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Table 1 The PICO model: Population, Intervention, Comparison and Outcome

From: Best practice guidelines for blunt cerebrovascular injury (BCVI)

Clinical question P I C O
What part of the trauma population should be screened for BCVI? In-hospital trauma population Clinical critera Various screening criteria Indications for radiological investigation
Which radiological method should be applied for screening? Selected trauma population Angiogram CTA versus DSA Vessel injury
How should BCVI be treated? Trauma patients with vessel injury on angiogram Medical or interventional treatment Medical versus interventional versus no treatment Stroke
How should patients with BCVI be handled over time? Trauma patients with vessel injury on angiogram Follow-up controls Life long versus period of treatment Stroke
  1. CTA CT angiography, DSA digital subtraction angiography