[Radioisotopic studies and pulmonary thromboembolic diseases]

Perfusion and ventilation-perfusion lung scans are widely used as pivotal tests in the diagnostic work-up of patients with clinically suspected pulmonary embolism. Lung scan is a safe and reliable non invasive method to evaluate pulmonary blood flow restoration after an acute pulmonary embolism. The follow-up lung scan performed at completion of anticoagulant therapy serves as a new baseline for the diagnosis of recurrent pulmonary embolism.