Which TI-RADS — ACR or EU?

Most Brazilian services use ACR TI-RADS (point system). EU-TIRADS is the European alternative. Standardize one system per service to avoid report variability.

When to indicate FNA?

By ACR TI-RADS: TR3 ≥ 2.5 cm, TR4 ≥ 1.5 cm, TR5 ≥ 1.0 cm. Suspicious lymphadenopathy or relevant family/clinical history shifts the threshold.

How to measure thyroid volume?

Volume of each lobe: length × width × thickness × 0.479. Sum lobes. Approximate normal: 7–12 mL ♀ and 8–15 mL ♂. Diffuse hyperplasia > 18 mL.

Report template — Thyroid ultrasound

When to use

Thyroid US is the modality of choice for nodules detected clinically or as incidentalomas. It characterizes solid/cystic pattern, vascularity, margins, halo, microcalcifications, size and stratifies risk via TI-RADS — guiding FNA indication.

What to evaluate

Thyroid volume (each lobe: V = c × w × h × 0.479; normal: 7–12 mL ♀ / 8–15 mL ♂).
Per nodule: composition (solid/mixed/cystic), echogenicity, shape, margins, echogenic foci, 3-plane dimensions.
Location (third, lobe), Doppler vascularity, peripheral halo.
Cervical lymphadenopathy (levels II–VI): shape, hilum, intranodal microcalcifications.
TI-RADS category per nodule + FNA indication if applicable.

Interactive template

Fill the blanks0/14

ULTRASSONOGRAFIA DA TIREOIDE Lobos tireoideanos tópicos, de morfologia habitual e contornos regulares. Parênquima com ecotextura e ecogenicidade normais. Nódulo , de contornos regulares e bem definidos por halo fino hipoecogênico, microcalcificações, situado no terço do lobo , medindo cm x cm x cm. Biometria: Lobo direito: cm. Volume: cc. Lobo esquerdo: cm. Volume: cc. Istmo: cm. Volume: cc. Volume total da glândula: cc. Não há evidências de nódulos na topografia das paratireoides. Estruturas vasculares cervicais preservadas. Ausência de linfonodomegalias cervicais. CONCLUSÃO: Ultrassonografia da tireoide dentro dos padrões da normalidade.

Template in Brazilian Portuguese (clinical reporting language). Adapt to your service protocol. Not medical advice — the physician reviews, edits and signs.

How to use

Replace each [...] with the exam's measurement or descriptor.
Adapt the conclusion to your service protocol before signing.
Use the template as a starting point — not a replacement for physician review.
In Laudos.AI, dictate findings in natural speech and the AI structures text in this format for review.

Related classifications

TI-RADS — categories & FNA indication

Frequently asked

Which TI-RADS — ACR or EU?: Most Brazilian services use ACR TI-RADS (point system). EU-TIRADS is the European alternative. Standardize one system per service to avoid report variability.
When to indicate FNA?: By ACR TI-RADS: TR3 ≥ 2.5 cm, TR4 ≥ 1.5 cm, TR5 ≥ 1.0 cm. Suspicious lymphadenopathy or relevant family/clinical history shifts the threshold.
How to measure thyroid volume?: Volume of each lobe: length × width × thickness × 0.479. Sum lobes. Approximate normal: 7–12 mL ♀ and 8–15 mL ♂. Diffuse hyperplasia > 18 mL.

References

ACR TI-RADS Committee, 2017.
Tessler FN et al., J Am Coll Radiol 2017.