Mindray Resona 7, Operator'S Manual

Page: 190 / 451

5-114 Image Optimization
5.16.2 Screen Display of Tissue Tracking QA
1
—Displays image used to generate trace curve
2
—Displays ECG trace
3
—Displays measurement and calculation results:

EDV
：
Maximum value of the end diastolic volume during the trace.

EDA
：
Maximum value of the end diastolic area (Left Ventricular) during the trace.

ESV
：
Maximum value of the end systolic volume (Left Ventricular) during the trace.

ESA
：
Maximum value of the end systolic area (Left Ventricular) during the trace.

FAC (for short axis section): Fractional Area Change= (EDA
— ESA)/EDA

EF (for long axis section): Ejection fraction

HR
：
Heart rate

Global strain of all segments. Displays when strain rate curve is acquired.

Global strain rate of all segments. Displays when strain rate curve rate is acquired.
Also on Bull’s Eye figure, the system displays TPSD value:
Time to Peak Standard Deviation (TPSD):
Where, standardized value of time to peak data:
 
 
N i TP
i
, 1 |

. (N is the number of time to peak data)
Average value of standardized value of time to peak data:
TP
, and the standard deviation is
 
N
TP TP
TPSD
N
i



1
2
.
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).
1
2
3
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