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TI-RADS

Quality assurance tool that standardizes thyroid imaging

License: CC BY-ND 4.0 DEED
ACR Thyroid Imaging Reporting & Data System (TI-RADS™)

Current Release

The TI-RADS™ whitepaper of the ACR® TI-RADS Committee is available on the web and for download from JACR®.

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Thyroid nodules are exceedingly common, leading to costly interventions for many lesions that ultimately prove benign. In response, ACR committees were formed to accomplish three goals:

  1. Develop management guidelines for nodules that are discovered incidentally on CT, MRI, PET or ultrasound.
  2. Produce a lexicon to describe all thyroid nodules on sonography.
  3. Develop a standardized TI-RADS risk-stratification system based on the lexicon to inform practitioners about which nodules warrant biopsy.

Further Reading:

Putting TI-RADS to Work

Reporting templates, worksheets and more for using ACR TI-RADS

  • Template

    TI-RADS Biopsy Reporting Template

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  • Template

    TI-RADS Diagnostic Ultrasound Reporting Template

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  • Worksheet

    TI-RADS Sonographers Worksheet

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  • Webinar Part 1

    This Is How We Do It

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  • Webinar Part 2

    Case-Based Review and Frequently Asked Questions

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  • Webinar Part 3

    Why Adopt ACR TI-RADS? Evidence Behind Performance

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  • FAQ

    TI-RADS Frequently Asked Questions

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Thyroid Ultrasound Using TI-RADSEducation Activity

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Allows the learner to further develop their interpretation proficiency of thyroid nodules by using ACR TI-RADS to reduce unnecessary biopsies.

This activity is divided into a pre-test comprised of seven cases, followed by 18 learning cases (with case feedback) and a post-test of seven cases.

The learner will assess each case for sonographic features including composition, echogenicity, margins, shape and echogenic foci, to determine the risk category.

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Learning Objectives

  1. Recognize the use of ACR TI-RADS for thyroid nodules on ultrasound to categorize risk of malignancy.
  2. Describe the difference between thyroid nodule signs under categories of composition, echogenicity, margins, shape and echogenic foci.
  3. Identify nodules that do not need further biopsy or follow-up ultrasound.

To receive credit for the activity participants must:

  1. Complete the post-test with a passing score of 80% or higher, a maximum of three attempts will be allowed.
  2. Complete the post-activity evaluation and claim credit commensurate with their participation in the activity.

The ACR Disclosure Policy: The American College of Radiology® (ACR) adheres to the policies and guidelines, including the Standards for Integrity and Independence in Accredited CE, set forth to providers by the Accreditation Council for Continuing Medical Education (ACCME), stating those activities where continuing education credits are awarded must be balanced, independent, objective and scientifically rigorous. All persons in a position to control the content of an accredited continuing education program provided by ACR are required to disclose all financial relationships with any ineligible company within the past 24 months. All financial relationships reported are identified as relevant and mitigated by ACR in accordance with the Standards for Integrity and Independence in Accredited CE in advance of delivery of the activity to learners. The content of this activity was vetted by ACR to assure objectivity and that the activity is free of commercial bias. All relevant financial relationships have been mitigated by ACR.

The following planners and managers have no relevant financial relationships to disclose: Jenny Hoang, MBBS; Franklin Tessler, MD; William Middleton, MD, FACR; Louise Davies, MD, MS; Cassie Vivian-Davis; Lauren Attridge; Valerie Kasdan and Alexis LaCount

The following faculty have no relevant financial relationships to disclose: Naykky Singh Ospina and Juan P. Brito, MD, MSc

Credit Designation Statement

The American College of Radiology designates this enduring material activity for a maximum of 3.0 AMA PRA Category 1 Credits™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.

Accreditation Statement

The American College of Radiology is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians.

CME Release: 02/09/2024
CME Expires: 02/09/2027

For information about the accreditation of this program, please contact the ACR.

Request Permission for TI-RADS

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Licensing RADS content

License Information

Reporting and Data Systems (RADS) by the American College of Radiology are licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License. Permissions beyond the scope of this license may be available by using our permission form. Contact us: rads@acr.org

Related Resources

  • Radiology Journal

    Reduction in Thyroid Nodule Biopsies and Improved Accuracy with American College of Radiology Thyroid Imaging Reporting and Data System

    Learn more

  • JACR

    Improved Quality of Thyroid Ultrasound Reports After Implementation of the ACR Thyroid Imaging Reporting and Data System Nodule Lexicon and Risk Stratification System

    Read now

  • AJR

    Comparison of Performance Characteristics of American College of Radiology TI-RADS, Korean Society of Thyroid Radiology TIRADS and American Thyroid Association Guidelines

    Get started