螺旋CT肺动脉造影诊断急性肺动脉栓塞的研究

The value of spiral CT pulmonary angiography in the diagnosis of pulmonary embolism

目的:探讨螺旋CT诊断急性肺动脉栓塞(PE)的方法与价值。材料与方法:回顾性分析249例临床怀疑急性PE的病人资料,探讨螺旋CT肺动脉造影(SCTPA)方法及PE表现特征。结果:测得主肺动脉干强化峰值时间约10.8s;经SCTPA共检出68例PE,发生栓塞的肺动脉705支,其中偏心型506支,占71.8%,中心型147支,占20.8%,附壁型33支,占4.7%,全堵型最少,为19支,占2.7%;181例未发现确切PE征象,但其中105例检出其它疾病。结论:SCTPA是诊断急性PE的重要方法,能较准确地诊断肺内其它病变,对于临床怀疑急性PE的就诊者,SCTPA应作为首选检查。

Objective： To of pulmonary embolism（PEevaluate the efficacy and technique of spiral CT in the diagnosis）. Materials and Methods： Two hundred and forty-nine consecutively registered patients with clinically suspected of PE were analyzed retrospectively. The technique of sprial computed tomography pulmonary angiography （SCTPA） and the appearance of PE were studied. Results： The peak time of enhancement in aorta is about 10.8s. There were 68 patients and 705 pulmonary arteries with embolism, including eccentric embolism in 506 pulmonary arteries（71.8%）, centric embolism in 147 pulmonary arteries （20.8%）, wall thickened in 19 pulmonary arteries （4.7%） and complete obstruction in 33 pulmonary arteries （2.7%）. The other 181 had no PE. But there were other pulmonary lesions found in 105 patients. Conclusion： SCTPA is important in diagnosing PE, and it can detect other pulmonary lesions simultaneously. In patients with clinical suspicion of PE, SCTPA is the primary imaging technique.