-4 cm in height in healthy adults.

Q2: What's considered splenomegaly?
A: Generally when length exceeds 12 cm or volume > 450 cm³, though thresholds vary by patient size.

Q3: How accurate is this method?
A: It provides good approximation (±10%) compared to more complex methods, suitable for clinical use.

Q4: Can I use this for pediatric patients?
A: Yes, but normal ranges differ by age and body size - consult pediatric references.

Q5: How does spleen volume correlate with weight?
A: Volume better reflects pathological enlargement than single linear measurements.