Triplication artifacts can occur through diffraction and refraction on intersections.

Reverberation artifacts are produced from the multiple reflections from an object if the acoustical impedances of tissue layers are too much different and the detected echo does not run the shortest sound path because it bounces back and forth between the object and the transducer. In a reverberation artifact, the sound wave is reflected back into the body from the transducer-skin interface.

Different sound velocities in tissues are causing false distance artifacts. Ultrasound beams can suffer multiple reflections or specular reflections away from the sensor, giving false distance readings.

A partial volume artifact is caused by the size of the image voxel. The loss of resolution is caused by multiple features present in the image voxel. In ultrasound imaging that occurs when the slice thickness is wider than the scanned structure. This artifact is also called slice thickness artifact or volume averaging artifact.

See also Ultrasound Picture.

The dimension of the ultrasound beam and the transducer array are the origin of the slice thickness artifact. This artifact is also called partial volume artifact or volume averaging artifact.

See also Validation.