📐 Thyroid Volume (ellipse factor 0.523)
Thyroid volume with ellipse factor 0.523.
Clinical takeaway
Brunn π/6; measurement error matters.
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When to use
Ultrasound diameter volume estimate.
How it works
V=0.523×L×W×D per lobe.
Key points
- Brunn π/6; measurement error matters.
References
- Brunn ellipsoid thyroid volume factor ≈0.523
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Left lobe length | 5 cm |
|---|---|
| Left lobe width | 2 cm |
| Left lobe depth | 2 cm |
| Right lobe length | 5 cm |
| Right lobe width | 2 cm |
| Right lobe depth | 2 cm |
→total20.92mL
- L：10.46 mL
- R：10.46 mL
- isthmus：0 mL
Frequently asked questions
- What is Thyroid Volume (ellipse factor 0.523)?
- Thyroid volume with ellipse factor 0.523.
- How is Thyroid Volume (ellipse factor 0.523) calculated? What is the core formula?
- V=0.523×L×W×D per lobe.
- When is Thyroid Volume (ellipse factor 0.523) used?
- Ultrasound diameter volume estimate.
- What are the key clinical points for Thyroid Volume (ellipse factor 0.523)?
- Brunn π/6; measurement error matters.
- What are the limits and cautions when using Thyroid Volume (ellipse factor 0.523)?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- How is Thyroid Volume (ellipse factor 0.523) calculated in practice? Can you show a worked example?
- Inputs: Left lobe length 5 cm, Left lobe width 2 cm, Left lobe depth 2 cm, Right lobe length 5 cm, Right lobe width 2 cm, Right lobe depth 2 cm → Result: total 20.92 mL（L: 10.46 mL, R: 10.46 mL, isthmus: 0 mL）
💬 Peer discussion
Licensed clinicians only — about this Tool · Thyroid volume
Do not share identifiable patient information (PHI). Discuss principles and workflow only — not a substitute for clinical judgement.
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