Matsumoto M, Nimura Y, Matsuo H, Nagata S, Mochizuki S, Sakakibara H, Abe H
J Clin Ultrasound. 1975 Mar;3(1):29-37. doi: 10.1002/jcu.1870030107.
The interatrial septum was studied with B-mode echocardiography to determine whether there were specific ultrasonic features characteristic of such congenital heart diseases as atrial septal defect and endocardial cushion defect. In transverse tomograms in the third and fourth intercostal space the interatrial septum is detected almost parallel to the anterior chest wall. The septum continues leftward to the echo of the anterior mitral leaflet. When the interatrial septum extends beyond the left sternal border, it can also be recorded near the left sternal border in the sagittal tomogram. The interatrial septum can also be recorded by conventional echocardiography. The pattern is wavy and synchronous with the heart beat with an amplitude of about 10 mm. It is seen near the chest wall in patients with left atrial enlargement and far from the chest wall in patients with right atrial enlargement. The defect in the interatrial septum was visualized by B-mode and conventional echocardiogram in patients with ostium secundum atrial septal defect. The defects were no longer observed after surgery.
采用B型超声心动图研究房间隔，以确定诸如房间隔缺损和心内膜垫缺损等先天性心脏病是否具有特定的超声特征。在第三和第四肋间间隙的横向断层图像中，房间隔几乎与前胸壁平行被检测到。该间隔向左延续至二尖瓣前叶的回声处。当房间隔延伸至左胸骨缘以外时，在矢状断层图像中也可在左胸骨缘附近记录到。房间隔也可通过传统超声心动图记录。其形态呈波浪状，与心跳同步，幅度约为10毫米。在左心房扩大的患者中，它在胸壁附近可见；而在右心房扩大的患者中，它离胸壁较远。继发孔型房间隔缺损患者的房间隔缺损通过B型和传统超声心动图均可显示。手术后缺损不再被观察到。
