VDO MG 2100 Specifiche Pagina 446

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446 VisualSonics Vevo 2100 Imaging System Operator Manual Rev 1.1
Appendix I: Declaration of Conformity
MIP (Min)
Minimum Intensity Persistence
highlights the less dense portions of
the volume by bringing them
forward in the image and making
them darker. This more clearly
displays a small dark object in the
middle of a bright ultrasound image.
Operator
A specified operator of the system
with whom study sessions may be
associated.
Power Doppler Mode
Power Doppler Mode displays the
energy from the returning Doppler
signal and assigns a color range to
the energy generated by moving
blood flow. Power Doppler.
Pressure-volume loop
A graphical method of identifying
and evaluating LV pressure-volume
relationship changes related to
dynamic levels of cardiac stress.
PW Doppler Mode
PW Doppler Mode (Pulsed Wave
Doppler) is an ultrasound mode you
can use to measure the velocity and
direction of flow. The Vevo software
presents the detected PW Doppler
signal as both a spectral image in the
display window as well as an audio
output through the system speakers.
Rocker switch
A rocker switch is a spring-return
key that provides the operator with
dynamic and incremental control of
a parameter value. To increase the
parameter value, press the switch
forward; to decrease the value, press
the switch backward.
Sample volume
The region of interest being imaged
during PW Doppler Mode, PW
Tissue Doppler Mode or M-Mode
acquisition. Sample volume size is
defined by the length of the pulse
and the width of the ultrasound
beam.
Scout window
A small B-Mode window that
renders the region of interest for M-
Mode, PW Doppler Mode or PW
Tissue Doppler Mode acquisition.
Session
A period of time that an operator
spends adding information
(acquiring data or making
measurements and/or annotations
on acquired data) to a study.
TIFF
Tagged Image File Format (TIFF) is a
standard still image file format that
includes tagged fields with the
image that can be read by the
opening application.
WAV
WAV is the file extension for a
Waveform file format developed by
Microsoft that includes sound. This
file format is used exclusively in
Windows.
Workstation
VisualSonics offers an optional Vevo
2100 Workstation Software package
which includes all the software tools
and features that you will find on the
Vevo 2100 Imaging System
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