Cordes T M, O'Leary P W, Seward J B, Hagler D J
Division of Pediatric Cardiology, Mayo Graduate School of Medicine, Mayo Foundation, Rochester, MN 55902.
J Am Soc Echocardiogr. 1994 Jan-Feb;7(1):47-53. doi: 10.1016/s0894-7317(14)80417-3.
Improved echocardiographic equipment and increasing experience have led to accurate and reliable prenatal diagnosis of congenital defects and arrhythmias. However, without a standard convention for acquisition and presentation of fetal images, distinguishing the right side of the fetus from the left side can be difficult and confusing. This article proposes a standard method of image acquisition and presentation that allows confident determination of the fetal right/left axis by easily identified anatomic landmarks. This technique provides a reliable determination of the fetal right/left axis regardless of fetal position (i.e., face up, face down, facing left, or facing right), in both real time and retrospective review. Only after the fetal right/left axis has been determined can accurate diagnoses of fetal atrial and visceral situs, base-apex axis, and cardiac segmental anatomy be made.
超声心动图设备的改进以及经验的增加，已使先天性缺陷和心律失常的产前诊断准确可靠。然而，由于缺乏获取和呈现胎儿图像的标准规范，区分胎儿右侧和左侧可能会困难且令人困惑。本文提出了一种图像获取和呈现的标准方法，通过易于识别的解剖标志来确定胎儿的左右轴。该技术无论胎儿体位如何（即面朝上、面朝下、面朝左或面朝右），在实时和回顾性检查中都能可靠地确定胎儿的左右轴。只有在确定胎儿左右轴后，才能对胎儿心房和内脏位置、心底 - 心尖轴以及心脏节段解剖结构做出准确诊断。
