sICH score

sICH

Sum the four Cucchiara 2008 sICH flags and return the 0-4 total plus that paper's any-ICH percents (2.6/9.7/15.1/37.9% for scores 0/1/2/>=3).

LIVE $0.005 USDC GET /api/calc/sich

Markdown: /docs/sich.md · Canonical: https://magentlab.com/docs/sich

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Sum the four Cucchiara 2008 sICH flags and return the 0-4 total plus that paper's any-ICH percents (2.6/9.7/15.1/37.9% for scores 0/1/2/>=3).

When to use

When an agent has caller-assigned age >60, NIHSS >10, glucose >150 mg/dL, and platelets <150,000/mm3 flags and needs the published sICH total and any-ICH percents, without inventing NIHSS, lab values, or later unofficial hemorrhage percents.

When not to use

Not a medical device.
Not a tPA order, withhold, or thrombolysis decision.
Not a hemorrhage diagnosis.
magent does not assay glucose or platelets or compute NIHSS. The caller assigns the four Cucchiara 2008 flags (age >60 years, baseline NIHSS >10, baseline glucose >150 mg/dL / 8.325 mmol/L, baseline platelets <150,000/mm3).
Any-ICH percents are Cucchiara 2008: 2.6% (0), 9.7% (1), 15.1% (2), 37.9% (>=3). Scores 3 and 4 both return 37.9. magent does not invent later unofficial hemorrhage percents.

Formula

sICH = age_gt_60 + nihss_gt_10 + glucose_gt_150 + platelets_lt_150k; each 1; Cucchiara 2008; max 4; any ICH 2.6/9.7/15.1/37.9% for scores 0/1/2/>=3; caller-assigned flags; magent does not assay glucose or platelets or compute NIHSS

Citation

Title: A risk score to predict intracranial hemorrhage after recombinant tissue plasminogen activator for acute ischemic stroke
Authors: Cucchiara B, Tanne D, Levine SR, Demchuk AM, Kasner SE
Source: J Stroke Cerebrovasc Dis. 2008;17(6):331-333
DOI: 10.1016/j.jstrokecerebrovasdis.2008.03.012

Worked example

All flags false

Given: age_gt_60=falseglucose_gt_150=falsenihss_gt_10=falseplatelets_lt_150k=false

age_gt_60, nihss_gt_10, glucose_gt_150, and platelets_lt_150k are false
score = 0 (max 4); any ICH 2.6%

All flags true

Given: age_gt_60=trueglucose_gt_150=truenihss_gt_10=trueplatelets_lt_150k=true

All four Cucchiara 2008 flags true, 1 point each
score = 4 (max 4); any ICH 37.9% (published >=3 bucket)

Also searched as

sICH score
Cucchiara score
Cucchiara 2008 ICH
post-tPA ICH score
Multicenter Stroke Survey ICH
rtPA hemorrhage risk score
Cucchiara hemorrhage score
symptomatic ICH Cucchiara

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/sich?age_gt_60=false&nihss_gt_10=false&glucose_gt_150=false&platelets_lt_150k=false

Full URL: https://api.magentlab.com/api/calc/sich?age_gt_60=false&nihss_gt_10=false&glucose_gt_150=false&platelets_lt_150k=false

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/sich?age_gt_60=false&nihss_gt_10=false&glucose_gt_150=false&platelets_lt_150k=false"

Parameters

Name	Type	Required	Description
`age_gt_60`	boolean	required	Age >60 years as assigned by the caller (Cucchiara 2008). true or false. magent does not assign age from a numeric value.
`nihss_gt_10`	boolean	required	Baseline NIHSS >10 as assigned by the caller (Cucchiara 2008). true or false. magent does not compute NIHSS or examine the patient.
`glucose_gt_150`	boolean	required	Baseline glucose >150 mg/dL (8.325 mmol/L) as assigned by the caller (Cucchiara 2008). true or false. magent does not assay glucose or convert units.
`platelets_lt_150k`	boolean	required	Baseline platelet count <150,000/mm3 as assigned by the caller (Cucchiara 2008). true or false. magent does not assay platelets.

Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

POST /api/calc/sich Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 PREVIEW

1 to 25 items. Each item uses the same keys as the GET query parameters.
POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request (fixture)

