Product Manual

Safety
7-18 Vscan – User Manual
GM092207 02
automatically, and should assist in reducing the patient
exposure time.
Changing imaging modes
Acoustic output depends on the imaging mode selected. The
choice of mode (black and white or color imaging) determines
whether the ultrasound beam is stationary or in motion. This
greatly affects the energy absorbed by the tissue (see ‘Acoustic
Output Reporting Tables’ on page 8-2 for TI and MI values in
black and white or color imaging.
ALARA
Ultrasound procedures should be performed using output levels
and exposure times As Low As Reasonably Achievable
(ALARA) while acquiring clinical information.
Training
During each ultrasound examination the user is expected to
weigh the medical benefit of the diagnostic information that
would be obtained against the risk of potential harmful effects.
Once an optimal image is achieved, the need for increasing
acoustic output or prolonging the exposure cannot be justified. It
is recommended that all users receive proper training in
applications before performing them in a clinical setting. Contact
the GE sales representative for training assistance.
Track 3 ALARA Educational Program
The user should be familiar with the document “Medical
Ultrasound Safety”, published by AIUM (American Institute of
Ultrasound in Medicine), see page 8-8. This document is
acceptable to FDA as meeting the content of the ALARA
educational program. In addition to the AIUM document, the
sections ‘Acoustic output and display on the Vscan’ on
page 7-16 and ‘System controls affecting acoustic output’ on
page 7-17 should be studied carefully in order to implement
ALARA.
Environmental protection
System disposal
The device must not be destroyed by incineration. Please return
the device to your local GE representative for disposal.