ACR TI-RADS Calculator for Thyroid Nodules Calculator

ACR TI-RADS Calculator for Thyroid Nodules Calculator for Endocrinology. Use the category and size to support ultrasound follow-up or fine-needle aspiration recommendations.

How this calculator works

ACR TI-RADS scores thyroid nodule ultrasound composition, echogenicity, shape, margin, and echogenic foci to guide follow-up or biopsy thresholds.

Inputs used

  • Composition
  • Echogenicity
  • Shape
  • Margin
  • Echogenic foci
  • Nodule size

Clinical interpretation

Use the category and size to support ultrasound follow-up or fine-needle aspiration recommendations.

Limitations and safety notes

Clinical risk, suspicious lymph nodes, prior cancer, radiation exposure, compressive symptoms, and local radiology practice affect decisions.

References

  • Tessler FN, Middleton WD, Grant EG, et al. ACR Thyroid Imaging, Reporting and Data System. J Am Coll Radiol. 2017.
  • American Thyroid Association thyroid nodule guideline resources.

Editorial review and citation methodology

Reviewed by the Quick Medical Calculator Editorial Team. Last reviewed: July 1, 2026. The review checks calculator inputs, intended population, interpretation, limitations, and source alignment.

  • Prefer original validation studies for scoring systems and prediction tools.
  • Use current specialty society guidance, transplant allocation policy, public health guidance, or regulator resources when they govern clinical use.
  • Include limitations and safety notes when a calculator is population-specific, context-dependent, or unsuitable as a standalone decision tool.

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