The clinical applications of 16-slice Spiral CT in pulmonary embolism

Objective: To evaluate the clinical applications of 16-slice spiral CT pulmonary angiography in the diagnosis of pulmonary embolism. Methods: 33 patients with pulmonary embolism were examined by 16-slice spiral CT pulmonary angiography. The post-processing methods included VR, MPR and MIP. Results: All the 33 cases could better show the position and extent of pulmonary embolism, as well as narrowing of pulmonary arteries. The direct presence of 25 cases acute pulmonary embolism was visualized as a 'total occlusion' or 'double canal' signs. However, 8 cases of chronic pulmonary embolism demonstrated partial or mural filling defect. Conclusion: 16-slice spiral CT pulmonary angiography can be used as a noninvasive and effective method in diagnosing pulmonary embolism, evaluating effect of thrombolysis and flowing-up as well. (authors)