Value of echocardiography combined with computed tomography pulmonary angiography in evaluating cardiac dysfunction in patients with pulmonary hypertension
Objective Explore the value of echocardiography combined with computed tomography pulmonary angiography(CTPA)in evaluating cardiac dysfunction in patients with pulmonary hypertension(PAH).Methods One hundred and forty-two PAH patients who were diagnosed and treated at Ningbo NO.6 Hospital from June 2018 to August 2020 were selected.The patients were divided into an observation group(37 cases)with cardiac dysfunction and a control group(105 cases)without cardiac dysfunction.Echocardiography and CTPA parameters were compared between the two groups.Receiver operating characteristic curve(ROC)was used to analyze the diagnostic efficacy of echocardiography combined with CTPA in evaluating cardiac dysfunction in patients with PAH.Results Right ventricular systolic pressure(RVSP)was significantly higher,right ventricular ejection fraction(RVEF)and tricuspid annular plane systolic excursion(TAPSE)were significantly lower in the observation group than in the control group(all P<0.05).Pulmonary artery diameter and right ventricular transverse diameter were significantly higher in the observation group than in the control group(all P<0.05).ROC showed that the area under the curve(AUC)of a combination of RVEF,RVSP and TAPSE was significantly higher than that of each parameter,pulmonary artery diameter combined with right ventricular transverse diameter was significantly higher than each one,in predicting cardiac dysfunction(all P<0.05).The AUC of echocardiography combined with CTPA was 0.913,higher than that of echocardiography or CTPA alone.Conclusion A combination of echocardiography and CTPA may improve prediction of cardiac dysfunction in PAH patients.