TI-RADS · Tireoide

TI-RADS ACR Thyroid Imaging Reporting and Data System

vigente

Point based ultrasound risk stratification of thyroid nodules across five feature categories, mapping a total score to a TR level and to biopsy or follow up by size.

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Escala de categorias

TR1 TR2 TR3 TR4 TR5

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Procedência e vigência

Órgão emissor: American College of Radiology
Versão: 2017
Ano: 2017
Família: léxico
Tipo de lógica: score
Modalidade: US
Fonte primária: ACR Thyroid Imaging, Reporting and Data System (TI-RADS): White Paper of the ACR TI-RADS Committee · doi:10.1016/j.jacr.2017.01.046
Última verificação: 2026-06-22
Última checagem: 2026-06-22

Lógica de decisão

Forma estruturada (score). Uma futura calculadora a lê; as categorias abaixo são a superfície legível.

Per-feature points, the score to TR mapping, and size thresholds for FNA or follow up pending sourcing.

Mostrar a lógica estruturada (JSON)

{
  "feature_groups": [
    "composition",
    "echogenicity",
    "shape",
    "margin",
    "echogenic_foci"
  ],
  "points": null,
  "score_map": null,
  "size_thresholds": null
}

Categorias num relance

Cat.	Significado	Conduta	Risco	Fonte
TR1	Benign Total of 0 points across the five ACR TI-RADS feature categories (composition, echogenicity, shape, margin, echogenic foci).	No FNA and no follow-up recommended at any size.	Benign category; partial NMD analysis cited in the paper reports cancer risk of no more than 2% for TR1 and TR2 nodules combined.	okfonte ACR TI-RADS points table / risk-stratification chart (0 Points = TR1, Benign; "No FNA" row); discussion section ("cancer risk levels of no more than 2% for TR1 and TR2 nodules")
TR2	Not suspicious Total of 2 points.	No FNA and no follow-up recommended at any size.	Not Suspicious category; partial NMD analysis cited in the paper reports cancer risk of no more than 2% for TR1 and TR2 nodules combined.	okfonte ACR TI-RADS points table / chart (2 Points = TR2, Not Suspicious; "No FNA" row); discussion section ("no more than 2% for TR1 and TR2 nodules")
TR3	Mildly suspicious Total of 3 points.	FNA if the nodule is 2.5 cm or larger; follow-up ultrasound if 1.5 cm or larger.	Mildly Suspicious category; partial NMD analysis cited in the paper reports cancer risk of approximately 5% for TR3 nodules.	okfonte ACR TI-RADS points table / chart (3 Points = TR3, Mildly Suspicious; "FNA if >= 2.5 cm / Follow if >= 1.5 cm"); discussion section ("5% for TR3 nodules")
TR4	Moderately suspicious Total of 4 to 6 points.	FNA if the nodule is 1.5 cm or larger; follow-up ultrasound if 1 cm or larger.	Moderately Suspicious category; partial NMD analysis cited in the paper reports cancer risk of approximately 5% to 20% for TR4 nodules.	okfonte ACR TI-RADS points table / chart (4 to 6 Points = TR4, Moderately Suspicious; "FNA if >= 1.5 cm / Follow if >= 1 cm"); discussion section ("5% to 20% for TR4 nodules")
TR5	Highly suspicious Total of 7 points or more.	FNA if the nodule is 1 cm or larger; follow-up ultrasound if 0.5 cm or larger. (Nodules under 5 mm generally need no follow-up; biopsy of 5-9 mm TR5 nodules is optional, per discussion of papillary microcarcinomas.)	Highly Suspicious category; partial NMD analysis cited in the paper reports cancer risk of at least 20% for TR5 nodules.	okfonte ACR TI-RADS points table / chart (7 Points or More = TR5, Highly Suspicious; "FNA if >= 1 cm / Follow if >= 0.5 cm*" with footnote on 5-9 mm TR5 nodules); discussion section ("at least 20% for TR5 nodules")

Referências cruzadas

fronteira compartilhadaBI-RADS. Breast Imaging Reporting and Data System, 5th editionShares the ACR Reporting and Data System framework that BI-RADS established.

fronteira compartilhadaEU-TIRADS. European Thyroid Imaging Reporting and Data SystemEuropean alternative to ACR TI-RADS for thyroid nodule risk stratification, with different thresholds.

Histórico de versões

Data	Evento	Detalhe	Situação
2017-05-01	published	ACR TI-RADS white paper published in JACR. evidência	confirmado

Quickstart da APIGET /api/v1/systems/ti-rads-2017aberto

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