Advanced Search
Discover new calcs: choose 1 function + 1 more filter
Examples:
Click here to discover
Pulmonary Embolism
calculators for
Diagnosis
After you diagnose a PE, discover
Pulmonary Embolism
calculators for
Prognosis

    Calc Function

  • Calcs that help predict probability of a diseaseDiagnosis
  • Subcategory of 'Diagnosis' designed to be very sensitiveRule Out
  • Disease is diagnosed: prognosticate to guide treatmentPrognosis
  • Numerical inputs and outputsFormula
  • Med treatment and moreTreatment
  • Suggested protocolsAlgorithm

Disease

Select...

Specialty

Select...

Chief Complaint

Select...

Organ System

Select...

Alberta Stroke Program Early CT Score (ASPECTS)

Determines MCA stroke severity using available CT data.

To compute the ASPECTS, 1 point is subtracted from 10 for any evidence of early ischemic change for each of the defined regions.
For a diagram of the defined regions of the ASPECT Score, see the About section.
Subcortical Structures
MCA Cortex

Advice

Using the traditional cutoff (<8 vs ≥8) as a rough estimate for predicting independence can inform decisions. Like the 1/3rd score, the ASPECTS points out that early CT changes in stroke may be a harbinger.

Management

We are unaware of validated management algorithms using the ASPECTS.

Critical Actions

The ASPECTS relies on subtle CT findings and thus requires an experienced radiologist. Its only validated use is as a binary (<8 vs ≥8) variable for general outcome prediction in those eligible for reperfusion therapy.