Figure 1
Two chest X-ray scans with measurements. Panel A shows a chest X-ray with an orange line representing the widest area of the heart and a blue line representing the widest area of the thoracic cavity. Panel B shows another chest X-ray with similar measurements, where the orange line indicates the widest area of the heart and the blue line indicates the widest area of the thoracic cavity.Sample visualizations of CTR measurements, where an orange line represents a widest area of heart, a blue line represents a widest area of thoracic cavity, and CTR is a ratio between a length of the orange line and a length of the blue line (Color version of the figure is available online)