Enhancement, multipath, and side lobes result in which of the following?

• A. image distortion
• B. resolution problems
• C. clearer images
• D. artifact

Answer: (D)

These phenomena produce echoes that don’t originate from the true tissue boundaries, so they create artifacts in the image. Enhancement brightens echoes behind low-attenuation structures like fluid-filled areas, which can mimic pathology; multipath and side lobes send energy from outside the main beam, generating echoes from off-axis structures and clutter. The net effect is an image artifact that can mislead interpretation.