ForHosting KIT · Developer Utilities

ACR TI-RADS calculator

ACR TI-RADS, the American College of Radiology Thyroid Imaging Reporting and Data System, assigns integer points to a thyroid nodule from five ultrasound descriptors: composition, echogenicity, shape, margin, and echogenic foci.

● BetaFree · in your browser

Run — free How it works & API

Use it from WebAPIEmailTelegramApp soon

This calculator applies the published 2017 Tessler white-paper table, adds those points, and maps the total onto TR1 through TR5 with the matching risk label and the size-based FNA or follow thresholds that accompany each category. Every feature is required; a missing or unrecognised value fails with invalid_input instead of inventing a score. The same pure lookup powers the free browser widget and the prepaid API, so teaching files and automation never disagree. Successful API items cost $0.002. This is an educational reporting aid, not a diagnosis and not a substitute for a radiologist.

How to use it

Enter your values in the form above. The tool checks them before calculating and shows the result on the same page.

Check your inputs

Use the labels and units shown next to each field. If something is missing or outside the allowed range, the page points to the field to fix.

Use it again or automate it

Use the browser tool for individual checks and the API when you need the same capability in an automated workflow.

What you can do with it

Get an answer now

Enter one set of values and see the result without building a spreadsheet or script.

Compare scenarios

Change one value at a time and rerun the calculation to understand what affects the result.

Automate repeated work

Use the API when the same calculation needs to run inside your product or workflow.

FAQ

How is the ACR TI-RADS score calculated?

ACR TI-RADS adds published points from five ultrasound features: composition, echogenicity, shape, margin, and echogenic foci. When several foci types are present the points add. The integer total maps to TR1 through TR5.

What happens if a feature is missing?

The request fails with invalid_input naming the missing field. A TI-RADS total without all five descriptors is not a TI-RADS total, and that failure is not billed.

How do TR levels relate to FNA size thresholds?

TR1 and TR2 have no FNA recommendation. TR3 uses FNA at 2.5 cm and follow at 1.5 cm; TR4 uses 1.5 cm and 1.0 cm; TR5 uses 1.0 cm and 0.5 cm. Nodule diameter is not an input here.

Can I send more than one type of echogenic foci?

Yes. Send an array or a comma-separated string; points from macrocalcifications, peripheral calcifications, and punctate foci add, matching the 2017 white paper.

Is this a diagnosis, and what does the TI-RADS calculator cost?

No. It is an educational reporting aid, not a medical device. The browser tool runs free on your device. API calls use prepaid KIT balance at $0.002 per successful item; validation failures are not charged.

For developers — API access

Everything on this page is available programmatically. This section is for teams who want to wire it into their own systems; everyone else can just use the tool above.

API endpoint

POSThttps://api.kit.forhosting.com/health/tirads

Prefer to automate it? One authenticated POST creates the task; the result comes back by webhook or a signed link. The same capability also runs here on the web, by email and from Telegram — and soon from our app too.

Call it from your stack

curl -X POST https://api.kit.forhosting.com/health/tirads \
  -H "Authorization: Bearer $KIT_KEY" \
  -H "Content-Type: application/json" \
  -d '{"composition":"solid","echogenicity":"hypoechoic","shape":"wider_than_tall","margin":"smooth","echogenic_foci":"none_or_large_comet_tail"}'

const res = await fetch("https://api.kit.forhosting.com/health/tirads", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.KIT_KEY}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    "composition": "solid",
    "echogenicity": "hypoechoic",
    "shape": "wider_than_tall",
    "margin": "smooth",
    "echogenic_foci": "none_or_large_comet_tail"
  })
});
const { task_id } = await res.json();

import os, requests

res = requests.post(
    "https://api.kit.forhosting.com/health/tirads",
    headers={"Authorization": f"Bearer {os.environ['KIT_KEY']}"},
    json={
    "composition": "solid",
    "echogenicity": "hypoechoic",
    "shape": "wider_than_tall",
    "margin": "smooth",
    "echogenic_foci": "none_or_large_comet_tail"
},
)
task_id = res.json()["task_id"]

<?php
$res = file_get_contents("https://api.kit.forhosting.com/health/tirads", false, stream_context_create([
  "http" => [
    "method"  => "POST",
    "header"  => "Authorization: Bearer " . getenv("KIT_KEY") . "\r\nContent-Type: application/json",
    "content" => '{"composition":"solid","echogenicity":"hypoechoic","shape":"wider_than_tall","margin":"smooth","echogenic_foci":"none_or_large_comet_tail"}',
  ],
]));
$task = json_decode($res, true);

body := bytes.NewBufferString(`{"composition":"solid","echogenicity":"hypoechoic","shape":"wider_than_tall","margin":"smooth","echogenic_foci":"none_or_large_comet_tail"}`)
req, _ := http.NewRequest("POST", "https://api.kit.forhosting.com/health/tirads", body)
req.Header.Set("Authorization", "Bearer "+os.Getenv("KIT_KEY"))
req.Header.Set("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)

Example request

{
  "composition": "solid",
  "echogenicity": "hypoechoic",
  "shape": "wider_than_tall",
  "margin": "smooth",
  "echogenic_foci": "none_or_large_comet_tail"
}

Example response

{
  "task_id": "tsk_a1b2c3d4e5f6a1b2c3d4e5f6",
  "type": "health.tirads",
  "status": "queued",
  "_links": {
    "result": "/tasks/tsk_…/result"
  }
}

The API is asynchronous: the call returns a task_id immediately and the result arrives by webhook. Polling is capped at 1 req/s per task.

Pricing

Per request$0.002

Published price — no tokens, no invented credits. A failed task is never charged.

Errors

HTTP	Code	Meaning
`401`	`unauthorized`	Missing or invalid API key.
`402`	`insufficient_balance`	Your balance doesn't cover the task price.
`404`	`unknown_type`	That task type doesn't exist.
`429`	`rate_limited`	Too many requests. Use the webhook instead of polling.

Read the full KIT documentation →