Purpose of This Website
The information, tools, and content provided on tirads-calculator.com/ (“the Site”), including the TI-RADS calculator, reference charts, blog articles, and all associated materials, are intended strictly for general educational and informational purposes. Nothing on this Site constitutes medical advice, clinical diagnosis, or a professional treatment recommendation.
The Calculator Is Not a Diagnosis
The TI-RADS calculator on this Site implements the American College of Radiology (ACR) TI-RADS 2017 point system. It allows users to input ultrasound features and receive a calculated category (TR1 through TR5), an estimated malignancy risk percentage, and a general size-based recommendation regarding fine needle aspiration (FNA) biopsy or follow-up ultrasound.
This output is a mathematical reference calculation based on the features you select. It is not a clinical determination about any specific patient or medical situation. Actual thyroid nodule management requires comprehensive evaluation that includes the full clinical picture, image quality assessment, operator experience, laboratory results, patient history, physical examination findings, and the professional judgment of a qualified physician.
No Affiliation with the ACR
This Site is an independent educational resource. It is not affiliated with, endorsed by, sponsored by, or officially connected to the American College of Radiology (ACR) in any capacity. The terms “TI-RADS,” “ACR TI-RADS,” and “ACR” are used solely for descriptive and educational purposes to identify the published scoring system this tool references.
Always Seek Professional Medical Care
Do not use this Site as a substitute for professional medical advice, diagnosis, or treatment. Never disregard, avoid, or delay seeking medical advice from a radiologist, endocrinologist, surgeon, or other qualified healthcare professional because of information you read or a score you calculated on this Site.
If you have a thyroid nodule, have received an ultrasound report, or have any concerns about your thyroid health, consult your own physician for proper evaluation and guidance tailored to your individual circumstances.
In a medical emergency, contact your local emergency services or go to the nearest emergency room immediately.
No Doctor–Patient Relationship
Using this Site, including the calculator and reading any content, does not establish a doctor–patient relationship, a provider–patient relationship, or any professional healthcare relationship between you and tirads-calculator.com/, its owner, its contributors, or any affiliated party.
Accuracy and Limitations
While we make every reasonable effort to ensure the calculator logic and educational content accurately reflect the ACR TI-RADS 2017 white paper (Tessler et al., Journal of the American College of Radiology, 2017;14:587–595) and current peer-reviewed medical literature, medicine is an evolving field and errors can occur.
We make no warranty or guarantee, whether express or implied, that any information, tool output, or content on this Site is complete, accurate, current, reliable, or error-free. All tools and content are provided on an “as is” basis. You use the Site and its tools entirely at your own risk.
For Healthcare Professionals
If you are a physician, radiologist, sonographer, or other healthcare professional, the calculator is offered solely as a convenience for education and quick reference. You remain fully and solely responsible for independently verifying the scoring against the original published guidelines, applying clinical judgment, and making all patient care decisions.
Contact Us About Errors
If you believe any information or calculator logic on this Site contains an error, we encourage you to contact us . We take accuracy seriously and will review and address reported issues promptly.
Last updated: July 2026