aortic window

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window /win·dow/ (win´do)

1. a circumscribed opening in a plane surface.

2. the voltage limits that determine which pulses will be allowed to pass on.

aortic window a transparent region below the aortic arch, formed by the bifurcation of the trachea, visible in the left anterior oblique radiograph of the heart and great vessels.

oval window fenestra vestibuli.

round window fenestra cochleae.

aortic window

A radiolucent region, located below the aortic arch, formed by the bifurcation of the trachea, and traversed by the left pulmonary artery.

aortic window

Imaging A space below the inferior margin of the aortic arch and the superior margin of the left pulmonary artery seen on a plain AP chest film

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aorticopulmonary fenestration
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