Hmmm,

i am very sensitive to U/S - i once had a physio want to use it on me when i was a student and had back pain (turned out to be kidney stones). Anyway, i told him don't go above 0.5W/cm2 or you will burn me - he seemed dubious and asked if that were true - i don't think he trusted me.

Anyway, he did it and it was going ok and i checked during the treatment because i could feel it heating up a but (which it shouldn't). I think he was trying to prove me wrong to be honest...anyway i got a burnt feeling and jumped up off the table (it hurt!). He quickly turned it off and turned the knobs down and was a bit sheepish - i didn't report him or anything but he really should have listened to me!!!

The moral of the story is (apart from LISTEN to your patients) is that no one so far has talked about the mechanical stimulation of the nerves which might be happening.

I know people who feel 0.5W/cm2 as being very warm (like me) and those who don't feel a thing on 2W/cm2.

I also get a very wierd nervy kind of sensation when i U/S my ankle as a new grad...ATFL is close to branches of the peroneal nerve and posteriorly there is also the sural nerve.

just my thoughts...