Meltzer R S, Vered Z, Roelandt J, Neufeld H N
Am J Cardiol. 1983 Aug;52(3):375-80. doi: 10.1016/0002-9149(83)90142-x.
Contrast echocardiography was first described in 1968. Since then, many reports have described clinical and experimental uses for the technique. Contrast echocardiography is performed at least occasionally in most echocardiography laboratories, but most physicians use this technique merely to determine the presence of a shunt or, more rarely, for structure identification. Contrast echocardiography can provide much more information. Some different types of information available from contrast echocardiographic records are discussed, including timing of contrast appearance within the cardiac cycle, relative timing of appearance in different cardiac structures, relative intensity of contrast opacification, cyclical changes in contrast opacification, negative contrast effect, slope of contrast trajectories on M-mode contrast echocardiography, and clearance times.
对比超声心动图于1968年首次被描述。从那时起，许多报告描述了该技术的临床和实验用途。在大多数超声心动图实验室中，至少偶尔会进行对比超声心动图检查，但大多数医生仅将该技术用于确定分流的存在，或者更罕见地用于结构识别。对比超声心动图可以提供更多信息。本文讨论了从对比超声心动图记录中可获得的一些不同类型的信息，包括心动周期内对比剂出现的时间、在不同心脏结构中出现的相对时间、对比剂充盈的相对强度、对比剂充盈的周期性变化、负性对比效应、M型对比超声心动图上对比剂轨迹的斜率以及清除时间。
