Chang S, Roberts S, Chang J K, Kleinberg M, Rodriquez-Torres R
Jpn Heart J. 1979 May;20(3):289-99. doi: 10.1536/ihj.20.289.
Right ventricular wall motion was readily accessible for echocardiographic recording along the right sternal border in 27 pediatric patients (age: 24 hrs--12 yrs). Right ventricular epicardial and endocardial wall motion could be recorded only at the right sternal border in 10 of these patients, emphasizing the need for a new, alternative examination site. Calculated measurements of right ventricular wall thickness recorded from both right and left sternal borders (7 pts) were similar (range of diff.=0--0.6 mm; mean of diff.=0.26 mm). Autopsy confirmation of right ventricular wall thickness was obtained in 2 patients. Epicardial motion could not be identified at the left sternal border in 10 patients. In these patients, right ventricular wall thickness was estimated by measuring from the inner chest wall to the endocardium. These measurements were compared to right ventricular wall thickness obtained from the right sternal border. Wall thickness obtained from the left sternal border was significantly underestimated in the absence of a definite epicardial interface (range of diff.=0.2--2.6 mm; mean of diff.=1.3 mm).
在27例儿科患者（年龄：24小时至12岁）中，沿右胸骨旁线可通过超声心动图轻松记录右心室壁运动。在这些患者中，仅10例患者可在右胸骨旁线记录到右心室心外膜和心内膜壁运动，这凸显了需要一个新的替代检查部位。从右胸骨旁线和左胸骨旁线（7例）记录的右心室壁厚度计算测量值相似（差异范围=0至0.6毫米；平均差异=0.26毫米）。2例患者获得了右心室壁厚度的尸检证实。10例患者在左胸骨旁线无法识别心外膜运动。在这些患者中，通过测量从胸内壁到心内膜来估计右心室壁厚度。将这些测量值与从右胸骨旁线获得的右心室壁厚度进行比较。在没有明确的心外膜界面时，从左胸骨旁线获得的壁厚度明显被低估（差异范围=0.2至2.6毫米；平均差异=1.3毫米）。
