1. What is Normal Spleen Size in Adults?

Definition: This calculator estimates spleen volume using the ellipsoid formula based on length, width, and height measurements from radiological imaging.

Purpose: Helps radiologists and clinicians assess whether a spleen falls within normal size range (typically 100-250 cm³ in adults).

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 radiological volume estimation.

3. Importance of Spleen Volume Calculation

Details: Accurate spleen volume measurement helps diagnose splenomegaly (enlarged spleen) or splenic atrophy, which can indicate various pathological conditions.

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 length, 7-8 cm width, and 3-4 cm height in healthy adults.

Q2: What volume indicates splenomegaly?
A: Generally >250 cm³ suggests splenomegaly, but clinical correlation is needed.

Q3: How accurate is this estimation?
A: The ellipsoid formula has about 90% accuracy compared to volumetric CT measurements.

Q4: Can this be used for pediatric patients?
A: No, pediatric spleen sizes vary significantly with age - use pediatric references.

Q5: What imaging modality is best for measurement?
A: Ultrasound is most common, but CT or MRI provide more precise measurements.