EDAN DUS 60 - Page 56

DUS 60 Digital Ultrasonic Diagnostic Imaging System User Manual Cardiology Measurements and Calculations
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1. CUBE formula:
NOTE: d: end diastolic; s: end systolic
Table 8-1 Measurement and Calculation Items with CUBE formula
The formulas of BSA calculation:
Oriental: BSA=Weight
0.425
*Height
0.725
*73.58/10000
Occidental: BSA=Weight
0.425
*Height
0.725
*71.84/10000
Height: height cm.
Weight: weight kg.
BSA: body surface area m
2
.
Label Description Method
LVIDd Left Ventricle Internal Diameter
LVIDs Left Ventricle Internal Diameter
Distance (mm)
ET Ejection Time Time (ms or s)
HR Heart Rate M mode heart rate measurement or key in (bpm)
EDV End Diastolic Volume EDV (mL) = LVIDd
3
(mm
3
)/1000
ESV End Systolic Volume ESV (mL) = LVIDs
3
(mm
3
)/1000
SV Stroke volume SV (mL) = EDV (mL)-ESV (mL)
CO Cardiac Output CO (L/min) = SV (mL) x HR (bpm)/1000
EF Ejection fraction (M mode) EF (No unit) = SV (mL)/ EDV (mL) x 100%
FS Fractional Shortening
FS (No unit) = [{ LVIDd (mm)- LVIDs (mm)}/ LVIDd
(mm) ]x 100%
SI Stroke Index SI (No unit) = SV (mL)/ BSA (m
2
)
CI Cardiac Index CI (No unit) = CO (L/min)/ BSA (m
2
)
MVCF
Mean Velocity Circumferential
Fiber Shortening
MVCF (No unit) = { LVIDd (mm)- LVIDs (mm)}/ {LVIDd
(mm) x ET (ms)/1000}
BSA Body Surface Area Calculate by the selected formula (m
2
)
DUS 60 Digital Ultrasonic Diagnostic Imaging System User Manual Cardiology Measurements and Calculations
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2. TEICHHOLZ formula:
NOTE: d: end diastolic; s: end systolic
Label Description Method
LVIDd Left Ventricle Internal Diameter Distance (mm)
LVIDs Left Ventricle Internal Diameter Distance (mm)
ET Ejection Time Time (ms or s)
HR Heart Rate M mode heart rate measurement or key in (bpm)
EDV End Diastolic Volume EDV (mL) = {7 × LVIDd
3
(cm)
3
}/{2.4+ LVIDd (cm)}
ESV End Systolic Volume ESV (mL) = {7 × LVIDs
3
(cm)
3
}/{2.4+ LVIDs
(
cm)}
SV Stroke volume SV (mL) = EDV (mL)-ESV (mL)
CO Cardiac Output CO (L/min) = SV (mL) × HR (bpm)/1000
EF Ejection fraction (M mode) EF (No unit) = SV (mL)/ EDV (mL) ×100%
FS
Fractional Shortening
FS (No unit) = [{ LVIDd (mm)- LVIDs (mm)}/ LVIDd
(mm)] ×100%
SI Stroke Index SI (No unit) = SV (mL)/ BSA (m
2
)
CI Cardiac Index CI (No unit) = CO (L/min)/ BSA (m
2
)
MVCF Mean Velocity Circumferential
Fiber Shortening
MVCF (No unit) = {LVIDd (mm)- LVIDs (mm)}/ {LVIDd
(mm) x ET (ms)/1000}
BSA Body Surface Area Calculate by the selected formula (m
2
)
Table 8-2 Measurement and Calculation Items with TEICHHOLZ formula
3. Other measurement items:
Label Description Method
AOD Aortic root Diameter
LAD Left Atrium Diameter
CA Cardiac cycle apex A
CE Cardiac cycle apex E
Distance (mm)
EF SLP Ejection Fraction Slope
ACV AC Decreasing Velocity
DEV Deceleration Velocity
Slope (mm/s)
DCT Deceleration Time Time (ms or s)