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ECR 2019 / C-2490
ACR-TIRADS and Eu-TIRADS, are they so different?
Congress: ECR 2019
Poster No.: C-2490
Type: Educational Exhibit
Keywords: Head and neck, Thyroid / Parathyroids, Ultrasound, Ultrasound-Colour Doppler, Structured reporting, Decision analysis, Diagnostic procedure, Endocrine disorders, Neoplasia, Pathology
Authors: F. Diaz, I. García Duitama, A. Radosevic, A. Solano, C. V. Martinez Stocker, M. Vilas Gonzalez, A. Agustí; Barcelona/ES


Thyroid nodules are quite common in general population, being found in up to 68% of normal population (depending the serie) [1]. Most of them are asymptomatic, showing benign appearance, and will never develop into a cancer. But few of them could develop a cancer in a future. Ultrasound (US) is widespread and extremely useful for imaging thyroid lesions, given the fact that some US features of thyroid nodules has been linked to increased risk of malignancy in varying percentages. Unfortunately, none of such features is enough sensible and specific to detect cancer alone, so we need a classification system able to classify those findings and stratify them into determined risk groups, in order to diagnose cancer and reduce unnecessary interventions for benign lesions.


In 2015 an american committee convened by the ACR presented a white paper for approaching the thyroid nodules, and the appropiate lexicon to be used for the report. The white paper was named ACR Thyroid Imaging, Reporting and Data System (ACR TI-RADS) [2]. In 2017, the white paper was revised and updated, published in may 2017 [1] and its being widespread used since then.


The European thyroid association (ETA) convened a task force to create a guideline and a risk stratification system, and also to establish a lexicon, a report template, and a practical image guide, which was named EU-TIRADS. The report was published in september 2017 [3].


There are other classification systems, namely BTA, ATA, AACE/ACE/AME and K-TIRADS, that can be useful but it's discussion if beyond the goals of the poster.


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