1. What is a Prostate Gland Volume Calculator?

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 volume formula:

Where:

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

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

3. Importance of Prostate Volume Calculation

Details: Prostate volume measurement helps in assessing BPH severity, planning surgical interventions, 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: How accurate is this calculation?
A: The ellipsoid formula provides a good estimation (±10-15%) when compared to more precise methods like planimetry.

Q2: What's a normal prostate volume?
A: Typically 20-30 cm³ in young men, often increasing with age (may exceed 40 cm³ in BPH).

Q3: How are the measurements obtained?
A: Usually via transrectal ultrasound (TRUS) or MRI, measuring the maximum dimensions in three orthogonal planes.

Q4: Can this calculate prostate weight?
A: Yes, multiply volume by 1.05 g/cm³ (average tissue density) to estimate weight in grams.

Q5: Why is π/6 used in the formula?
A: This is the ellipsoid volume constant, equivalent to approximately 0.52, which adjusts for the shape's geometry.