For Patients
What Does TR4 Mean on a Thyroid Ultrasound?
TR4 on a thyroid ultrasound means moderately suspicious with ~9% cancer risk. Learn what it means, whether biopsy…
ACR TI-RADS · 2017 White Paper
Score a thyroid nodule in seconds.
Enter the five ultrasound features and nodule size to get the ACR TI-RADS category, estimated malignancy risk, and a size-based biopsy or follow-up recommendation.
Built for radiologists & residents
Explained for patients
ACR TI-RADS · 2017 White Paper
TI-RADS Calculator
Score a thyroid nodule across five ultrasound features to get its ACR TI-RADS category, estimated malignancy risk, and a size-based biopsy or follow-up recommendation.
Total points
0pts
TR1
Benign
Recommendation
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Complete the features
Select one option in each category above.
Educational use only.
This calculator implements the ACR TI-RADS (2017) point system for reference and learning. It is not endorsed by the American College of Radiology and is not a substitute for professional clinical judgment. Management decisions must be made by a qualified radiologist, endocrinologist, or physician who integrates the full clinical picture. Do not use it to self-diagnose.
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