Overview

CT pulmonary angiography requires precise contrast timing and thin slice acquisition to detect central and peripheral emboli.

Acquisition Parameters

Use high flow contrast injection bolus tracking at the pulmonary trunk and thin collimation with inspiratory breath hold.

Clinical Considerations

Assess right ventricular strain and ancillary findings such as infarction and pleural effusion to guide management.

Contrast and Renal Safety

Screen renal function and use low osmolar contrast protocols and hydration strategies for at risk patients.