The imaging diagnosis of pulmonary embolism

Pulmonary embolism has high incidence and mortality if treated improperly, but it was mistakenly diagnosed easily. So rapid and right diagnosis is crucial in successful treatment and gaining good prognosis. X-ray film is the necessary screening examination and UCG is useful in exclusion of heart disease. Radionuclide pulmonary perfusion and ventilation imaging is a traditional routine examination with high diagnostic accuracy. Spiral CT and MRI are excellent methods in diagnosis, treatment-directing and treatment effect-evaluating. However, the pulmonary angiography should be used if the diagnosis can not be confirmed with above mentioned noninvasive examinations.