Martins T C, Rigby M L, Redington A N
Department of Paediatric Cardiology, Royal Brompton National Heart and Lung Hospital, London.
Br Heart J. 1992 Nov;68(5):485-7. doi: 10.1136/hrt.68.11.485.
To compare M mode derived indices of left ventricular performance obtained with transthoracic and transoesophageal echocardiography in children with congenital heart disease.
Transthoracic and transoesophageal M mode echocardiograms were obtained under general anaesthesia before cardiac catheterisation. Recordings were digitised by dedicated software. Indices of cavity dimension and left ventricular wall dynamics were compared.
16 unselected patients with congenital heart disease.
Group data for simple measurements of ventricular dimension and wall thickness were similar with the two techniques and had acceptable coefficients of repeatability, but there were considerable individual differences. Correlation was poor with unacceptable repeatability for derived indices of cavity and ventricular wall dynamics.
Both transthoracic and transoesophageal echocardiography can be used to obtain M mode derived indices of left ventricular performance but the resultant measurements are not directly comparable, presumably because of regional non-uniformity of function.
比较经胸超声心动图和经食管超声心动图获得的先天性心脏病患儿左心室功能的M型衍生指标。
在心脏导管插入术前全身麻醉下获取经胸和经食管M型超声心动图。记录由专用软件数字化。比较腔室大小和左心室壁动力学指标。
16例未经挑选的先天性心脏病患者。
两种技术对心室大小和壁厚度的简单测量的组数据相似，且具有可接受的重复性系数，但个体差异较大。对于腔室和心室壁动力学的衍生指标，相关性较差且重复性不可接受。
经胸和经食管超声心动图均可用于获得左心室功能的M型衍生指标，但所得测量结果不能直接比较，可能是由于功能的区域不均匀性。
