SONOTRAX(2009) Series Ultrasonic Pocket Doppler User Manual
89
Appendix 4 Ultrasound
Intensity and Safety
A4.1 Ultrasound in Medicine
The use of diagnostic ultrasound has proved to be a
valuable tool in medical practice. Given its known
benefits for non-invasive investigations and medical
diagnosis, including investigation of the human fetus,
the question of clinical safety with regards to
ultrasound intensity arises.
There is no easy answer to the question of safety
surrounding the use of diagnostic ultrasound
equipment. Application of the ALARA (As Low As
Reasonably Achievable) principle serves as a
rule-of-thumb that will help you to get reasonable
results with the lowest possible ultrasonic output.
The American Institute of Ultrasound in Medicine
(AIUM) states that given its track record of over 25
years of use and no confirmed biological effects on
patients or instrument operators, the benefits of the
prudent use of diagnostic ultrasound clearly outweigh
any risks.
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