P11 EXP
Portable Digital Color Doppler Ultrasound System
8-1
Chapter 8
TDI Mode (Tissue Doppler
Imaging)
Tissue Doppler Imaging (TDI) captures the wall motion of vessels and creates a color image
displaying the tissue motion. TDI is a cardiography technique, so it can only be used in
cardiology application modes.
Like conventional Doppler mode, TDI also uses Doppler principle. However, in TDI mode
high amplitude (high intensity), low frequency tissue motion is quantified. In contrast, in the
conventional Doppler mode low amplitude (low intensity), high frequency blood motion is
quantified.
TDI can also work with other imaging modes to form duplex and triplex modes.
Caution!
Only phased array probes (2P1) are TDI capable.
Contents
8.1
Starting TDI Mode ........................................................................................... 8-2
8.2
TDI Image Information..................................................................................... 8-2
8.3
TDI Mode Operation ........................................................................................ 8-2
8.3.1
Real Time TDI Mode Menus ............................................................. 8-2
8.3.2
Adjust TDI Sample Box ..................................................................... 8-2
8.3.3
Pulse Repetition Frequency .............................................................. 8-3
8.3.4
Wall Filter ...........................................................................................8-3
8.3.5
TDI Gain ............................................................................................8-3
8.3.6
Persistence ....................................................................................... 8-3
8.3.7
Color Map .......................................................................................... 8-4
8.3.8
TDI Power .............................................................................................. 8-4
8.3.9
Baseline ............................................................................................. 8-4
8.3.10
Sector Width and Position ................................................................. 8-4
8.3.11
B Reject .............................................................................................8-5
8.3.12
TDI Frequency .................................................................................. 8-5
8.3.13
Image Orientation (Left/Right) ........................................................... 8-5
8.3.14
Flow Invert ........................................................................................ 8-5
8.3.15
Line Density ...................................................................................... 8-5
8.3.16
2D Refresh ........................................................................................ 8-6
8.4
Cine Mode Operation ...................................................................................... 8-6
8.4.1
C Map ................................................................................................8-6
Содержание P11 EXP
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