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Atlas of Human Body Ultrasound Scanning_ Methods and Diagnostic Applications ( PDFDrive ).pdf
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6  Echocardiography

107

 

 

2.32\ Transesophageal Two-Atrium

View

a2

a1

LA

LA

Ao

Fig. 6.36  Transesophageal two-atrium view

2.32.1\ Scanning Method

The patient lies on the left side in a lateral position. The transducer is placed at a distance of about 35 cm from the incisor teeth with 45–50° anticlockwise rotation of the beam.

2.32.2\ Section Structure

Structures visualized are the left atrium, right atrium, and interatrial septum.

2.32.3\ Measuring Method and Normal Value

The transverse diameters of left atrium and right atrium are 30 ± 5 and 31 ± 5 mm.

2.32.4\ The Clinical Application Value

This view is used to observe the sizes of left and right atrium and continuity of interatrial septum and to type the atrial septal defects as well as to guide the atrial septal defect closure.