Using longitudinal transesophageal echocardiography and the concept of
three-dimensional transthoracic echocardiography, we performed three-
dimensional reconstruction of transesophageal images of various clinic
o-pathologic cases, including atrial septal defect, mitral stenosis, m
itral valve prolapse, and pulmonary stenosis. The hardware equipment a
nd image processing flow chart of three-dimensional reconstruction of
transesophageal echocardiographic images are described in this manuscr
ipt. Our present. study indicates that three-dimensional reconstructio
n of transesophageal echocardiographic images could display multiregio
nal three-dimensional structure of the heart and great vessels, includ
ing superior vena cava, ascending aorta, right ventricular outflow tra
ct, pulmonary artery, and left heart, with clear, visual and stereosco
pic imaging. The regional structures could be displayed at different l
evels of stereo-anatomic sections and at different orientations of rot
ating stereo images, which could provide accurate three-dimensional an
atomical information. for cardiac stereo-morphological study and defin
ition of spatial location and extent of cardiac abnormalities.