TI-RADS Calculator

How to Use the TI-RADS Calculator?

Using the TI-RADS calculator is straightforward and requires ultrasound measurements of the following parameters:

• Composition
  • Cystic or completely cystic/Spongiform : 0 points
  • Mixed cystic and solid: 1 point
  • Solid or almost completely solid: 2 points
• Echogenicity
  • Anechoic: 0 points
  • Hyper- or isoechoic: 1 point
  • Hypoechoic: 2 points
  • Very hypoechoic: 3 points
• Shape(use the transverse plane)
  • Wider than tall: 0 points
  • Taller than wide: 3 points
• Echogenic foci
  • None/Large comet-tail artifact: 0 points
  • Macrocalcifications: 1 point
  • Peripheral/rim calcifications: 2 points
  • Punctate echogenic foci: 3 points
• 2 points - TI-RADS category 2
  • Not suspicious
  • No fine needle aspiration (FNA) required
• 3 points - TI-RADS category 3
  • Mildly suspicious
  • ≥1.5 cm follow up, ≥2.5 cm FNA - follow up: 1, 3 and 5 years
• 4-6 points - TI-RADS category 4
  • Moderately suspicious
  • ≥1.0 cm follow up, ≥1.5 cm FNA - follow up: 1, 2, 3 and 5 years
• ≥7 points - TI-RADS category 5
  • Highly suspicious
  • ≥0.5 cm follow up, ≥1.0 cm FNA - annual follow up for up to 5 years

⚕️ An example of the TIRADS assessment of a spongiform thyroid nodule:

• Composition (spongiform) - 0 point
• Echogenicity (anechoic) - 0 point
• Shape (wider than taller) - 0 point
• Margin (lobulated) - 1 point
• Echogenic foci (present: macrocalcification, peripheral calcification, puncate foci)- 6 points
  Total: 7 points, TI-RADS category 5, 35% risk of malignancy.

Steps:

• Enter the findings from the ultrasound for each parameter into the calculator.
• The calculator will compute the total score.
• Review the results, which include the total score, TI-RADS category, and risk of malignancy.

Healthy and Unhealthy Ranges

The TI-RADS categories classify the nodules into risk groups:

• TI-RADS Category 1: Benign (0% risk of malignancy)
• TI-RADS Category 2: Not suspicious (0.3% risk of malignancy)
• TI-RADS Category 3: Mildly suspicious (1.5% risk of malignancy)
• TI-RADS Category 4: Moderately suspicious (4.8% risk of malignancy)
• TI-RADS Category 5: Highly suspicious (35% risk of malignancy)

This categorization aids in determining appropriate follow-up and treatment plans based on malignancy risk.

How to use the ACR TIRADS calculator?

Our thyroid nodule calculator doesn't require much effort - choose the options that best describe the picture from the ultrasound device.

Your results will be shown underneath the calculator. You'll receive:

• Collected number of points (0-17)
• TIRADS category (TR1-5)
• Risk of malignancy for the given category
  • TR1: 0.3%
  • TR2: 1.5%
  • TR3: 4.8%
  • TR4: 9.1%
  • TR5: 35%
• ACT recommendations (fine needle aspiration + follow-up)

Why Use This Calculator?

• Accuracy: Provides a precise and standardized risk assessment.
• Efficiency: Simplifies decision-making for FNA or monitoring.
• Reliability: Based on established ACR TI-RADS guidelines.

The calculator is an essential tool for radiologists, endocrinologists, and clinicians, ensuring consistency and clarity in managing thyroid nodules.