Cor Vasa 2003, 44(5):257-261
Tissue Doppler imaging II. Tissue tracking-a method for semiquantitative evaluation of myocardial kinetics
- Kardiologické oddělení, Nemocnice Na Homolce, Praha, Česká republika
Tissue Doppler represents one of the main areas of research in echocardiography. It is capable of registering regional myocardial velocities with high time resolution (frame rate of up to 250 Hz) making it easy to study changes in regional myocardial kinetics to an extent which to date has not been available using current noninvasive imaging techniques.
It is evident that the derived parameters (tissue tracking, strain, strain rate) will have a greater impact on clinical practice than single evaluation of myocardial velocities.
One of these parameters-tissue tracking-is a new modality of presenting tissue Doppler data sets. Different coloration of the left ventricular wall having different myocardial velocities aids in the semiquantitative evaluation of regional kinetics and asynergy. This semiquantitative method is especially suitable for evaluating myocardial kinetics before and after interventions (biventricular pacing, percutaneous coronary angioplasty) or during exercise testing (dobutamine echocardiography tests, etc.).
Keywords: Echocardiography; Tissue Doppler; Tissue tracking
Published: May 1, 2003 Show citation