Kaixin DCU12, User Manual, Page: 59 / 87

Full Digital Color Doppler Ultrasonic Diagnostic Instrument (Vet) User’s Manual V1.00
- 51 -
4. Press
『
Set
』
key to finish the measurement;
5. Repeat steps two to four to measure next time.
14.1.4 Time measurement
Function: Measure the time interval between two points.
Measurement method:
1. Move the cursor to the
〖
Time
〗
menu item in
【
M Meas
】
menu, press
『
Set
』
key to enter measurement
status;
2. Operate the trackball or the direction keys to move the cursor to the starting point, press
『
Set
』
key to
confirm the starting point of the measurement;
3. Operate the trackball or the direction keys to move the cursor to the end point, now the cursor only
can move horizontal upward and the measured value will be shown on the right of the display area in
real time; press
『
Measure
』
key to exchange the starting point and the end point of the cursor;
4. Press
『
Set
』
key to finish the measurement;
5. Repeat steps two to four to measure next time.
14.1.5 Ratio measurement
Function: measures and calculates the ratio of two cycles, the first measured value as the numerator, the
second measured value as the denominator.
1. Move the cursor to
〖
Ratio
〗
menu item in
【
M Meas
】
menu, press
『
Set
』
key, the cursor shows “+”;
2. Measure the first cycle, the method sees “Time” measurement;
3. Measure the second cycle, the method sees “Time” measurement, the ratio value is real time shown
on the right of the screen;
4.Repeat steps 2 and 3 to start a new ratio measurement.
14.2 M cardiac measurements
In B/M, M mode, move the cursor to menu title, choose
〖
M Car Meas
〗
menu item in
【
M Meas
】
menu,
press
『
Set
』
key to enter M cardiac measurement as the fig below:
Fig. Cardiac measurement menu in M mode
14.2.1 M mode cardiac measurement items
1. TEICHHOLZ formula
Abbreviation Detailed description Algorithm or Operation
LVIDd
Left Ventricular internal diameter, at
end diastole [mm or cm]
M mode distance measurement
LVIDs
Left Ventricular internal diameter, at
end systole [mm or cm]
M mode distance measurement
ET Ejection Time [ms or s] M mode time measurement or keying in
HR Heart Rate [bpm] M mode measurement or keying in
EDV
End-diastolic left ventricular volume
[mL]
EDV[mL]=7*LVIDd
3
[cm]
3
/(2.4+LVIDd [cm])