EDAN DUS 60 User Manual page 61

DUS 60 Digital Ultrasonic Diagnostic Imaging System User Manual
LVLs Left Ventricular Length
HR Heart Rate
EDV End Diastolic Volume
ESV End Systolic Volume
SV Stroke volume
CO Cardiac Output
EF Ejection fraction (B mode)
SI Stroke Index
CI Cardiac Index
BSA Body Surface Area
Table 8-8 Measurement and Calculation Items with Bullet Formula
4. Modified SIMPSON formula:
NOTE: d: end diastolic; s: end systolic
Label Description
Left Ventricular Fractional Area of
LVAMd
Mitral Valve
LVLd Left Ventricular Length
Left Ventricular Fractional Area of
LVAPd
Papillary Muscles
LVAMs Left Ventricular Anterior Wall
LVLs Left Ventricular Length
Left Ventricular Fractional Area of
LVAPs
Papillary Muscles
HR Heart Rate
EDV End Diastolic Volume
ESV End Systolic Volume
SV Stroke volume
CO Cardiac Output
EF Ejection fraction (B mode)
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Cardiology Measurements and Calculations
Distance (mm)
Key in (bpm)
EDV (mL)= (5/6)×LVLd (mm)×LVAMd (mm
/1000
ESV (mL)= (5/6)×LVLs (mm)× LVAMs (mm
/1000
SV (mL)=EDV (mL)-ESV (mL)
CO (L/min)= SV (mL) × HR (bpm)/1000
EF (No unit)= SV (mL)/ EDV (mL) x 100%
2
SI (No unit)= SV (mL)/ BSA (m )
2
CI (No unit)= CO (L/min)/ BSA (m )
2
Calculate by the selected formula (m )
Method
2 2 2
Ellipse Area (mm , cm , or dm )
Distance (mm)
2 2 2
Ellipse Area (mm , cm , or dm )
Distance (mm)
2 2 2
Ellipse Area (mm , cm , or dm )
Key in (bpm)
*1
SV (mL)=EDV (mL)-ESV (mL)
CO (L/min)= SV (mL) x HR (bpm)/1000
EF (No unit)= SV (mL)/ EDV (mL) x 100%
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or call 1-800-674-3655
DUS 60 Digital Ultrasonic Diagnostic Imaging System User Manual
SI Stroke Index
CI Cardiac Index
2
) BSA Body Surface Area
Table 8-9 Measurement and Calculation Items with Modified SIMPSON Formula
2
)
*1
=
( )
EDV mL LVLd
=
( ) (
ESV mL LVLs
5. Other measurement and calculation items:
Label Description
LVET Left Ventricular Ejection Time
FS Fractional Shortening
Mean Velocity Circumferential Fiber
MVCF
Shortening
8.2.1. LV
LV measurement is as below.
Single plane ellipse (S-P Ellipse)
Measurement items:
LVLs, LVALs, LVLd, and LVALd
To measure LV:
1. In the B-cardiac measurement menu, roll the trackball to highlight LV. Then select S-P
Ellipse and press Set.
2. During end systolic, measure LVLs and LVALs respectively. The system calculates and
displays the result of ESV.
3. During end diastolic, measure LVLd and LVALd respectively, in the method of generic B
mode distance measurement and generic B mode ellipse area measurement respectively. The
system calculates and displays the results of EDV, SV, and EF.
Dual plane ellipse (B-P Ellipse), Bullet, and Modified Simpson (Mod. Simpson)
The operations in these methods are similar to those in the single plane ellipse method. Please
refer to the corresponding B mode generic measure method for details, and refer to the prompt
instruction to help you.
Cardiology Measurements and Calculations
SI (No unit)= SV (mL)/ BSA (m
CI (No unit)= CO (L/min)/ BSA (m
Calculate by to the selected formula (m
{
× × + × +
( ) 9 / 4 ( 2 ) 2 ( 2 )
mm LVAMd mm LVAPd mm
{
× × 2 + × 2 +
) 9 / 4 ( ) 2 ( )
mm LVAMs mm LVAPs mm
Method
Time (ms)
FS (No unit)={ LVIDd (mm)- LVIDs (mm)}/
LVIDd (mm) x 100%
MVCF (No unit)= { LVIDd (mm)- LVIDs
(mm)}/ {LVIDd (mm) x ET (ms)/1000}
Table 8-10 Other Measurement and Calculation Items
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2
)
2
)
2
)
}
×
( 2 ) ( 2 ) / 1000
LVAMd mm LVAPd mm
}
2 × 2
( ) ( ) / 1000
LVAMs mm LVAPs mm