Prostate Volume Formula:
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Definition: This calculator estimates the volume of the prostate gland using 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).
The calculator uses the ellipsoid volume formula:
Where:
Explanation: The formula approximates the prostate as an ellipsoid shape, providing a volume estimate from three orthogonal measurements.
Details: Prostate volume assessment helps in diagnosing BPH, planning surgical procedures, and determining appropriate medication dosages.
Tips: Enter the length, width, and height measurements in centimeters from ultrasound or MRI imaging. All values must be > 0.
Q1: What is a normal prostate volume?
A: Typically 20-30 cm³ in young adults, may increase with age (often >40 cm³ in BPH).
Q2: How accurate is this calculation?
A: It provides a good estimate but may differ slightly from actual volume due to prostate shape variations.
Q3: What imaging methods provide these measurements?
A: Transrectal ultrasound (TRUS) or MRI are commonly used to obtain prostate dimensions.
Q4: Why is prostate volume important?
A: Volume correlates with symptom severity in BPH and helps determine treatment approaches.
Q5: How does prostate volume relate to PSA levels?
A: Larger prostates often produce more PSA, but elevated PSA may also indicate cancer regardless of size.