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GE Logiq 3 Instruction Manual

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Page 111

Measurement Formulas
LOGIQ 3 Expert/LOGIQ 3 Pro/LOGIQ 3 Advanced Reference Manual 2-35
Direction 5122542-100 Rev. 2
HR (Generic, Dimension, Biplane,  Modified Simpson, Cube/Teicholz, 
Single Plane A4C, Single Plane A2C,  Single Plane LAX, Bullet, Biplane 
Ellipse)
Mode: 2D:CF:Trace:VR2D
Formula: 60/{R-R}
Needs measurement: R-R [Generic , Dimension, Biplane, Modified 
Simpson, Cube/Teicholz, Single Plan e A4C, Single Plane A2C, Single 
Plane LAX, Bullet, Biplane Ellipse]
Measured by: R-R [2DCALIPER]
Used...

Page 112

Measurement Formulas
2-36LOGIQ 3 Expert/LOGIQ 3 Pro/LOGIQ 3 Advanced Reference Manual
Direction 5122542-100 Rev. 2
LVCO Dopp [Aortic]
Mode: PW:VRPW
Formula: {LVOT Diam}^2*0.785*{LVOT VTI}*{HR}/60
Needs measurement: LVOT Diam [Aorti c], LVOT VTI [Aortic], HR [Aortic]
Measured by: LVOT Trace [SDMANTRACE]
LVd Mass (ASE) [Generic]
Mode: MM:CM:AMM:CAMM:VRMM
Formula: ((1.04*(({IVSd}+{LVIDd}+{L VPWd})^3-({LVIDd})^3))*0.8+0.6)/
1000
Needs measurement: IVSd [Generic ], LVIDd [Generic], LVPWd [Generic]
Measured...

Page 113

Measurement Formulas
LOGIQ 3 Expert/LOGIQ 3 Pro/LOGIQ 3 Advanced Reference Manual 2-37
Direction 5122542-100 Rev. 2
LVd Mass Index [Dimension]
Mode: 2D:CF:VR2D
Formula: m/{BSA} where m = ((1. 04*(({IVSd}+{LVIDd}+{LVPWd})^3-
({LVIDd})^3))-13.6)/1000
Needs measurement: IVSd [Dimens ion], LVIDd [Dimension], LVPWd 
[Dimension], LVIDd [Dimension]
Measured by: LVPWd [2DCALIPER]
LVd Mass Index [Generic, Dimension]
Mode: MM:CM:AMM:CAMM:VRMM
Formula: (((1.04*(({IVSd}+{LVIDd}+{LVPWd})^3-({LVIDd})^3))-13.6)/1000)/...

Page 114

Measurement Formulas
2-38LOGIQ 3 Expert/LOGIQ 3 Pro/LOGIQ 3 Advanced Reference Manual
Direction 5122542-100 Rev. 2
LVEF MOD LAX [Single Plane LAX, AutoBiplane]
Mode: 2D:CF:VR2D
Formula: ({LVEDV MOD LAX}-{LVESV MOD LAX})/{LVEDV MOD LAX}
Needs measurement: LVEDV MOD LAX [Single Plane LAX, AutoBiplane], 
LVESV MOD LAX [Single Plane LAX, AutoBiplane]
Measured by: LVESV LAX [2DVOLUMETRACE], EF SP LAX 
[AUTOCALC], AutoVolume [2DAUTOVOLUME]
LVESV MOD BP [Biplane, AutoBiplane]
Mode: 2D:CF:VR2D
Formula:...

Page 115

Measurement Formulas
LOGIQ 3 Expert/LOGIQ 3 Pro/LOGIQ 3 Advanced Reference Manual 2-39
Direction 5122542-100 Rev. 2
LVOT Diam [Mitral Valve]
Mode: CW:PW:VRCW:VRPW
Formula: {LVOT Diam}
Needs measurement: LVOT Diam [Mitral Valve]
Measured by: MP Area [SDMANTRACE]
Used to calculate: MP Area
LVOT VTI [Aortic]
Mode: CW:PW:VRCW:VRPW
Formula: {LVOT VTI}
Needs measurement: LVOT VTI [Aortic]
Measured by: AP Area [SDMANTRACE]
Used to calculate: AP Area
LVOT VTI [Mitral Valve]
Mode: CW:PW:VRCW:VRPW
Formula: {LVOT...

