SonoSite S-Cath - Page 52

42 Calculations
To measure LVd and LVs
1 Onafrozen2DimageorMModetrace,press
Calcs.
2 Fromthecalculationsmenu,selectthe
measurementname.
3 Positiontheactive(green)caliperatthe
startingpoint,andthenclick.(See“Working
withcalipers”onpage 33.)
4 Positionthesecondcaliper,andthenclick.
Anothercaliperappears,andthecalculations
menu
highlightsthenextmeasurementname.
5 Positionthecaliper,andthenclick.Repeatfor
eachmeasurementnameinthecalculation
group.
Eachtimeyouclick,anothercaliperappears,
andthecalculationsmenuhighlightsthenext
measurementname.
6 Savethecalculation.(See“Tosavea
calculation”onpage 38.)
To measure Ao, LA, AAo, or LVOT D
1 Onafrozen2DimageorMModetrace,press
Calcs.
2 Fromthecalculationsmenu,selectthe
measurementname.
3 Positionthecalipers.(See“Workingwith
calipers”onpage 33.)
4 Savethecalculation.(See“Tosavea
calculation”onpage 38.)
To calculate LV Volume (Simpson’s Rule)
1 Onafrozen2Dimage,press Calcs.
2 Dothefollowingforeachmeasurement:
a Fromthecalculationsmenu,selectthe
desiredviewandphase.
b Positionthecaliperatthemitralannulus,
andthenclicktostartthetrace.
TV TRmax (Doppler) Vmax
PGmax
E (Doppler)
A (Doppler)
E
E PG
A
A PG
E:A
PHT (Doppler) PHT
MVA
Decel time
VTI (Doppler) VTI
Vmax
PGmax
Vmean
PGmean
RA pressure
c
RVSP
PV Vmax (Doppler) Vmax
PGmax
VTI (Doppler)
AT (Doppler)
VTI
Vmax
PGmax
Vmean
PGmean
AT
a. You can enter the HR measurement three ways: Patient
information form, Doppler measurement (See “To
calculate Heart Rate (HR)” on page 46), or M Mode
measurement (See “To measure heart rate (M Mode)” on
page 35).
b. Performed at 100 cm/s and 300 cm/s.
c. Specified on the cardiac patient report. See “Cardiac
patient report” on page 52.
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Cardiac
Measurements
(Imaging Mode)
Calculation
Results