1. What is Prostate Volume Calculation?

Definition: This calculator estimates the volume of the prostate gland using the ellipsoid formula based on length, width, and height measurements.

Purpose: It helps medical professionals assess prostate size which is important for diagnosing conditions like benign prostatic hyperplasia (BPH).

2. How Does the Calculator Work?

The calculator uses the ellipsoid formula:

Where:

• \( V \) — Volume of prostate (cm³)
• \( L \) — Length (cm)
• \( W \) — Width (cm)
• \( H \) — Height (cm)

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

3. Importance of Prostate Volume Measurement

Details: Prostate volume assessment helps in diagnosing BPH, planning surgical procedures, and evaluating prostate cancer risk.

4. Using the Calculator

Tips: Enter the prostate dimensions (length, width, height) in centimeters as measured by ultrasound or MRI. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a normal prostate volume?
A: Typically 20-30 cm³ for young men, may increase to 30-50 cm³ with age.

Q2: How accurate is this calculation?
A: It provides a good estimate but may vary ±15% from actual volume due to prostate shape variations.

Q3: What imaging methods are used to measure dimensions?
A: Transrectal ultrasound (TRUS) is most common, but MRI can also be used.

Q4: How does prostate volume relate to PSA levels?
A: Generally, larger prostates produce more PSA, but this isn't a direct linear relationship.

Q5: When is prostate volume measurement clinically important?
A: For BPH evaluation, surgical planning, and when PSA levels are elevated.