Page 116

Measurement Formulas
2-40LOGIQ 3 Expert/LOGIQ 3 Pro/LOGIQ 3 Advanced Reference Manual
Direction 5122542-100 Rev. 2
LVs Mass A-L [Mass]
Mode: 2D:CF:VR2D
Formula: 1.05*5/6*({LVAs(sax epi)}*({LVLs(apical)}+t)-{LVAs(sax 
PM)}*{LVLs(apical)})/1000 
where: t =sqrt({LVAs sax EPI}/3.14159)-sqrt({LVAs sax PM}/3.14159)
Needs measurement: LVAs sax EPI [Mass], LVAs sax PM [Mass], LVLs 
apical [Mass]
Measured by: LVMass(s) [AUTOCALC]
LVs Mass Ind (ASE) [Generic]
Mode: MM:CM:AMM:CAMM:VRMM
Formula:...

Page 117

Measurement Formulas
LOGIQ 3 Expert/LOGIQ 3 Pro/LOGIQ 3 Advanced Reference Manual 2-41
Direction 5122542-100 Rev. 2
MP Area [Mitral Valve]
Mode: CW:PW:VRCW:VRPW
Formula: {LVOT Diam}^2*0.7 85*({LVOT VTI}/{MP VTI})
Needs measurement: LVOT Diam [Mitral Valve], LVOT VTI [Mitral Valve], 
MP VTI [Mitral Valve]
Measured by: MP Area [SDMANTRACE]
MR ERO [PISA]
Mode: CF:CW:PW:VRCW:VRPW
Formula: {MR Flow}/{MR Vmax}
Needs measurement: MR Flow [PISA], MR Vmax [PISA]
Measured by: MR Trace [AUTOCALC]
MR RV [PISA]
Mode:...

Page 118

Measurement Formulas
2-42LOGIQ 3 Expert/LOGIQ 3 Pro/LOGIQ 3 Advanced Reference Manual
Direction 5122542-100 Rev. 2
MV SV [Mitral Valve]
Mode: CW:PW:VRCW:VRPW
Formula: {MV Ann Diam}^2*0.785*{MV VTI}
Needs measurement: MV Ann Diam [Mit ral Valve], MV VTI [Mitral Valve]
Measured by: MV Trace [SDMANTRACE]
MVA (VTI) [Mitral Valve]
Mode: 2D:CW:PW:VRCW:VRPW
Formula: 3.14/4*{LVOT Diam }^2*{LVOT VTI}/{MV VTI}
Needs measurement: LVOT Diam [Mitral Valve], LVOT VTI [Mitral Valve], 
MV VTI [Mitral Valve]
Measured by:...

Page 119

Measurement Formulas
LOGIQ 3 Expert/LOGIQ 3 Pro/LOGIQ 3 Advanced Reference Manual 2-43
Direction 5122542-100 Rev. 2
Pulmonic SV [Shunts, Congenital Heart]
Mode: CW:PW:VRCW:VRPW
Formula: 3.14159/4*{Pulmoni c Diam}^2*{Pulmonic VTI}
Needs measurement: Pulmonic Diam [Shunts, Congenital Heart], 
Pulmonic VTI [Shunts, Congenital Heart]
Measured by: Pulmonic VTI [SDMANTRACE], Pulmonic VTI 
[SDMANTRACE]
Used to calculate: Pulmonic CO
PV A/MV A Dur [Pulmonary Vein]
Mode: PW:VRPW
Formula: {P Vein A Dur}/{MV A...

Page 120

Measurement Formulas
2-44LOGIQ 3 Expert/LOGIQ 3 Pro/LOGIQ 3 Advanced Reference Manual
Direction 5122542-100 Rev. 2
PV SI [Pulmonic, Valvular PS]
Mode: CW:PW:VRCW:VRPW
Formula: ({PV Ann Diam}^2*0.785*{PV VTI})/{BSA}
Needs measurement: PV Ann Diam [Pulmonic, Valvular PS], PV VTI 
[Pulmonic, Valvular PS]
Measured by: PV Trace [SDMANTRACE]
PV SV [Pulmonic, Valvular PS]
Mode: CW:PW:VRCW:VRPW
Formula: {PV Ann Diam}^2*0.785*{PV VTI}
Needs measurement: PV Ann Diam [P ulmonic, Valvular PS], PV VTI 
[Pulmonic,...
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