Image Optimization 5-33
In B or B+Color mode: to enter TVI Mode, parameters of TVI mode will be displayed on the
touch screen.
In Power mode: to enter TEI Mode, parameters of TEI mode will be displayed on the touch
screen.
PW mode: Press user-defined <TDI> key, and then press <PW> or <Update> to enter TVD.
The parameters of TVD are displayed on the touch screen.
M mode: Press user-defined <TDI> key, and then press <M> or <Update> to enter TVM.
The parameters of TVM are displayed on the touch screen.
Switching between the TDI modes
In TDI mode, press <C>
, <PD>, <M> or <PW> to swit
ch among the modes.
Exit TDI
Press user-defined <TDI> key to exit from TDI mode and enter general imaging modes.
Or, press <B> on the control panel to return to B mode.
5.10.2 TDI Image Parameters
In TDI mode scan, the image parameter area in the left corner of the screen will show the real-time
parameter values as follows:
TVI/TEI
Meaning Frequency Gain Color Wall Filter Pulse Repetition Frequency PRF
TVD
Items F G WF PRF SVD SV Angle
Meaning Frequency Gain
WF (Wall
Filter)
Pulse Repetition
Frequency PRF
SV
depth
SV
Size
Angle
TVM
Image parameters combine the parameters of TVI mode and M mode.
5.10.3 TDI Image Optimization
In each TDI mode, the parameters that can be adjusted are similar to those in the color flow modes
(Color, PW, and Power). See the relevant sections for details. The following introduces the specific
items in TDI mode.
Flow State
Description This function is used for fast image optimization.
Operations Adjust using the [Flow State] item on the touch screen.
5.10.4 TDI Quantitative Analysis
CAUTION:
TDI is provided for reference, not for confirming a diagnosis.
NOTE: To perform the strain and strain curve, the ECG curve is in need in case of the deviation in
curve.
TDI quantitative analysis is an option.
It is about analyzing the data of TVI imaging and measuring the velocity of the myocardium with the
cardiac cycle.
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