» Articles » PMID: 9934612

Tissue Doppler Imaging and the Quantification of Myocardial Function

Overview
Date 1999 Feb 6
PMID 9934612
Citations 1
Authors
Affiliations
Soon will be listed here.
Abstract

Tissue Doppler imaging (TDI) has recently been introduced in clinical echocardiography. Most widely used are tissue velocity maps, in which the velocity of moving tissue is calculated relative to the transducer from the Doppler shift and displayed as colour-encoded velocity maps in either M-mode or two-dimensional image formats (Doppler velocity mode). This allows detection and quantification of dyssynergic areas of the myocardium. Additionally, the velocities may be studied with pulsed wave-tissue Doppler sampling (PW-TDS) which displays the velocity of a selected myocardial region versus time with high temporal resolution. Less often used, are tissue acceleration maps which display acceleration or velocity change of subsequent frames as different colours (Doppler acceleration mode). These maps may find application in clinical electrophysiology. Another TDI modality is tissue energy imaging, which is based on the integration of the power spectrum of the Doppler signals from the tissue. This technique provides maps of Doppler energy which are represented as colour brightness. Such maps offer potential for the study of myocardial perfusion. TDI modalities have promise to become clinically useful for quantifying myocardial function.

Citing Articles

Visualization of the site of the onset of ventricular depolarization by acceleration mode Tissue Doppler imaging technique.

Cavusoglu Y, Ata N, Timuralp B, Birdane A, Gorenek B, Unalir A Int J Cardiovasc Imaging. 2005; 22(2):171-6.

PMID: 16237498 DOI: 10.1007/s10554-005-9003-5.

References
1.
Palka P, Lange A, Fleming A, Sutherland G, Fenn L, McDicken W . Doppler tissue imaging: myocardial wall motion velocities in normal subjects. J Am Soc Echocardiogr. 1995; 8(5 Pt 1):659-68. DOI: 10.1016/s0894-7317(05)80380-3. View

2.
Isaaz K, Thompson A, Ethevenot G, Cloez J, Brembilla B, Pernot C . Doppler echocardiographic measurement of low velocity motion of the left ventricular posterior wall. Am J Cardiol. 1989; 64(1):66-75. DOI: 10.1016/0002-9149(89)90655-3. View

3.
Oki T, Tabata T, Yamada H, Wakatsuki T, Shinohara H, Nishikado A . Clinical application of pulsed Doppler tissue imaging for assessing abnormal left ventricular relaxation. Am J Cardiol. 1997; 79(7):921-8. DOI: 10.1016/s0002-9149(97)00015-5. View

4.
Miyatake K, Yamagishi M, Tanaka N, Uematsu M, Yamazaki N, Mine Y . New method for evaluating left ventricular wall motion by color-coded tissue Doppler imaging: in vitro and in vivo studies. J Am Coll Cardiol. 1995; 25(3):717-24. DOI: 10.1016/0735-1097(94)00421-L. View

5.
Uematsu M, Nakatani S, Yamagishi M, Matsuda H, Miyatake K . Usefulness of myocardial velocity gradient derived from two-dimensional tissue Doppler imaging as an indicator of regional myocardial contraction independent of translational motion assessed in atrial septal defect. Am J Cardiol. 1997; 79(2):237-41. DOI: 10.1016/s0002-9149(97)89292-2. View