Bioeffects; Concerns Surrounding The Use Of Diagnostic Ultrasound; Logiq 7 Advanced Reference Manual Direction 2392205-100 Rev - GE Medical Systems LOGIQ 7 Reference Manual

Acoustic Output

Concerns Surrounding the Use of Diagnostic Ultrasound

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During a diagnostic ultrasound examination, high frequency
sound penetrates and interacts with tissue in and around the
area of anatomy to be imaged. Only a small portion of this sound
energy is reflected back to the probe for use in constructing the
image while the remainder is dissipated within the tissue. The
interaction of sound energy with tissue at sufficiently high levels
can produce biological effects (aka bioeffects) of either a
mechanical or thermal nature. Although the generation of
bioeffect is intentional with therapeutic ultrasound, it is generally
undesired in diagnostic applications and may be harmful in
some conditions.
The American Institute of Ultrasound in Medicine has published
a document entitled "Medical Ultrasound Safety". This three
part document covers Bioeffects and Biophysics, Prudent Use
and Implementing ALARA.
Ultrasound users should read the AIUM to become more familiar
with Ultrasound safety. A copy of this document is included as
part of the documentation package (Document 2163920-100).
To contact the AIUM concerning their publications:
• In the USA, by telephone at 1-800-638-5352.
• To write them, use the following address:
AIUM
14750 Sweitzer Lane
Suite 100
Laurel, MD, USA

Bioeffects

20707-5906
LOGIQ 7 Advanced Reference Manual
Direction 2392205-100 Rev. 1