Brenner J I, Baker K, Ringel R E, Berman M A
J Am Coll Cardiol. 1984 Jun;3(6):1515-20. doi: 10.1016/s0735-1097(84)80291-0.
M-mode and two-dimensional echocardiographic studies were carried out on 100 consecutive neonates, infants and children to evaluate the incidence of left ventricular chordae or bands. These fibromuscular structures were noted in 61 subjects and were seen to traverse both the long and short axes of the left ventricle. Although a single left ventricular band was usually noted, several subjects had multiple bands. These bands were seen in normal subjects and in patients with a wide variety of congenital cardiac lesions. Distortion of left ventricular geometry was noted in one subject. Identification of these linear echoes is essential to allow differentiation of left ventricular bands from true anatomic left ventricular outflow tract obstruction or septal thickening.
对100例连续的新生儿、婴儿及儿童进行了M型和二维超声心动图研究，以评估左心室腱索或条索的发生率。在61例受试者中发现了这些纤维肌性结构，它们横穿左心室的长轴和短轴。虽然通常只发现一条左心室条索，但有几个受试者有多条条索。这些条索在正常受试者以及患有多种先天性心脏病变的患者中均可见到。在1例受试者中发现左心室几何形态有扭曲。识别这些线性回声对于区分左心室条索与真正的解剖学上的左心室流出道梗阻或室间隔增厚至关重要。
