Mindray DC-80 User Manual

Image Optimization 5-109
Also on Bull’s Eye graph, the system displays TPSD value:
Time to Peak Standard Deviation (TPSD):
 
N
TPTP
TPSD
N
i



1
2
Where, standardized value of time to peak data:

 
NiTP
i
,1| 
. (N is the number of time to peak
data)Average value of standardized value of time to peak data :
TP
4---Display curve: Velocity/ Displacement/ Strain/ Strain Rate. Each curve on the image is matched
with a certain segment in the cardiac segmentation model (6), identified by different colors.
Velocity curve
X-axis represents time (s);
Y-axis represents velocity (cm/s).
Displacement curve
X-axis represents time (s);
Y-axis represents displacement (mm).
Strain curve
X-axis represents time (s);
Y-axis represents deformation of the tissue (%).
Strain-rate curve
X-axis represents time (s);
Y-axis represents strain by time (s
-1
).
5---Displays corresponding time of AVO (aortic valve open)/ AVC (aortic valve close)/ MVO (mitral
valve open)/ MVC (mitral valve close).
6--- Displays cardiac segmentation model, and each segment name is illustrated beneath the
model.
 In the figure, points out the peak position of the curve.
 Click certain segment in the cardiac segmentation model, the segment will turns grey and its
corresponding curve no longer displays.
 You can get the current X/Y axis value by moving the cursor onto one point on the curve; and if
you press <Set> at this time, the frame marker will move to the spot.
5.15.3 Select Image and Cardiac Cycle
You can select images with a better image quality to get a better analysis result.
 Switch the cine file
1. Tap <Review> on the control panel to enter review status;
2. Double-click the target file;
3. The system closes current displayed file and switch to the newly selected file.
 Switch cardiac cycle within the cine file
Tap [Circle] to select when opening a cine which includes multiple cardiac cycles.
5.15.4 Myocardial Boundary Tracing
 The system provides 2 kinds of tracing method for 2 kind of sections:
 Long axis section (A4C, A2C, ALAX): 3-point method and manual tracing method are both
available.
 3-point method
As shown in the following figure, after operation by pressing <Set> to place 3 points
clockwise on the image, the system generates the trace automatically.

Mindray DC-80 Specifications

General

Imaging Modes	B, M, Color Doppler, Power Doppler, Pulsed Wave Doppler, Continuous Wave Doppler, Tissue Doppler, 3D/4D Imaging
Probes	Convex, Linear, Phased Array, Volume
Advanced Features	Auto Optimization, Auto EF
Connectivity	DICOM 3.0, USB, HDMI, VGA, Ethernet
Transducer Ports	4
Applications	Abdominal, Cardiac, Obstetrics/Gynecology, Vascular, Small Parts, Musculoskeletal, Urology, Pediatrics, Neonatal
Transducer Types	Convex, Linear, Phased Array, Volume
Power Supply	100-240V AC, 50/60Hz
Operating Temperature	10°C to 40°C
Storage Temperature	-20°C to 60°C
Humidity	30% to 80%