USC Prostate Volume Calculator

Prostate Volume Formula:

\[ V = \frac{\pi}{6} \times L \times W \times H \]

Prostate Volume (cm³):

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1. What is a USC Prostate Volume Calculator?

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

Purpose: It helps medical professionals assess prostate size for diagnostic and treatment planning purposes.

2. How Does the Calculator Work?

The calculator uses the ellipsoid formula:

\[ V = \frac{\pi}{6} \times L \times W \times H \]

Where:

\( V \) — Prostate volume (cubic centimeters)
\( L \) — Length (cm)
\( W \) — Width (cm)
\( H \) — Height (cm)

Explanation: The formula approximates the prostate as an ellipsoid shape, which is a common method in urological practice.

3. Importance of Prostate Volume Calculation

Details: Prostate volume assessment helps diagnose conditions like BPH (benign prostatic hyperplasia), guides treatment decisions, and monitors disease progression.

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 in young men, may increase to 30-50 cm³ with age due to BPH.

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

Q3: What imaging methods provide these measurements?
A: Transrectal ultrasound (TRUS) is most common, but MRI can also be used.

Q4: Why use π/6 in the formula?
A: This is the mathematical constant for calculating the volume of an ellipsoid.

Q5: How does volume relate to prostate weight?
A: Volume in cm³ roughly equals weight in grams (density ~1.05 g/cm³).