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Atlas of Human Body Ultrasound Scanning_ Methods and Diagnostic Applications ( PDFDrive ).pdf
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106

S. He

 

 

2.31\ Main Pulmonary Artery Long-

Axis View by Subxiphoid

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Fig. 6.35  Main pulmonary artery long-axis view by subxiphoid

2.31.1\ Scanning Methods

The patient lies supine or on the left-anterior position. The transducer is placed to the subxiphoid (subcostal) area and rotated 45–90° clockwise on the base of the subcostal four-chamber view, with the beam directed towards the left shoulder.

2.31.2\ Section Structure

Structures visualized are the main pulmonary artery, left and right pulmonary artery, right ventricular outflow tract, aorta, and aortic valve.

2.31.3\ Measuring Method and Normal Value

Transverse diameter of main pulmonary artery is 20 ± 5 mm, while both left and right pulmonary artery have the same transverse diameters: 12 ± 5 mm.

2.31.4\ The Clinical Application Value

When the basal structures of heart cannot be seen clearly in a precordial region scan because of the air in lung, this view can be used as the supplementary scan.