Diagnostic ultrasound has been in use since the late 1950's (* ). No confirmed adverse biological effects on
patients resulting from this usage have ever been reported. Although no hazard
has been identified that would preclude the prudent and conservative use of
diagnostic ultrasound in education and research, experience from normal
diagnostic practice may or may not be relevant to extended exposure times and
altered exposure conditions. It is therefore considered appropriate to make the
following recommendation:
In those special situations in which examinations are to be carried out
for purposes other than direct medical benefit to the individual being examined,
the subject should be informed of the anticipated exposure conditions, and of
how these compare with conditions for normal diagnostic practice. "
(* ) It really was used since 1942. This
remark is from Dr. Gonzalo Diaz M.
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