{
  "items": [
    {
      "age_gt_60": "false",
      "glucose_gt_150": "false",
      "nihss_gt_10": "false",
      "platelets_lt_150k": "false"
    },
    {
      "age_gt_60": "false",
      "glucose_gt_150": "false",
      "nihss_gt_10": "false",
      "platelets_lt_150k": "false"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/sich",
  "items": [
    {
      "components": [
        {
          "factor": "age_gt_60",
          "points": 0,
          "present": false
        },
        {
          "factor": "nihss_gt_10",
          "points": 0,
          "present": false
        },
        {
          "factor": "glucose_gt_150",
          "points": 0,
          "present": false
        },
        {
          "factor": "platelets_lt_150k",
          "points": 0,
          "present": false
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Cucchiara B, Tanne D, Levine SR, Demchuk AM, Kasner SE",
        "doi": "10.1016/j.jstrokecerebrovasdis.2008.03.012",
        "id": "cucchiara-2008",
        "pmid": "18984422",
        "source": "J Stroke Cerebrovasc Dis. 2008;17(6):331-333",
        "title": "A risk score to predict intracranial hemorrhage after recombinant tissue plasminogen activator for acute ischemic stroke"
      },
      "formula": "sich",
      "formula_expression": "sICH = age_gt_60 + nihss_gt_10 + glucose_gt_150 + platelets_lt_150k; each 1; Cucchiara 2008; max 4; any ICH 2.6/9.7/15.1/37.9% for scores 0/1/2/>=3; caller-assigned flags; magent does not assay glucose or platelets or compute NIHSS",
      "max_score": 4,
      "score": 0,
      "any_ich_percent": 2.6,
      "age_gt_60": false,
      "glucose_gt_150": false,
      "nihss_gt_10": false,
      "platelets_lt_150k": false
    },
    {
      "components": [
        {
          "factor": "age_gt_60",
          "points": 0,
          "present": false
        },
        {
          "factor": "nihss_gt_10",
          "points": 0,
          "present": false
        },
        {
          "factor": "glucose_gt_150",
          "points": 0,
          "present": false
        },
        {
          "factor": "platelets_lt_150k",
          "points": 0,
          "present": false
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Cucchiara B, Tanne D, Levine SR, Demchuk AM, Kasner SE",
        "doi": "10.1016/j.jstrokecerebrovasdis.2008.03.012",
        "id": "cucchiara-2008",
        "pmid": "18984422",
        "source": "J Stroke Cerebrovasc Dis. 2008;17(6):331-333",
        "title": "A risk score to predict intracranial hemorrhage after recombinant tissue plasminogen activator for acute ischemic stroke"
      },
      "formula": "sich",
      "formula_expression": "sICH = age_gt_60 + nihss_gt_10 + glucose_gt_150 + platelets_lt_150k; each 1; Cucchiara 2008; max 4; any ICH 2.6/9.7/15.1/37.9% for scores 0/1/2/>=3; caller-assigned flags; magent does not assay glucose or platelets or compute NIHSS",
      "max_score": 4,
      "score": 0,
      "any_ich_percent": 2.6,
      "age_gt_60": false,
      "glucose_gt_150": false,
      "nihss_gt_10": false,
      "platelets_lt_150k": false
    }
  ]
}

Response

Field	Type	Description
`formula`	string	sich
`formula_expression`	string	Exact expression used
`score`	integer	sICH points 0-4
`max_score`	integer	Always 4
`any_ich_percent`	number	Cucchiara 2008 any-ICH percent: 2.6 (0), 9.7 (1), 15.1 (2), 37.9 (>=3). Scores 3 and 4 both 37.9.
`age_gt_60`	boolean	Whether age >60 years was assigned
`nihss_gt_10`	boolean	Whether baseline NIHSS >10 was assigned
`glucose_gt_150`	boolean	Whether baseline glucose >150 mg/dL was assigned
`platelets_lt_150k`	boolean	Whether baseline platelets <150,000/mm3 were assigned
`components`	array	Per-factor Cucchiara 2008 points
`citation`	object	Cucchiara 2008 J Stroke Cerebrovasc Dis citation
`disclaimer`	string	Not-a-device notice

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "components": [
    {
      "factor": "age_gt_60",
      "points": 0,
      "present": false
    },
    {
      "factor": "nihss_gt_10",
      "points": 0,
      "present": false
    },
    {
      "factor": "glucose_gt_150",
      "points": 0,
      "present": false
    },
    {
      "factor": "platelets_lt_150k",
      "points": 0,
      "present": false
    }
  ],
  "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
  "citation": {
    "authors": "Cucchiara B, Tanne D, Levine SR, Demchuk AM, Kasner SE",
    "doi": "10.1016/j.jstrokecerebrovasdis.2008.03.012",
    "id": "cucchiara-2008",
    "pmid": "18984422",
    "source": "J Stroke Cerebrovasc Dis. 2008;17(6):331-333",
    "title": "A risk score to predict intracranial hemorrhage after recombinant tissue plasminogen activator for acute ischemic stroke"
  },
  "formula": "sich",
  "formula_expression": "sICH = age_gt_60 + nihss_gt_10 + glucose_gt_150 + platelets_lt_150k; each 1; Cucchiara 2008; max 4; any ICH 2.6/9.7/15.1/37.9% for scores 0/1/2/>=3; caller-assigned flags; magent does not assay glucose or platelets or compute NIHSS",
  "max_score": 4,
  "score": 0,
  "any_ich_percent": 2.6,
  "age_gt_60": false,
  "glucose_gt_150": false,
  "nihss_gt_10": false,
  "platelets_lt_150k": false
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

HTTP	Code	When
400	`invalid_sich`	sICH score inputs must match Cucchiara 2008 age, NIHSS, glucose, and platelet flags from that paper. Returned before settlement; you are not charged.
400	`invalid_items`	POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400	`invalid_item_count`	items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400	`invalid_item`	each items entry must be a JSON object Returned before settlement; you are not charged.

Related tools

NIHSS — Sum Brott 1989 NIH stroke scale points from 15 caller-assigned examination integers, including pupillary response and plantar reflex. Weaker-limb motor arm and leg. Does not apply later total-score severity bands.
ICH Score — Compute the Hemphill 2001 ICH Score from caller-assigned GCS, age, infratentorial origin, ICH volume, and IVH.
HAT — Compute the Lou 2008 HAT (Hemorrhage After Thrombolysis) score for symptomatic intracranial hemorrhage after stroke thrombolysis from diabetes or baseline glucose >200 mg/dL, pretreatment NIHSS, and easily visible hypodensity on initial CT.

Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /docs/mcp.

Guarantees

HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
Execution is timeout-bounded and concurrency-capped.
Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.