34 Measurements
•Toswitchtheactiveset,press Switch.
To delete or edit a measurement
Withthe measurementactive(highlighted),
dooneofthefollowing:
•Todelete,presstheDeleteknob.
•Toedit,usethetouchpadtomovethe
calipers.Youcaneditonlydistanceand
area/circumferencemeasurements.
To place calipers more precisely
Doanyofthefollowing:
•Adjustthedisplayformaximum
sharpness.
•Useleadingedges(closesttothe
transducer)orbordersforstartingand
stoppingpoints.
• Maintainaconsistenttransducer
orientationforeachtypeofmeasurement.
•Makesurethatthe areaofinterestfillsas
muchofthescreenaspossible.
• Minimizethedepth,
orzoom.
2D measurements
Youcanperformacombinationofdistance,area,
andcircumferencemeasurementsatonetime.
Thetotalnumberpossibledependsontheirorder
andtype.
To measure distance
Distanceismeasuredincm.
1 Onafrozen2Dimage,press Calipers.
Apairofcalipersappears,connectedbya
dottedlineandlabelledA.
2 Usingthetouchpad,positionthefirstcaliper,
andthenclick.
Theothercaliperbecomesactive.
3 Usingthetouchpad,positiontheothercaliper.
Seealso“Toadd
calipers(2D)”onpage 34and
“Tosaveameasurementtoacalculationand
patientreport”onpage 33.
To measure area and circumference
Areaandcircumferencemeasurementsusean
ellipsewithcalipers.Areaisincm
2
,and
Circumferenceisincm.
1 Onafrozen2Dimage,press Calipers.
2 Press Ellipse.
3 Usethetouchpadtoadjustthesizeand
positionoftheellipse.Clickingtoggles
betweenpositionandsize.
Seealso“Toaddcalipers(2D)”onpage 34and
“Tosaveameasurementtoacalculationand
patientreport”onpage 33.
To trace manually
1 Onafrozen2Dimage,press Calipers.
2 Press Manual.
3 Usingthetouchpad,positionthecaliper
whereyouwanttobegin,andthenclick.
4 Usingthetouchpad,begintracing.
Tomakeacorrection,press Undo.
5 Completethetrace,andthenpressSetor
click.
Themeasurementislabeled A.
See
also“Toaddcalipers(2D)”onpage 34and
“Tosaveameasurementtoacalculationand
patientreport”onpage 33.
To add calipers (2D)
Withameasurementactive,youcanaddcalipers
toperformadditionalmeasurements.
Pressoneofthefollowing:
• Add Calipertomeasuredistance