Lesson 1.6 - ACR TI-RADS

Question 1

What is ACR TI-RADS

Answer 1

A reporting system for thyroid nodules on US

Standardized scoring system

Question 2

What are the 5 categories when scoring

Answer 2

Composition
Echogenicity
Shape
Margin
Echogenic foci

Question 3

For composition, what do you assign points for?

Answer 3

predominant solid component

Question 4

term to describe nodule composed mostly of small cystic spaces

Answer 4

spongiform

Question 5

hyperechoic foci that may or may not show.

posterior acoustic shadowing

Answer 5

microcalcifications

Question 6

punctate echogenic foci sono app

Answer 6

<1 mm with no posterior acoustic shadowing. may have small comet-tail artifacts

Question 7

what shape assigns points?

Answer 7

nodule taller than wide

Question 8

what defines taller than wide measurement?

Answer 8

Ratio of AP diameter to horizontal diameter >1

measured in transverse plane

Question 9

what do you do to calculate TI-RADS grade/

Answer 9

summation of points from each column

Question 10

explain how many points means what

Answer 10

0 benign
2 not suspicious
3 mildly suspicious
4-6 moderately suspicious
>7 highly suspicious

Question 11

biopsy recommended for which lesions?

Answer 11

TR3-TR5

Question 12

T/F

if there are multiple lesions, the largest should be sampled

Answer 12

FALSE

the two with the highest ACR TI-RADS grades should be sampled