Prostate Volume Calculator CT

Prostate Volume Formula:

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

Prostate Volume (cm³):

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1. What is Prostate Volume Calculator CT?

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

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 (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 from CT measurements.

3. Importance of Prostate Volume Calculation

Details: Accurate prostate volume measurement is crucial for diagnosing benign prostatic hyperplasia (BPH), planning surgical interventions, and assessing cancer risk.

4. Using the Calculator

Tips: Enter the maximum dimensions in three orthogonal planes (length, width, height) as measured on CT. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this method?
A: The ellipsoid formula provides a good estimation (±10-15%) compared to more precise methods like planimetry.

Q2: What's a normal prostate volume?
A: Typically 15-30 cm³ in young men, often increasing with age (may exceed 100 cm³ in BPH).

Q3: How do I measure dimensions on CT?
A: Use axial images for width and height, sagittal reconstructions for length. Measure the largest dimension in each plane.

Q4: Can I use this for ultrasound measurements?
A: Yes, the same formula applies to TRUS (transrectal ultrasound) measurements.

Q5: How do I convert cm³ to mL?
A: They are equivalent (1 cm³ = 1 mL) for practical purposes.