[Multi-plane transesophageal echocardiography--the next step to 3 dimensional imaging of the heart].

The multiplane transesophageal echocardiography (MTEE) is a new method making the precise imaging of the heart and great vessels possible. That technique allows to obtain the images of cardiovascular structures in two perpendicular investigation planes ("biplane" operation): transverse (examination angle is equal to 90 degrees--in relation to long axis of esophagus) and longitudinal = sagittal (examination angle is equal to 0 degree--in relation to long axis of esophagus) and, as well, in all medial planes enclosed from 0 degree to 90 degrees examination angle. During the investigation planes were being rotated mechanically or manually by rotation wheel. Passing from one plane to another is fluent, due to that the heart and main vessels can be observed continuously. Sector angle variability is 180 degrees (from minus 90 degrees to plus 90 degrees). The investigation planes from 0 degrees to plus 90 degrees from so called "normal" visualization field, and planes from 90 degrees to 0 degree make a "mirror" reflection of the "normal" field (mirror field). In our investigations the Vingmed-Sonotron echocardiograph connected with 5 MHz annular phased--array transducer, placed at the end of flexible endoscope was used. The multiplanar transducers have a full Doppler option (pulsed and continuous waves) with the possibility of colour flow imaging. The initial experience with the new method is presented in this report. The MTEE enables precise assessment of atrial septal defects. The multiplane imaging allows complete evaluation of heart muscle thickness and left ventricular contractility. This technique gives a better visualization of coronary artery. MTEE permits for planimetric assessment of aortic valve.(ABSTRACT TRUNCATED AT 250 WORDS)