Mindray DC-8 EXP User Manual

3-14 General Measurement
Measurement Method
The measurement method varies by the result selected, where,
 Velocity
Function: measures the velocity, pressure gradient and correction angle of a certain point on
the Doppler spectrum.
The operations are similar to the Time measurement in M Mode. See "3.4.3 D Vel" for details.
 2 PT
Function: measures the velocity, pressure gradient and correction angle between two points
on the Doppler spectrum.
1. Select items using [2 PT] method on the measurement menu, the cursor displays as a big
“+”.
2. Move the cursor to the starting point to be measured and press <Set> to fix the point.
3. Move the cursor to the end point to be measured and press <Set> to fix the point.
 Spline
1. Select items using [Spline] method from the measurement menu.
2. Move the cursor to the starting point to be measured and press <Set> to fix the point.
3. Move the cursor along the edge of the desired region. Continue to fix the second, third …
point (50 points at most) of spectrum.
4. Press <Set> twice to anchor the last reference point. Or,
The measurement ends automatically when there are 50 reference points.
 Auto Spectrum Calculation
You can also acquire above results by auto calculation, which calculates the recently cardiac
cycles.
z Click [Auto Calc] on the PW image menu to be on, the system traces automatically and
displays the results on the upper right part of the screen.
z Click [Auto Calc Param] on the PW image menu, you can select the parameters to be
calculated.
z Click [Auto Cardiac Cycle] on the PW image menu, you can select the cycle number to be
calculated.
3.4.6 PS/ED
Function: measures the Peak Systolic (PS) velocity and End Diastolic (ED) velocity on the Doppler
spectrum, and calculates their resistance index (RI), S/D and correction angle.
1. Click [PS/ED] in the measurement menu, and the cursor appears on the screen.
2. Move the cursor to the Systolic Peak and press <Set> to fix the point.
3. Move the cursor to the Diastolic End and press <Set> to fix the point.
3.4.7 Volume Flow
Function: measures blood flow through some vascular cross section per unit time.
1. Click [Volume Flow] in the measure menu, and the submenu displays.
2. Click [Vas Area] in the submenu on the touch screen, selections of vas area and PW scope
will be displayed on the bottom of the touch screen:

Mindray DC-8 EXP Specifications

General

Brand	Mindray
Model	DC-8 EXP
Category	Medical Equipment
Language	English