Figure 145

A. Transesophageal echocardiography probe. The probe is a 100-cm modified gastroscopy.There are two control knobs present on the handle of the probe.T he larger inner knob controls anterior and posterior flexion and the smaller outer knob controls leftward and rightward angulation.





B.Closeup-up views of the transducer of a biplane( on the left) and single plane TEE probe(on the right).Note the centers of the biplane transducers are separated by a distance of 12mm.T= transverse,L=longitudinal.