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Calculator: Thyroid Imaging Reporting and Data System (TI-RADS) with guidance on FNA of thyroid nodules in adults


Calculator: Thyroid Imaging Reporting and Data System (TI-RADS) with guidance on FNA of thyroid nodules in adults

 
Composition

Spongiform, cystic, or almost completely cystic (0 points)

Mixed solid and cystic (1 point)

Solid or almost completely solid (2 points)
Echogenicity

Anechoic (0 points)

Hyperechoic or isoechoic (1 point)

Hypoechoic (2 points)

Very hypoechoic (3 points)
Shape

Wider than tall (0 points)

Taller than wide (3 points)
Margin

Smooth or ill-defined (0 points)

Lobulated or irregular (2 points)

Extrathyroidal extension (3 points)
Echogenic Foci

None or large comet-tail artifacts (0 points)

Macrocalcifications (1 point)

Peripheral (rim) calcifications (2 points)

Punctate echogenic foci (3 points)

 
Important: Inputs must be complete to perform calculation.

 
Total criteria point count:
 

 

TI-RADS interpretation

 
Points Category Designation Recommendation
0 to 1 TR1 Benign No FNA
2 TR2 Not suspicious No FNA
3 TR3 Mildly suspicious FNA if lesion ≥2.5 cm or follow if lesion ≥1.5 cm
4 to 6 TR4 Moderately suspicious FNA if lesion ≥1.5 cm or follow if lesion ≥1 cm
7 to 17 TR5 Highly suspicious FNA if lesion ≥1 cm or follow if lesion ≥0.5 cm

 
Notes
  • Ultrasonographic classification applies directly to the population investigated and only indirectly, and imperfectly, to a specific patient.
  • FNA: fine-needle aspiration.

 
Only digits 0 to 9 and a single decimal point (".") are acceptable as numeric inputs. Attempted input of other characters into a numeric field may lead to an incorrect result.

Information on this page may not appear correctly if printed.

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