Tissue Doppler Imaging

Tissue Doppler Imaging (TDI) is an emergingnon-invasive ultrasound technique that makes it possible to measure velocities at any point of the ventricular wall during the cardiac cycle. Over the last ten years, TDI has been proposed as a feasible and useful imaging tool that provides information on regional wall motion dynamics.

Fig. 2: Two-dimensional colour coded velocities of left atrial appendage walls....
Fig. 2: Two-dimensional colour coded velocities of left atrial appendage walls. Left atrial appendage walls are depicted in lighter red (A) and blue colour (B) because of the motion of the appendage to and from the probe (contraction and relaxation). Left atrial appendage has also passive emptying and filling and the relative wall movements are coded in blue (C) and red colour (D), respectively.

This article was first published in the VISIONS, issue 1/2001, a publication of Toshiba Medical Systems


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