User's Manual
Table Of Contents
- M-Turbo Ultrasound System User Guide
- Contents
- Introduction
- Chapter 1: Getting Started
- Chapter 2: System Setup
- Displaying the setup pages
- Restoring default settings
- A & B Key, Footswitch setup
- Administration setup
- Annotations setup
- Audio, Battery setup
- Cardiac Calculations setup
- Connectivity setup
- Date and Time setup
- Display Information setup
- IMT Calculations setup
- Network Status setup
- OB Calculations setup
- OB Custom Measurements setup
- OB Custom Tables setup
- Presets setup
- System Information setup
- USB Devices setup
- Chapter 3: Imaging
- Chapter 4: Measurements and Calculations
- Chapter 5: Troubleshooting and Maintenance
- Chapter 6: Safety
- Ergonomic safety
- Electrical safety classification
- Electrical safety
- Equipment safety
- Battery safety
- Clinical safety
- Hazardous materials
- Electromagnetic compatibility
- ALARA principle
- Acoustic artifacts
- Guidelines for reducing MI and TI
- Output display
- Transducer surface temperature rise
- Acoustic output measurement
- Acoustic output tables
- Labeling symbols
- Chapter 7: References
- Chapter 8: Specifications
- Glossary
- Index
Chapter 7: References 143
References
LVDS=LeftVentricularDimension
atSystole
LVEDV=(7.0*LVDD
3
)/(2.4+LVDD)
where: LVEDV=LeftVentricularEnd
DiastolicVolume
LVDD=LeftVentricularDimension
atDiastole
Left Ventricular Mass in gm
Oh,J.K.,J.B.Seward,A.J.Tajik.TheEchoManual.
2ndEdition,Boston:Little,BrownandCompany,
(1999),39.
LVMass=1.04[(LVID+PWT+IVST)
3
–LVID
3
]*
0.8+0.6
where: LVID=InternalDimension
PWT=PosteriorWallThickness
IVST=InterventricularSeptal
Thickness
1.04=Specificgravityofthe
myocardium
0.8=Correctionfactor
Left Ventricular Volume: Biplane Method in
ml
Schiller,N.B.,P. M . Shah,M.Crawford,et.al.
“RecommendationsforQuantitationoftheLeft
VentriclebyTwo‐Dimensional
Echocardiography.”JournalofAmericanSocietyof
Echocardiography.September‐October1989,2:362.
where: V=Volumeinml
a=Diameter
b=Diameter
n=Numberofsegments(n=20)
L=Length
i=Segment
Left Ventricular Volume: Single Plane
Method in ml
Schiller,N.B.,P. M . Shah,M.Crawford,et.al.
“RecommendationsforQuantitationoftheLeft
VentriclebyTwo‐Dimensional
Echocardiography.”JournalofAmericanSocietyof
Echocardiography.September‐October1989,2:362.
where: V=Volume
a=Diameter
n=Numberofsegments(n=20)
L=Length
i=Segment
Left Ventricular Dimension (LVD) Fractional
Shortening, percent
Oh,J.K.,J.B.Seward,A.J.Tajik.TheEchoManual.
Boston:Little,BrownandCompany,(1994),
43‐44.
LVDFS=((LVDD–LVDS)/LVDD)*100%
where: LVDD=LeftVentricleDimensionat
Diastole
LVDS=LeftVentricleDimensionat
Systole
Left Ventricular Posterior Wall Fractional
Thickening (LVPWFT), percent
Laurenceau,J.L.,M.C.Malergue.TheEssentialsof
Echocardiography.LeHague:MartinusNijhoff,
(1981),71.
LVPWFT=((LVPWS–LVPWD)/LVPWD)*100%
where: LVPWS=LeftVentricularPosterior
WallThicknessatSystole
LVPWD=LeftVentricularPosterior
WallThicknessatDiastole
Mean Velocity (Vmean) in cm/s
Vmean=meanvelocity
V
π
4
---
⎝⎠
⎛⎞
a
i
b
i
L
n
---
⎝⎠
⎛⎞
i 1=
n
∑
=
V
π
4
---
⎝⎠
⎛⎞
a
i
2
L
n
---
⎝⎠
⎛⎞
i 1=
n
∑
=