1. What is Prostate Volume Measurement?

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

Purpose: It helps urologists and radiologists assess prostate size 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 ultrasound volume estimation.

3. Importance of Prostate Volume Measurement

Details: Accurate volume measurement helps in assessing prostate health, planning treatments, and monitoring disease progression.

4. Using the Calculator

Tips: Enter the three orthogonal measurements (length, width, height) in centimeters obtained from transrectal or transabdominal ultrasound.

5. Frequently Asked Questions (FAQ)

Q1: What is a normal prostate volume?
A: Typically 20-30 cm³ in young men, may increase with age (BPH can cause volumes >40 cm³).

Q2: How accurate is this method?
A: The ellipsoid formula is about 85-90% accurate compared to actual prostate volume.

Q3: What's the clinical significance?
A: Volume >30 cm³ often correlates with lower urinary tract symptoms; >80 cm³ may require surgical intervention.

Q4: Can this be used for prostate cancer assessment?
A: While volume is important, cancer diagnosis requires additional parameters like PSA and biopsy.

Q5: How to convert cm³ to grams?
A: Multiply by 1.05 (prostate tissue density) to estimate weight in grams.