MRA vs CTA for evaluating pulmonary embolism: Does the chosen modality impact downstream imaging utilization?

Example of spectral, or dual-energy CT, confirming a pulmonary embolism (PE). Image courtesy of Philips Healthcare

Example of spectral, or dual-energy CT, confirming a pulmonary embolism (PE). Image courtesy of Philips Healthcare

MR angiography (MRA) is a relatively new alternative to CT angiography (CTA) for the evaluation of suspected pulmonary embolism (PE) and it even has one major advantage over CTA: it does not expose patients to ionizing radiation.