Value of multi-slice spiral CT pulmonary angiography in judging the severity of pulmonary embolism and evaluating the right ventricular function in patients with pulmonary embolism

LIN Kai

Abstract：Objective To explore the value of multi-slice spiral CT pulmonary angiography in judging the severity of pulmona-ry embolism in patients with pulmonary embolism and to analyze its value in evaluating the right ventricular function. Methods 127 patients with pulmary emholism,who were admitted to our hospital and 51 healty subjects were ineluded in this work. The right ventricular short axis diameter(RVMSA),left ventricular short axis diameter(LVMSA),right ventricular and left ventricu-lar short axis diameter(RV/LV),pulmonary artery diameter,vena cav diameter were compared in four gorups. The CT occlusion index,the number of bronchial artery dilatation, the interventricular septum straightness, or the number of left protrusion were compared between the three groups. Results There were significant differences in RV, LV, RV/LV, pulmonary artery diame-ter,superior vena cava diameter between the four groups ( P <0.05). The three group of CT obstruction index, the number of cases of bronchial artery dilatation,left ventricular septal straight or the number of cases,the indicators were significantly different in patients with severe CT obstruction index,the highest number of cases of bronchial artery dilatation and left ventricular septal straight or the number of cases were significantly more than the other two groups( P <0.05). Conclusion Pulmonary embolism in patients with RV,LV,RV/LV,pulmonary artery diameter,superior vena cava diameter can be used to determine the severity of pulmonary embolism. CT pulmonary artery angiography for patients with pulmonary embolism severity evaluation of right ventric-ular function has important application value.