The Cardiothoracic Ratio on Trial.

We explore a case of missed myocarditis which resulted in cardiac arrest and brain injury in an 18-month-old infant. The radiologist was deemed negligent for failing to suggest the possibility of myocardial dysfunction on a pediatric chest radiograph with an elevated cardiothoracic ratio. We analyze why the imperfections of the chest radiograph place radiologists at medico-legal risk. We explore solutions which may mitigate that risk.