Pulmonary embolism (PE) is a pathology with still high mortality. Of the factors that influence natural evolution of PE, the most important is the degree of obstruction, hemodynamic status, the cardiopulmonar pre-existing status, length of thrombosis and spontaneous thrombolytic therapy of lungs vascular endothelium. The reason for classifying the patients on the basis of risk is to identify those who, although they present submassive PE could benefit from thrombolytic therapy. In our study, we examined whether changes in ECG, echocardiography and CT, objectivised through ECGScore and CTScore, could be useful in risk stratification in patients diagnosed with PE. Conclusion: There was no significant statistically association between ECGScore, CTScore and mortality at 30 days or 1 year. There is a certain association of these scores with immediate mortality (first 24 hours).