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6 High Resolution Ultrasound Imaging
6.1 General principle
Ultrasound skin imaging is based on detecting the acoustic response from the skin and subcuta-
neous tissues when an acoustic pulse is transmitted into- and reflected from the skin. The energy
of the acoustic pulse is very low and will not affect the tissue in any way.
When the emitted acoustic pulse hits the different structures of the skin, part of the pulse will be
reflected, and part of the pulse will be transmitted further into the skin. The reflected signal is de-
tected by the ultrasound transducer. After processing, the cross-sectional image visualized on the
screen represents an intensity (amplitude) analysis of these reflected signals.
The intensity of the received signal refers to a color scale, where dark colors represent areas with
low reflection (i.e. homogeneous composition) and bright colors represent areas with strong re-
flections (i.e. non-homogeneous composition, significant changes in structure density).
6.2 Saving and opening ultrasound images
Ultrasound images are saved and opened as sets of two images. Accordingly, if only one image is
to be saved/opened, the other image position will be saved/opened as an empty image.
The following applies to the use of any ultrasound probe:
When touching Open in the Ultrasound main screen, a new window will appear. Within this win-
dow select Open file (A) to show a list of image files. Select an image file to view the content.
Once chosen, select the target position for the image(s) on the Ultrasound main screen (right or
left, B), and then press to choose one or both images (indicated by the white borderline, C) to be
transferred to the main screen by touching Transfer (D).
The content of the image file is now loaded into the Ultrasound main screen with the image(s) po-
sitioned as set by B.
Ultrasound Open window, Standard probe.
CORTEX TECHNOLOGY ApS
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