Fig. 1.

Comparisons of experienced and novice performance in: a ultrasound image acquisition; b ultrasound image interpretation. Scenarios: 1 right kidney, 2 large pericardial effusion, 3 fluid in Morison’s pouch, 4 moderate pleural effusion. Notes: Scenarios are ordered here according to expected difficulty, but were completed in a different order by participants. The y‑axes depict the full range of possible performance scores