bk ultrasound Flex Focus 1202, Руководство пользователя

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36 Chapter 2 December 2015 Flex Focus 1202 User Guide (BB1756-Q)
If you start to make a measurement on a 3D data set acquired using the untracked
freehand method, the following warning appears on the monitor:
Warning on
monitor
Picture in Picture
Acoustic Output
General
Medical research has yet to prove whether or not ultrasound causes biological
effects. Therefore, prudent use considerations require you to follow certain
guidelines; see EN60601-2-37 [3]
(Particular requirements for the safety of
ultrasonic medical diagnostic and monitoring equipment).
Prudent Use
3D
measure-
ments
WARNING 3D-w1
Measurements obtained with the 3D system and used in diagnosis must be carefully and
thoughtfully performed to ensure accurate quantitative assessment. Before you perform
a calculation, make sure that all necessary calibrations and measurements are made.
If you suspect that the 3D system’s calibration is inaccurate (that is, the measurements are
not as expected), contact your local BK service representative to check and confirm the
system’s proper operation.
Untracked
freehand
WARNING 3D-w2
You cannot make accurate measurements on a 3D data set acquired using the untracked
freehand method.
Symbol Description
Measurement will not be accurate.
PiP must not
cover
important
information
WARNING PIP-w1
When you use Picture in Picture, do not cover critical information (such as TI or MI) on the
monitor. Make sure that all important information will appear if you print or save the
ultrasound image.
Exposure
level
WARNING AO-w1
To avoid tissue damage, always keep the exposure level (the acoustic output level and the
exposure time) as low as possible.