We applaud Sturgess and colleagues [1] for their report on tissue Doppler imaging (TDI) in critical illness. Although their patients were selected and transthoracic echocardiography was performed at variable times after intensive care unit admission, the results provide a glimpse into the use of TDI and have generated many hypotheses. Indeed, there is a paucity of data regarding TDI in the crit...

The myocardial performance index (Tei index) determined by the pulsed Doppler is a simple and noninvasive measurement for assessing global left ventricular (LV) function. This index can also be obtained by tissue Doppler imaging (Tei-TDI). The purpose of our study was to assess the relationship between Tei-TDI and N-terminal pro-brain natriuretic peptide (NTproBNP) levels in patients with dilat...

The mechanical properties of the large arteries are important determinants in the circulation physiology. Quantities associated with vessel wall elasticity are of particular interest since they offer a possibility to separate diseased arteries from healthy. Pulse wave velocity (PWV) is a local measure of the arterial wall elasticity. This paper describes a new improved method for non-invasive l...

conclusions large-scale studies on the healthy black african population could assess the relationship between diastolic dyssynchrony and changes in myocardial performance related to racial differences. results the frequency of some dyssynchrony markers was similar to that of other studies. the difference between maximal time-to-peak systolic velocity and minimal time-to-peak systolic velocity w...

objectives in this study, besides studying the rv function in ssc patients, attempts have been made to find a new possible noninvasive echocardiographic test for early diagnosis of systolic failure as a pah complication. methods 30 patients with at least a 2-year history of diffuse ssc confirmed by an expert rheumatologist were enrolled in this study. all the patients underwent transthoracic ec...

AIM Myocardial performance index (MPI) is usually measured with pulsed wave Doppler (PWD). Our aim was to assess the degree of agreement between PWD and a method based on tissue Doppler imaging (TDI). METHODS AND RESULTS Seventy-five patients with prior myocardial infarction and 20 healthy subjects underwent measurement of time intervals and MPI with PWD and pulsed TDI at septal and lateral s...

The use of Tissue Doppler Imaging Imaging (TDI) has allowed to obtain velocity, strain and strain rate parameters in real time and is currently used routinely in the echocardiography lab. For analysis2D image sequences, profiles are marked on the image, and quantitative time profiles are obtained from them, a procedure known as anatomic M-mode. For correct quantification, the position of the re...

background: iron-mediated cardiomyopathy is the main complication of thalassemia major (tm) patients. therefore, there is an important clinical need in the early diagnosis and risk stratification of patients. the aim of this study was to evaluate the efficacy of tissue doppler imaging (tdi) to study cardiac iron overload in patients with tm using t2* magnetic resonance (mr) as the gold-standard...

AIMS Preliminary studies suggested that tissue Doppler imaging (TDI) was able to identify mutation carriers in familial hypertrophic cardiomyopathy (HCM) before the development of hypertrophy. However, data are limited. We performed a systematic analysis of echocardiography, TDI, and electrocardiogram (ECG) in familial HCM to identify parameters associated with genetic status. METHODS AND RES...