- Echocardiographic Assessment: High Parasternal View Pulmonary Artery and Sweep to Aortic Arch
- 2D: 2D of this view between the ascending aorta and pulmonary arteries confirms the presence of an AP window.
- Color Doppler: Short sweep from this view between the ascending aorta and pulmonary arteries with color confirms shunting across the AP window.
- Still: Measurements of the large AP window between the ascending aorta and MPA.
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- Modified parasternal short axis view (slightly modified view from picture above)
- Left sternal border
- 3rd or 4th intercostal space (slide upward 1-2 rib spaces and slightly more medial to obtain this modified view)
- Notch pointing towards 3 o'clock