**4.3 Imaging in PE**

The diagnosis of PE may be made by a variety of imaging techniques, including chest X-ray, ventilation-perfusion scan, computed tomography (CT) of the chest vessels and pulmonary angiography.

On clinical suspicion of PE, the initial evaluation is made using chest X-ray, Electrocardiography (ECG) and ABG. Further evaluation is made by ventilation-perfusion scan, CT of the chest vessels (Gulsun Akpinar & Goodman, 2008).

Currently, CT venography combined with pulmonary CT angiography for the detection of PE is increasingly used to confirm the diagnosis of suspected PE and the results have been extremely promising (Krishan et al., 2011).
