A Multimodality Imaging Approach to Defining Risk in Patients With Acute Pulmonary Embolism.

Background: Morbidity and mortality for acute pulmonary embolism (PE) remain high. Therapies such as catheter-directed thrombolysis may improve outcomes, but these are generally reserved for higher-risk patients. Imaging may help guide the use of the newer therapies, but current guidelines focus more on clinical factors.