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Medical Products and Solutions
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Adjusting the gain and contrast

To display clearer, sharper ultrasound images, the image quality parameters (gain and contrast) of the ultrasound processor need to be properly adjusted.


Gain: Adjusts the brightness of displayed images.
Contrast: Adjusts the difference between the bright and dark parts of displayed images.

Adjusting the sensitivity time control (STC)

Ultrasound waves attenuate according to distance. To compensate for this, adjust the intensity of the ultrasound image at each depth (distance from the transducer). Adjust it so that the image brightness is uniform throughout.

Setting the focus

Focusing on the target (region of interest) improves resolution in the parts of the image that surround the focused area.

Doppler function

The Doppler function detects ultrasound signals from blood flows and converts them into images.


Blood flow and velocity are displayed in color.


Amount of blood flow is displayed in color.


Direction and amount of blood flow are displayed in color. Color smear is minimal. This is useful for detection of microvessels.

Image enhancement function — tissue harmonic echo (THE)

When ultrasound waves are transmitted into region of interest, the ultrasound signals get distorted, generating harmonics*. THE is a technology that achieves visualization by utilizing the harmonic components. It can reduce artifacts that obstruct observation of images.

* Components of frequencies that are integral multiple of those frequencies.

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