ECHO course

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Standard Imaging Planes

Imaging of the heart by means of ultrasound is limited by thoracic anatomy. Air doesn't propagate ultrasound and because of this imaging of the heart is limited to several so-called 'acoustic windows'. These windows are lef parasternal, apical, subcostal, suprasternal and right parasternal. Because of the properties of ultrasound intrathoracic fluid (for instance pleural or pericardial effusion) makes imaging easier but more intrathoracic air (COPD) makes imaging more difficult.

Parasternal Imaging Planes

Example.jpg

The left parasternal imaging planes are found by placing the transducer in the third or fourth intercostal space on the left of the sternum. There are four standard imaging planes: parasternal long axis (PSLAX) and three parasternal short axis planes (SAX).

Left parasternal long axis