TI‑RADS Calculator for Thyroid Nodules

Nodule Size (cm, maximum dimension)

Composition Select… Cystic or almost completely cystic Spongiform Mixed cystic and solid Solid or almost completely solid

Per ACR, cystic/spongiform = 0 points.

Echogenicity Select… Anechoic Hyperechoic or isoechoic Hypoechoic Very hypoechoic

Shape (transverse) Select… Wider-than-tall Taller-than-wide

Margin Select… Smooth Ill-defined Lobulated or irregular Extra-thyroidal extension

Echogenic Foci (select all that apply)

Large comet-tail artifacts Macrocalcifications Peripheral (rim) calcifications Punctate echogenic foci

This tool follows your original rule of summing foci points.