Yes. The gel aids the sound transmission so that it doesn’t have to travel through air and is designed to have the same impedance as skin. https://www.ncbi.nlm

Yes. The gel aids the sound transmission so that it doesn’t have to travel through air and is designed to have the same impedance as skin. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8774352 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8774352 https://www.animalultrasoundassociation.org/what-is-ultrasound-gel-for/ https://www.animalultrasoundassociation.org/what-is-ultrasou... Secondary effect is that it lubricates the probe when you move it on the skin. And then it also gives you a good chill which is to notify your organs that they are about to be photographed.