Medical ImagingGenerated accuracy model review: 2026-05-06

Prostate Volume accuracy and testing

This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.

Formula source

**Volume = Width × Height × Length × 0.52** The factor 0.52 comes from the ellipsoid volume formula: $\frac{\pi}{6} \approx 0.523$.

Test cases

Default input regression check

Generated from the checked-in default inputs and calculate function.

Inputs

Width (Transverse): 4.5 cm
Height (AP): 3 cm
Length (Long): 3.5 cm

Expected outputs

Volume: 24.7 cc
Est. Weight: 24.7 g

Known limitations

This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
Use the result as a planning estimate unless the calculator page states a stricter purpose.

Assumptions

The gland is modeled as an ellipsoid, so irregular contour or zonal asymmetry can make the estimate less exact.
The result depends on consistent plane selection and measurement technique on the source exam.
Volume is one part of assessment and should not be interpreted as a diagnosis by itself.

Unit handling

Width (Transverse) accepts values in cm.
Height (AP) accepts values in cm.
Length (Long) accepts values in cm.
Volume is displayed in cc.
Est. Weight is displayed in g.

Rounding rules

Number displays use up to 2 decimal places in the calculator UI.

Version history

1.0.0 - 2026-05-06

Generated accuracy and testing page from the current prostate-volume-calculator calculator definition.

Change log

2026-05-06

Published default regression test documentation and metadata fallbacks for Prostate Volume.

Calculator transparency

Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.

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