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Measurement Formulas
LOGIQ 7/LOGIQ 7 Pro Advanced Reference Manual
2
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25
Direction 5116269-100 Rev. 2
AP Area [Aortic]
Mode: CW:PW:VRCW:VRPW
Formula: {LVOT Diam}^2*0.785*({LVOT VTI}/{AP VTI})
Needs measurement: LVOT Diam [Aortic], LVOT VTI [Aortic], AP VTI [Aortic]
Measured by: AP Area [SDMANTRACE]
AR ERO [PISA]
Mode: CF:CW:PW:VRCW:VRPW
Formula: {AR Flow}/{AR Vmax}
Needs measurement: AR Flow [PISA], AR Vmax [PISA]
Measured by: AR Trace [AUTOCALC]
AR RV [PISA]
Mode: CF:CW:PW:VRCW:VRPW
Formula: {AR Flow}/{AR Vmax}*{AR VTI}
Needs measurement: AR Flow [PISA], AR Vmax [PISA], AR VTI [PISA]
Measured by: AR Trace [AUTOCALC]
AV Acc Time/ET Ratio [Aortic]
Mode: CW:PW:VRCW:VRPW
Formula: {AV AccT}/{AVET}
Needs measurement: AV AccT [Aortic], AVET [Aortic]
Measured by: AVET [SDTIMECALIPER]
AV Area [Dimension]
Mode: 2D:CF:VR2D
Formula: 3.14/4*{AV Diam}^2
Needs measurement: AV Diam [Dimension]
Measured by: AV Diam [2DCALIPER]
AV CI [Aortic]
Mode: CW:PW:VRCW:VRPW
Formula: (({AV Diam}^2*0.785*{AV VTI})*{HR}/60)/{BSA}
Needs measurement: AV Diam [Aortic], AV VTI [Aortic], HR [Aortic]
Measured by: AV Trace [SDMANTRACE]
AV CO [Aortic]
Mode: CW:PW:VRCW:VRPW
Formula: ({AV Diam}^2*0.785*{AV VTI})*{HR}/60
Needs measurement: AV Diam [Aortic], AV VTI [Aortic], HR [Aortic]
Measured by: AV Trace [SDMANTRACE]
AV SI [Aortic]
Mode: CW:PW:VRCW:VRPW
Formula: ({AV Diam}^2*0.785*{AV VTI})/{BSA}
Needs measurement: AV Diam [Aortic], AV VTI [Aortic]
Measured by: AV Trace [SDMANTRACE]
AV SV [Aortic]
Mode: CW:PW:VRCW:VRPW
Formula: {AV Diam}^2*0.785*{AV VTI}
Needs measurement: AV Diam [Aortic], AV VTI [Aortic]
Measured by: AV Trace [SDMANTRACE]
Table 2-11: Cardiac Calculation Formulas