User's Manual

Acclarix LX3 Series Diagnostic Ultrasound System User Manual Imaging
- 53 -
5.7 TDI Mode
Tissue Doppler Imaging (TDI) mode shows information about low-velocity and high-amplitude tissue
motion, usually used to evaluate cardiac tissue motion. Only Phased transducer supports TDI mode.
There are two types of TDI modes available on this system:
 TVI(Tissue Velocity Imaging) mode: shows the speed and direction of tissue motion on real-time
Color image.
 TVD(Tissue Velocity Doppler) mode: shows the speed of tissue motion on Strip Doppler image.
5.7.1. Using TDI mode
1. Press TDI key on the left side of the touch screen to invoke TVI mode.
2. Use the trackball to adjust the position of ROI box.
3. Press <PW> key on the console and use the trackball to move the sample volume gate to desired
position.
4. Press <Update> key on the console to invoke TVD mode.
5.7.2. TDI Image Optimization
Touch screen controls for optimizing TVI image are the same as those in Color mode, see section
5.2.3 Color Image Optimization for details. Touch screen controls for optimizing TVD image are the
same as those in PW mode, see section 5.3.2 PW Image Optimization for details.