Maugey B, Sicart M, D'Agata P, Delorme G
J Radiol. 1983 Jan;64(1):35-42.
Fetal cardiac biometry was conducted in the TM mode, after real time anatomical outlining of the plane of the four cardiac cavities, on 48 recordings of supposedly normal pregnancies of 23 to 39 weeks of amenorrhoea. Ten measurements were made for each patient, in an immediately subvalvular plane perpendicular to the septum (dimensions of the two ventricular cavities, of the wall of the two ventricles, and of the septum, in diastole and systole respectively). Functional results derived from this data showed that the difference between diastolic and systolic values for ventricular diameters increased with term, the ratio of the diastolic diameter of the right ventricle (RV) to that of the left ventricle (LV) was a constant: 1.23 +/- 0.12, and the size of the RV was always superior to that of the LV (+ + +). Alson noted was that percentage shortening of the LV was superior to that of the RV, and mean percentage thickenings of the RV and septum were inferior to that of the LV. A further observation was that interpretation of the kinetic of the septum requires precise knowledge of the plane of the section in relation to "the pivot point".
在实时勾勒出四个心腔平面后，采用TM模式对48例停经23至39周的疑似正常妊娠进行胎儿心脏生物测量。对每位患者进行十次测量，测量平面位于紧邻瓣膜下方且垂直于隔膜的平面（分别在舒张期和收缩期测量两个心室腔、两个心室壁以及隔膜的尺寸）。从这些数据得出的功能结果显示，心室直径的舒张期和收缩期值之间的差异随孕周增加，右心室（RV）舒张期直径与左心室（LV）舒张期直径的比值恒定：1.23±0.12，且右心室大小始终大于左心室（+++）。还注意到左心室缩短百分比高于右心室，右心室和隔膜的平均增厚百分比低于左心室。进一步观察发现，隔膜运动的解读需要精确了解与“枢轴点”相关的切片平面。
