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目的应用三维超声心动图(3-DE)初步评价房间隔缺损(ASD)面积变化率的临床意义。方法应用三维超声心动图测量ASD最大面积和最小面积,并由此计算出面积变化率;同时应用三维超声进行左右心室容积及心功能测量,观察各指标间有无关系。结果三维超声心动图能精确进行ASD面积测量,ASD面积变化率与RVEDV和RVEF分别呈中度正相关和中度负相关,ASD最大面积与最小面积存在高度相关性。结论面积变化率的测量有助于评估ASD患者右心室功能,并可全面掌握ASD大小,有利于临床医生进行ASD封堵或手术。
Objective To evaluate the clinical value of three-dimensional echocardiography (3-DE) in assessing the rate of change of atrial septal defect (ASD) area. Methods Three-dimensional echocardiography was used to measure the maximum area and the minimum area of ASD, and the area change rate was calculated. Meanwhile, the left and right ventricular volume and cardiac function were measured by three-dimensional echocardiography, and the relationship between them was observed. Results Three-dimensional echocardiography could accurately measure ASD area. There was a moderate positive correlation and a moderate negative correlation between ASD area change rate and RVEDV and RVEF. There was a high correlation between maximum area and minimum area of ASD. Conclusion The measurement of area change rate can help evaluate the right ventricular function in patients with ASD, and can fully understand the size of ASD, which is beneficial for clinicians to perform ASD occlusion or surgery.