Khan 2020 modified Brain Injury Guidelines (mBIG), not original Joseph 2014 BIG
Khan 2020 modified Brain Injury Guidelines (mBIG), not original Joseph 2014 BIG. First-match worst-wins tier 3 then 2 then 1 from caller-assigned GCS, focal or pupillary abnormality, anticoagulant or antiplatelet excluding aspirin alone, EtOH >80 mg/dL, skull fracture, SDH mm, IPH mm and multiple IPH, SAH pattern and mm, any EDH, and IVH. Any EDH is mBIG 3. magent does not read CT. Adults with mild TBI and traumatic ICH. Not a diagnosis or neurosurgical plan. Not a medical device.
Asked 1.4x its listed price for its own exampleour last check, 2026-09-28
1 of 1checks answered this week
351 msmedian answer time
$0.005listed price per call
$0.007price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.magentlab.com/api/calc/mbig
| Category | Everything else |
|---|---|
| Provider host | api.magentlab.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.007 | 351 ms |
Example input (from the provider)
{
"body": {
"items": [
{
"ac_ap_excluding_aspirin": false,
"edh": false,
"etoh_gt_80": false,
"focal_neuro_or_pupillary_abnormality": false,
"gcs": 15,
"iph_mm": 0,
"ivh": false,
"multiple_iph": false,
"sah_mm": 0,
"sah_pattern": "none_or_trace",
"sdh_mm": 3,
"skull_fracture": "none"
},
{
"ac_ap_excluding_aspirin": false,
"edh": false,
"etoh_gt_80": false,
"focal_neuro_or_pupillary_abnormality": false,
"gcs": 15,
"iph_mm": 0,
"ivh": false,
"multiple_iph": false,
"sah_mm": 0,
"sah_pattern": "none_or_trace",
"sdh_mm": 3,
"skull_fracture": "none"
}
]
},
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"properties": {
"ac_ap_excluding_aspirin": {
"description": "Anticoagulant or antiplatelet therapy excluding aspirin alone, as assigned by the caller. true or false. true is mBIG 3. Aspirin monotherapy is false. magent does not read a medication list.",
"type": "boolean"
},
"edh": {
"description": "Any epidural hematoma as assigned by the caller. true or false. Any EDH is mBIG 3 (Khan 2020 safety modification versus original BIG size bands). magent does not read CT.",
"type": "boolean"
},
"etoh_gt_80": {
"description": "Blood alcohol concentration >80 mg/dL as assigned by the caller (Khan 2020 intoxication definition, US legal driving limit). true or false. true excludes mBIG 1 (mBIG 2 unless a mBIG 3 feature is also met). magent does not assay ethanol.",
"type": "boolean"
},
"focal_neuro_or_pupillary_abnormality": {
"description": "Focal neurologic deficit or abnormal pupillary findings as assigned by the caller (Khan 2020 abnormal neurologic examination). true or false. true is mBIG 3. magent does not examine the patient.",
"type": "boolean"
},
"gcs": {
"description": "Caller-assigned Glasgow Coma Scale total, integer 3-15. Khan 2020 methods: GCS of 12 or less is an abnormal neurologic examination and is mBIG 3. magent does not compute eye, verbal, or motor GCS.",
"type": "integer"
},
"iph_mm": {
"description": "Largest intraparenchymal hemorrhage size in millimetres as assigned by the caller (0-40). mBIG 1 if <4, mBIG 2 if >=4 and <8, mBIG 3 if >=8. Use 0 when no IPH. magent does not measure IPH or read CT.",
"type": "number"
},
"ivh": {
"description": "Intraventricular hemorrhage as assigned by the caller. true or false. true is mBIG 3. magent does not read CT.",
"type": "boolean"
},
"multiple_iph": {
"description": "Multiple intraparenchymal hemorrhages as assigned by the caller. true or false. true is mBIG 3. magent does not count lesions on CT.",
"type": "boolean"
},
"sah_mm": {
"description": "SAH thickness in millimetres as assigned by the caller (0-20). mBIG 1 if <1, mBIG 2 if 1-3, mBIG 3 if >3. Use 0 when none. Combined with sah_pattern; either scattered pattern or >3 mm is mBIG 3. magent does not measure SAH.",
"type": "number"
},
"sah_pattern": {
"description": "Traumatic SAH pattern as assigned by the caller from Khan 2020 sulci/hemisphere definitions that replace original BIG trace/localized/scattered: none_or_trace (<=3 sulci and <1 mm), localized (one hemisphere, >3 sulci, 1-3 mm), or scattered (bi-hemispheric or >3 mm). magent does not read CT.",
"enum": [
"none_or_trace",
"localized",
"scattered"
],
"type": "string"
},
"sdh_mm": {
"description": "Largest subdural hematoma thickness in millimetres as assigned by the caller (0-40). mBIG 1 if <4, mBIG 2 if >=4 and <8, mBIG 3 if >=8. magent does not measure SDH or read CT.",
"type": "number"
},
"skull_fracture": {
"description": "Skull fracture as assigned by the caller from CT: none (mBIG 1 row), nondisplaced (mBIG 2), or displaced (mBIG 3). magent does not read CT.",
"enum": [
"none",
"nondisplaced",
"displaced"
],
"type": "string"
}
},
"required": [
"gcs",
"focal_neuro_or_pupillary_abnormality",
"ac_ap_excluding_aspirin",
"etoh_gt_80",
"skull_fracture",
"sdh_mm",
"iph_mm",
"multiple_iph",
"sah_pattern",
"sah_mm",
"edh",
"ivh"
],
"type": "object"
},
"maxItems": 25,
"minItems": 1,
"type": "array"
}
},
"required": [
"items"
],
"type": "object"
},
"headers": {
"additionalProperties": {
"type": "string"
},
"type": "object"
},
"method": {
"const": "POST",
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}