Acclarix LX9 Series Diagnostic Ultrasound System User Manual
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 three 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.
TVM (Tissue Velocity Motion Imaging) mode: shows the cardiac motion through a direct
angle.
5.8.1. TDI Mode Operations
In Color mode, press TDI on the left of the touch screen to enter TVI mode.
In Color mode, press TDI on the left of the touch screen to enter TVI mode, and then press
<PW> and <Update> button to enter B+TVI+TVD mode.
In Pre-PW mode, press TDI under the PW tab on the touch screen to enter TVD mode.
In M mode, press TDI on the left of the touch screen to enter TVM mode.
5.8.2. TDI Touch Screen Controls
Touch screen controls that can be adjusted in TVI 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 TVD
mode are the same as those in PW mode, see section 5.3.2 PW Image Optimization for details.
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