The amplifier is the component of the ultrasound scanner that amplifies the returning signals and prepares them to be displayed.

Amplitude map is a color Doppler display in which the color corresponds to the amplitude of the Doppler signal.

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An image artifact is any image attribute, which is not present in the original imaged object. An image artifact is sometime the result of an improper operation of the imager, and in other times a consequence of natural processes or properties of the human body.
Artifacts in diagnostic ultrasound are a reflection or an echo, which appears on the display and represents the real anatomical structure not correctly. An artifact can be a false, multiple or misleading information introduced by the imaging system or by interaction of ultrasound with the adjacent tissue.

Artifacts in ultrasound can be classified as to their source like e.g.:
Image artifacts can occur in each medical ultrasound. Then an interpretation of the image is complicated and can eliminate the structural information of objects looking for.

See also Ultrasound Imaging Procedures.

B-scan ultrasonography, or B-scan, is a diagnostic test, for example used in ophthalmology to produce a two-dimensional, cross-sectional view of the eye and the orbit. The presentation of the reflected pulses are displayed in rectangular coordinates, in which the travel time of an ultrasound pulse is represented as a shift along one axis, and the probe movement is represented as a shift along the other axis.

See also Ultrasound Imaging Procedures, A-Scan, C-Scan and D-Scan.