Mindray Anesus ME7T, Operator'S Manual

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6 Image Acquisition
Operator’s Manual 6 - 13
Angle
This function is used to adjust the angle between Doppler vector and flow to make the velocity
more accurate.
The real-time adjusting angle value is displayed in the image parameter area.
Quick Angle
Adjusts the angle faster in increments of 60°, and the real-time value of which is displayed in the
image parameter area.
Dynamic Range
The dynamic range conveys the information that being transformed from echo intensity to gray
scale.
Audio
Adjusts the output audio in spectrum Doppler.
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.
TIP:
Steer is available only for linear probes.
6.8 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.
TIP:
TDI is optional.
6.8.1 TDI Mode Image Scanning
Perform the following procedure:
1.
Press <TDI> or the user-defined key to enter the TDI mode.