Mindray Consona N9 - Tdi; TDI Mode Image Scanning; TDI Mode Image Parameters

6 Image Acquisition
Operator’s Manual 6 - 21
Steer
Adjusts the scan angle in PW mode, so as to change the angle between the transmitting beam and
flow direction.
Obtain more information with immobility of the probe.
Values of steer angles vary with the probe.
NOTE:
Steer is available only for linear probes.
6.9 TDI
TDI mode is intended to provide information of low-velocity and high-amplitude tissue motion,
specifically for cardiac movement.
There are 4 types of TDI mode available:
• Tissue Velocity Imaging (TVI): This imaging mode is used to detect tissue movement with
direction and speed information. Generally the warm color indicates the movement towards
the transducer, while the cool color indicates the movement away from the transducer.
• Tissue Energy Imaging (TEI): This imaging mode reflects the status of cardiac movement by
providing the energy information, the larger the energy is, the brighter the color becomes.
• Tissue Velocity Doppler Mode (TVD): This imaging mode provides direction and speed
information of the tissue.
• Tissue Velocity M Mode (TVM): This function assists to observe the cardiac motion through a
direct angle.
6.9.1 TDI Mode Image Scanning
Perform the following procedure:
1. Tap <TDI> on the screen or the user-defined <TDI> key to enter the TDI mode.
– 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: Tap <TDI> on the screen or the 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: Tap <TDI> on the screen or the user-defined <TDI> key and then press <M> or
<Update> to enter TVM. The parameters of TVM are displayed on the touch screen.
2. Adjust the image parameters to obtain optimized images.
3. Tap <TDI> on the screen or the 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.
6.9.2 TDI Mode 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: