双源CT在评价肺栓塞中的价值

目的 探讨双源CT在诊断肺栓塞中的价值.方法 2008年5月-2010年12月纳入50例可疑肺栓塞患者,使用双源CT进行肺动脉血管增强扫描,对图像行三维重建,分析栓塞部位、栓子形态、肺内、心脏及胸腔改变等.结果 44例确殄肺栓塞,发现肺栓塞共260处,最常见于右肺下叶动脉28例(63.0%),其次于右肺动脉22例(50...

Value of Dual-soure CT in Diagnosing Pulmonary Artery Embolism

Objective To explore the value of dual-source CT in diagnosing pulmonary embolism.Methods From May 2008 to December 2010,50 patients who were suspected of pulmonary embolism were included,and pulmonary angiography was performed on these patients by dual-source CT.The obtained images were reconstructed with three dimensional technique to analyze the location and shape of the embolism,and lesions affecting the lung,heart and thoracic cavity.Results A total of 44 patients wiht pulmonary embolism with 260 affected branches of arteries were confirmed by CT angiography.The most common affecting artery was the right lower pulmonary artery（28/44,63.0%）,which was followed by the right pulmonary artery（22/44,50.0%） and the left lower pulmonary artery（19/44,43.2%）.Segmental and subsegmental pulmonary arteries were involved in 15 patients（15/44,34.1%）.Pulmonary artery embolism involves the right pulmonary arteries more frequently than the left pulmonary arteries（P0.05）.Acute pulmonary embolism was found in 39 cases（39/44,88.6%）,while chronic pulmonary embolism was found in 5（5/44,11.4%）.Conclusions Dual-source CT with fast scanning speed and high spatial resolution can demonstrate the exact site of the pulmonary embolism and evaluate the lesions of thoracic cavity,lung and heart.In clinical practice,dual-source CT could be the preferred choice in diagnosing pulmonary embolism.