[The Thyroid Imaging Reporting and Data System (TIRADS) for ultrasound of the thyroid]

J Radiol. 2011 Jul-Aug;92(7-8):701-13. doi: 10.1016/j.jradio.2011.03.022. Epub 2011 Jul 13.
[Article in French]


Purpose: To develop a standardized system for analyzing and reporting thyroid ultrasound, or Thyroid Imaging Reporting and Data System (TIRADS), in order to improve the management of patients with thyroid nodules.

Materials and methods: An atlas of imaging features, a standardized vocabulary, a report template and TIRADS categories 0 to 6 were defined, based on the BI-RADS system used for mammography. The diagnostic efficacy of the system was tested by a retrospective review of 500 nodules (159 cancers and 341 benign nodules) and comparing US imaging features to histological findings.

Results: Five signs allow accurate detection of 90% of thyroid cancers. The score of a nodule can be easily defined by using an organigram. Sensitivity, specificity and odds-ratio of the score were respectively 95%, 68% and 40.

Conclusion: TIRADS is a quality assurance tool for thyroid ultrasound. It contains an image atlas, a standardized report and categories to evaluate thyroid nodules to easily assess the risk of individual nodules being cancers and facilitate patient management.

MeSH terms

  • Calcinosis / classification
  • Calcinosis / diagnostic imaging
  • Calcinosis / pathology
  • Diagnosis, Differential
  • France
  • Humans
  • Neovascularization, Pathologic / classification
  • Neovascularization, Pathologic / diagnostic imaging
  • Neovascularization, Pathologic / pathology
  • Radiology Information Systems / organization & administration*
  • Risk Assessment
  • Sensitivity and Specificity
  • Terminology as Topic
  • Thyroid Gland / blood supply
  • Thyroid Gland / diagnostic imaging
  • Thyroid Gland / pathology
  • Thyroid Neoplasms / blood supply
  • Thyroid Neoplasms / classification
  • Thyroid Neoplasms / diagnostic imaging*
  • Thyroid Neoplasms / pathology
  • Thyroid Nodule / blood supply
  • Thyroid Nodule / classification
  • Thyroid Nodule / diagnostic imaging*
  • Thyroid Nodule / pathology
  • Ultrasonography, Doppler, Color