User's Manual

Chapter 4: Measurements and Calculations 67
Measurements
2 OnafrozenDopplerspectraltrace,pressthe
CALCSkey.
3 Fromthecalculationsmenu,selectLeftor
Right.
4 Dothefollowingforeachmeasurementyou
wanttotake:
a Fromthecalculationsmenu,selectthe
measurement.(Youmayneedtoselect
NextorPrevtolocatethemeasurement.)
b Dooneofthefollowing:
•Foramanualtracemeasurement,usethe
touchpadtopositionthecaliper.Pressthe
SELECTkey.Usethetouchpadtotracethe
waveform.
Ifyouneedtomakeacorrection,select
Undoon‐screenorpressthe
BACKSPACE
key.
•Foranautotracemeasurement,select
Autoon‐screen,andusethetouchpadto
positionthefirstcaliperatthebeginning
ofthewaveform.Pressthe
SELECTkey,and
positionthesecondcaliperattheendof
thewaveform.
Confirmthatthesystem‐generated
boundaryiscorrect.Ifyouarenotsatisfied
withthetrace,obtainahigherquality
Dopplerspectraltraceimage,ortrace
manually.
c Pressthe
SETkey.
d Savethecalculation.(See“Tosavea
calculation”onpage 45.)
Vascular calculations
Thevascularmeasurementsthatyoucansaveto
thepatientreportarelistedinthefollowingtable.
Fordefinitionsofacronyms,see“Glossary”on
page 157
WARNING:
To avoid misdiagnosis or harming
the patient outcome, start a new
patient information form before
starting a new patient exam and
performing calculations. Starting a
new patient information form
clears the previous patient’s data.
The previous patient’s data will be
combined with the current patient
if the form is not first cleared. See
“To create a new patient
information form” on page 34.
To avoid incorrect calculations,
verify that the patient information,
date, and time settings are
accurate.
Transducer Exam Type
C11x Vascular
HFL38x Vascular
L25x Vascular
L38x Vascular
SLAx Vascular