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slide 15

In this slide two ultrasound images are shown, measured in a 61 years old volunteer. The left image is measured with 75 MHz ultrasound, the right one with 22 MHz. In both images, the surface of the skin is seen as a bright reflecting layer, below this entry echo a darker, echo-lucent structure is visible, followed by an again echo-rich region. The transition between the dermis and subcutaneous fat layer is nicely visible in both images. The following question arises: Are the same transitions seen with both ultrasound frequencies?


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slide 15