1. What is Normal Splenic Size Ultrasound?

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

Purpose: It helps medical professionals assess spleen size, with normal range typically between 100-250 cm³ in adults.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

Explanation: The formula calculates the volume of an ellipsoid, which approximates the shape of a normal spleen.

3. Importance of Splenic Volume Measurement

Details: Accurate spleen size assessment helps diagnose conditions like splenomegaly (enlarged spleen) or splenic atrophy.

4. Using the Calculator

Tips: Enter the maximum length, width, and height measurements obtained from ultrasound. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the normal range for spleen volume?
A: Typically 100-250 cm³ in adults, but varies with body size and age.

Q2: How accurate is this calculation?
A: The ellipsoid formula provides a good estimate (±10-15%) compared to more precise methods.

Q3: When should I suspect splenomegaly?
A: When volume exceeds 300 cm³ or length >13 cm on ultrasound.

Q4: Does this work for pediatric patients?
A: Yes, but normal ranges differ by age and body size in children.

Q5: What's the clinical significance of spleen size?
A: Enlargement may indicate infection, liver disease, blood disorders, or malignancies.