SonoSite S-Cath - M-Mode Measurements; Doppler Measurements

Chapter 4: Measurements and Calculations 35
Measurements
• Ellipse tomeasureareaand
circumference
• Manualtotracemanually
ThesecondmeasurementislabeledB.The
thirdislabeledC,andsoon.
M-Mode measurements
Thebasicmeasurementsthatyoucanperformin
MModeimagingareasfollows:
•Distanceincm/Timeinseconds
•HeartRate(HR)inbeatsperminute (bpm)
Thetimescaleabovethetracehassmallmarksat
200 msintervalsandlargemarksatone‐second
intervals.
To measure distance (M Mode)
Youcanperformuptofourdistance
measurementsonanimage.
1 OnafrozenMModetrace,press Calipers.
Asinglecaliperappears.
2 Usingthetouchpad,positionthecaliper,and
thenclick.
Asecondcaliperappears.
3 Usingthetouchpad,positionthesecond
caliper.
See“Tosaveameasurementtoacalculationand
patient
report”onpage 33.
To measure heart rate (M Mode)
1 OnafrozenMModetrace,press Calipers.
2 Press HR.
Averticalcaliperappears.
3 Usingthetouchpad,positionthevertical
caliperatthepeakoftheheartbeat,andthen
click.
Asecondverticalcaliperappears.
4 Usingthetouchpad,positionthesecond
verticalcaliperatthepeakofthenext
heartbeat.
5 (Cardiac
exam)Ifyouwanttosavethe
measurementtothepatientreport,press
Save HR.
Savingtheheartratemeasurementtothe
patientreportoverwritesanyheartrate 
enteredonthepatientinformationform.
Seealso“Tomeasurefetalheartrate(MMode)”
onpage 51.
To add calipers (M Mode)
Withameasurementactive,youcanaddcalipers
toperformadditionalmeasurements.
 Pressoneofthefollowing:
• Add Calipertomeasuredistance
ThesecondmeasurementislabeledB.The
thirdislabeledC,andsoon.
• HR tomeasureheartrate.Other
measurementsareclearedfromthe
screen.
Doppler measurements
ForDopplermeasurements,theDopplerscale
mustbesettocm/s.See“Presetssetup”on
page 16.