41
5.1.2
Conventional measurements in M mode
M mode measurements are as follows:
Measure item
Function
Distance
Measure the distance between any two points on a vertical line at a
given time.
Time
Measure the time interval between two points on the M image.
Gradient
The average slope between two points is calculated by measuring the
distance and time of the two points.
Heart rate
On M cardiogram, the interval between two cardiac cycles was
measured and the heart rate was calculated.
5.1.3
Conventional measurements in Doppler mode
PW mode measurements are as follows:
Measure item
Function
D speed
On Doppler images, the velocity and pressure difference at some point
in the Doppler spectrum waveform are measured.
PS/ED
The velocity (PS) of the systolic peak point and the velocity (ED) of the
end diastolic phase were measured on the blood flow waveforms in
Doppler images and their pressure difference and resistance index RI,
ratio were calculated.
D trace
The clinical parameters such as velocity, pressure difference, index
and so on were obtained by depicting the Doppler spectrum
waveforms of two cycles.
5.2
Special measuring package
This product provides the following application measurement capabilities:
⚫
Conventional measurement
⚫
Abdominal application measuring package
⚫
Obstetrical application measuring package
⚫
Gynecological application measuring package
⚫
Cardiac application measuring package
⚫
Small organ application measuring package
⚫
Neural application measuring package
