6. Essential Ultrasound Artifacts

Edge Shadowing Artifact

Edge artifact on ultrasound occurs because of refraction. Ultrasound waves are deflected from their original path when they encounter curved and smooth-walled structures. This will result in a shadow-like line that comes off of the edge of these structures. The most common times you will see this are: vessel walls, gallbladder, cystic structures, testicle, aorta.

Ultrasound Edge Shadowing Artifact
Edge Shadowing Artifact of Internal Carotid Artery

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