What are the most common form of artifacts in ultrasound?
Artifacts
- acoustic enhancement.
- acoustic shadowing.
- aliasing artifact.
- anisotropy.
- bayonet artifact.
- beam width artifact.
- blooming artifact.
- color bruit artifact.
What is anisotropy ultrasound?
Anisotropy in ultrasound examination is an angle-generated artifact. It is produced in tissue that contains multiple, parallel linear sound interfaces (e.g., tendons, ligaments) that lead to the preferential reflection of the beam in one direction.
What are artifacts in physics?
In natural science and signal processing, an artifact or artefact is any error in the perception or representation of any information introduced by the involved equipment or technique(s).
What are the different types of ultrasound artifacts?
How do ultrasound artifacts affect ultrasound image?
Ultrasound artifacts The following artifacts are common in ultrasound imaging: The ultrasound image displays non-existing structures. The ultrasound image does not display existing structures. The ultrasound image misrepresents the echogenicity of structures.
How can refraction be reduced by artifacts?
Refraction artifact should resolve if the transducer is moved such that the incident pulse is perpendicular to the interface.
What is mirror image artifact in ultrasound?
Mirror image artifacts occur when the transmitted pulse and returning echo reflect off of a highly reflective interface (an acoustic mirror) and change direction before returning to the transducer, thereby breaking the assumption of a straight path. There are a variety of interfaces that can act as an acoustic mirror.
What is reverberation artifact?
Reverberation artifacts arise when the beam encounters two highly reflective interfaces in parallel. Instead of the beam reflecting off a single surface and producing a strong echo that returns to the transducer, the ultrasound beam is reflected between the interfaces back and forth multiple times (Fig 7).
Why do artefacts occur in ultrasound?
US artifacts arise secondary to errors inherent to the ultrasound beam characteristics, the presence of multiple echo paths, velocity errors, and attenuation errors.