Artifact

Category Artifact Term Sedimentation Artifact Definition of Sedimentation Artifact Layering Of Particulate Material Within Fluid Causing Echogenic Interfaces Notes About Sedimentation Artifact Seen In Complex Effusions

Category Artifact Term Mirror Image Artifact Definition of Mirror Image Artifact Duplicate Structure Appears on the Opposite Side of a Strong Reflector Due to Reflection Path Notes About Mirror Image Artifact Seen Near Diaphragm and Pleura

Category Artifact Term Reverberation Artifact Definition of Reverberation Artifact Multiple Equally Spaced Echoes From Bouncing Between Strong Reflectors or Probe and Tissue Notes About Reverberation Artifact Common Near Pleura or Metallic Objects

Category Artifact Term Ring Down Artifact Definition of Ring Down Artifact Continuous Echo Distal To Gas Bubbles Caused By Resonance Notes About Ring Down Artifact Seen In Pneumobilia Or Air Containing Structures

Category Artifact Term Zipper Artifact Definition of Zipper Artifact Linear Band Of Noise Across Image Caused By RF Interference Or Faulty Shielding Notes About Zipper Artifact Check Room Shielding And Equipment

Category Artifact Term Phase Cancellation Definition of Phase Cancellation Reduction Or Loss Of Echoes When Out Of Phase Signals Interfere Notes About Phase Cancellation Can Reduce Visibility Of Small Structures

Category Artifact Term Side Lobe Artifact Definition of Side Lobe Artifact Off-Axis Energy That Produces Spurious Echoes Outside Main Beam Notes About Side Lobe Artifact Can Create False Structures

Category Artifact Term Acoustic Shadowing Definition of Acoustic Shadowing Hypoechoic or Anechoic Area Distal to a Strongly Attenuating Structure That Blocks Sound Notes About Acoustic Shadowing Seen With Bone, Calculi, or Dense Foreign Bodies

Category Artifact Term Edge Shadowing Artifact Definition of Edge Shadowing Artifact Shadowing At Curved Structure Edges Due To Refraction And Beam Divergence Notes About Edge Shadowing Artifact Common At Gallbladder And Cyst Margins

Category Artifact Term Scintillation Artifact Definition of Scintillation Artifact Rapid Fluctuation In Echo Intensity Due To Microbubble Or Gas Motion Notes About Scintillation Artifact Seen In Contrast And Air Containing Regions