Final answer:
Speckle artifact is caused by wave interference and can be observed on images of the left ventricle as a granular pattern. This artifact is created by the constructive and destructive interference of scattered ultrasound waves and is an example of how interference is used as a proof of wave phenomena.
Step-by-step explanation:
The acoustic artifact caused by wave interference and seen on images of the left ventricle is called the Speckle artifact.
Speckle artifact is a type of noise that appears as a granular pattern on ultrasound images, which occurs due to the constructive and destructive interference of scattered ultrasound waves. This phenomenon is akin to the observation of wave interference being used as proof that something is a wave. Just as a figure can show the superposition of two pulses exhibiting destructive interference resulting in partial cancellation, speckle artifacts are created when backs scattered waves interfere with each other in a similar way.
The interference of sound waves is integral in understanding how certain artifacts like the speckle pattern form. It's important to note that artifacts are not real structures but rather visual phenomena occurring due to the imaging technique's limitations or specific characteristics.