摘要
Abstract
Objective:To evaluate the value of 128 slice CT pulmonary angiography (CTPA) in the assessment of acute pulmonary embolism(APE).Method:44 pulmonary embolism patients with CTPA examination were selected as the research objects.According to the Mastora scoring method of CT pulmonary arterial obstruction index they were divided into the mild,the moderate and the severe group.On transverse CT images, The maximum short axis diameters of right ventricular(RV)and left ventricular(LV),the diameters of main pulmonary artery(MPA),ascending aorta(AA),superior vena cava(SVC) and azygos vein(AV) were measured.The ratio of the right ventricular maximum short axis diameter(RVd) and left ventricular short axis diameter(LVd),the ratio of main pulmonary artery diameter(MPAd) and ascending aortic diameter(AAd) were calculated.The situation of contrast agents regurgitation of azygos vein(AV),inferior vena cava(IVC), hepatic vein(HV) and coronary vein(CV) were observed.Result:With the increase of pulmonary arterial obstruction index,the RVd of CT was increased,the LVd was decreased and the ratio of RVd/LVd was increased. The SVC and AV ware expended.The situation of contrast agents regurgitation of AV,IVC,HV and CV was more obvious.The ratio of MPAd/AAd was increased.Conclusion:The 128 slice CTPA can help to judge the severity of acute pulmonary embolism and provide the necessary help for clinical choice of treatment,determination of prognosis and observation of efficacy.关键词
肺栓塞/肺动脉/体层摄影术/X线计算机/严重性Key words
Pulmonary embolism/Pulmonary artery/Tomography/X-ray computed/Severity
