U60 Diagnostic Ultrasound System User Manual Cardiac Measurements and Calculations
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Measurement operation procedure:
1. In the M-cardiac measurement menu, roll the trackball to highlight Mitral to display the
submenu.
2. Roll the trackball to highlight Valve Volume, and press Set.
3. Measure DEV, by the method of generic M mode slope measurement.
4. Measure DCT, by the method of generic M mode time measurement.
5. After the measurement, the result of QMV will be displayed in the measurement result
window.
9.1.3. Aorta
Aorta calculation is as below.
Measurement items:
LAD/ AOD
Aorta calculation
In the M-cardiac measurement menu, roll the trackball to highlight Aorta to display the submenu.
LAD/AOD measurement
1. Roll the trackball to highlight LAD/AOD and press Set.
2. Measure LAD and AOD respectively by the method of generic M mode distance
measurement.
3. The results will be displayed in the measurement result window.
9.1.4. LVMW, LVMWI
LVMW and LVMWI calculations are as below.
Measurement items:
LVPWd, IVSTd and LVIDd
The calculation formula
LVMW (g) = 1.04*[{IVSTd (cm) +LVIDd (cm) +LVPWd (cm)}
3
-LVIDd
3
(cm)
3
]-13.6
LVMWI = LVMW (g)/BSA (m)
2
To calculate LVMW, LVMWI
1. In the M-cardiac measurement menu, roll the trackball to highlight LVMW, and press Set.
2. Measure LVPWd, IVSTd and LVIDd respectively following the prompt instruction.
3. After the measurements, the result of LVMW will be displayed in the measurement result