Prostate Volume Calculator – Ultrasound Measurement
Calculate prostate volume from ultrasound measurements
How to Use
- Obtain length, width, and height measurements from ultrasound
- Enter each measurement in centimeters
- Click calculate to see prostate volume
- Review the status and interpretation
What is Prostate Volume?
Prostate volume is a measurement of prostate gland size, typically obtained through transrectal ultrasound (TRUS). The ellipsoid formula (Length × Width × Height × 0.52) is the standard method for calculating prostate volume from ultrasound measurements.
Prostate volume helps assess benign prostatic hyperplasia (BPH), monitor treatment effectiveness, and guide clinical decisions regarding prostate health.
Volume Interpretation
| Volume Range | Classification | Clinical Significance |
|---|---|---|
| < 30 mL | Normal | Typical adult prostate size |
| 30 - 50 mL | Enlarged | Mild to moderate BPH |
| > 50 mL | Significantly Enlarged | Moderate to severe BPH |
Clinical Applications
Prostate volume measurement is used for:
- Diagnosing and monitoring benign prostatic hyperplasia (BPH)
- Determining appropriate treatment options
- Calculating PSA density (PSA/prostate volume)
- Monitoring response to medical therapy
- Planning surgical interventions
Measurement Accuracy
Accurate prostate volume measurement depends on proper ultrasound technique and measurement placement. Measurements should be taken at the maximum dimensions in each plane. Consult with a qualified healthcare provider for proper interpretation of results.
Frequently Asked Questions
- What is a normal prostate volume?
- A normal adult prostate volume is typically less than 30 mL. However, prostate size naturally increases with age, and what's considered normal can vary by individual factors.
- How is prostate volume measured?
- Prostate volume is most commonly measured using transrectal ultrasound (TRUS). The length, width, and height are measured, then calculated using the ellipsoid formula (L × W × H × 0.52).
- What does an enlarged prostate mean?
- An enlarged prostate (BPH - benign prostatic hyperplasia) is a common condition as men age. It can cause urinary symptoms but is not cancerous. Volumes over 30 mL are generally considered enlarged.
- Can prostate volume indicate cancer?
- Prostate volume alone cannot diagnose cancer. However, PSA density (PSA level divided by prostate volume) can help distinguish between BPH and potential cancer. Always consult a healthcare provider for proper evaluation.