Acclarix AX8/Acclarix AX7 Diagnostic Ultrasound System User Manual Imaging
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5.8 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:
Color-TDI mode: shows the speed and direction of tissue motion on real-time Color image.
PW-TDI mode: shows the speed of tissue motion on Strip Doppler image.
5.8.1. TDI Mode Operations
To use Color-TDI mode:
1. Press <Color> on the console.
2. Press TDI mode button on Color-mode touch screen to invoke Color-TDI mode.
3. Use the trackpad to adjust the position of ROI box.
While in Color-TDI mode, you can do the follows to invoke PW-TDI mode:
1. Press <D> on the console and use the trackpad to move the sample volume gate to desired
position.
2. Press <D> or <Update> on the console to invoke PW-TDI mode.
To use PW-TDI mode:
1. Press <D> on the console and use the trackpad to move the sample volume gate to desired
position.
2. Press TDI mode button on the touch screen to invoke PW-TDI mode.
5.8.2. TDI Touch Screen Controls
Touch screen controls that can be adjusted in Color-TDI mode are the same as those in Color mode,
see section 5.2.3 Color Image Optimization for details. Touch screen controls that can be adjusted in
PW-TDI mode are the same as those in PW mode, see section 5.3.2 PW Image Optimization for
details.
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