6- How to perform an ultrasound Flashcards
How to make sure the ultrasound waves can penetrate into tissue
clip hair
remove dirt and skin oil using alcohol
apply ultrasound gel
ensure contact between transducer and skin
Describe a linear transducer
creates a rectangular beam
requires full contact along the surface of the transducer to get a full cross sectional image
Describe a curved transducer
creates a triangular beam
requires only a small contact area
What is the purpose of a standoff
increases the distance between transducer and the skin
move superficial structures further away from the transducer
What do you need to consider when selecting the appropriate frequency for ultrasound
choose the highest frequency possible for the depth of structure you want to see
high frequency= good resolution but not good depth of penetration