Canadian CT Head Rule (minor head injury, adults)
Based on Stiell IG et al. (2001).
Pogosh offers this calculator when a case matches head injury, concussion, intracranial hemorrhage. It runs only when you press Calculate.
Decision support for clinicians — review before acting.
References
- Stiell IG, Wells GA, Vandemheen K, et al. The Canadian CT Head Rule for patients with minor head injury. Lancet. 2001;357:1391-1396. PMID 11356436. PubMed 11356436
Implementation notes
Thresholds: the abstract says "vomiting >2 episodes", "age >65 years" and "amnesia before impact >30 min"; later studies quoting the rule (Smits-type US comparison, PMC5637409; BMC Geriatr 2022, PMC9306092) use ≥ 2, ≥ 65 and ≥ 30. The inclusive (≥) form is used here because it can only flag more patients. A reviewer should add these from the Lancet paper.
Related calculators
Pogosh CDS reads a clinical note and offers the calculators that fit the case. Try it on your own note, browse all calculators, or call them from your software through the API.