Regional Atrial Myocardial Velocity in Normal Fetuses: Evaluation by Quantitative Tissue Velocity Imaging

Abstract

We demonstrated that QTVI is reproducible and provides readily obtained parameters that provide unique data regarding segmental atrial myocardial velocity in normal fetuses.

Reproducibility and variability in the assessment of color-coded tissue velocity imaging of the fetal myocardium¬

“…Several studies have reported the feasibility of TD for assessing fetal cardiac function using both spectral TD [3][4][5] and color-coded tissue velocity imaging (TVI) [2,[6][7][8] . The advantage of these methods over conventional echocardiography is their ability to quantify cardiac function by providing detailed regional information about myocardial velocity, displacement and strain pattern [9] -information that in several studies have indicated prenatal pathology [5,6,8,[10][11][12][13][14] .…”

Time Interval Measurements of the Ductus Venosus During the Early Second Trimester of Pregnancy: Reference Ranges and Clinical Application

“…This decrease seems to be the result of the maturation of the atrium, especially for contractility. Similarly, in a previous study, Yang et al demonstrated that the myocardial velocity of the atrium increased with advancing gestation.…”

Diagnostic usefulness of quantitative tissue velocity imaging and anatomic M-mode echocardiography for coronary artery diseases: A pilot study

“…The left ventricle wall was segmented for QTVI according to the 2002 American Heart Association recommendations in 17 standard basal and middle segments. 5 The infero-septal and antero-lateral wall in the apical four-chamber view, anterior and inferior wall in the apical twochamber view, and antero-septal and inferolateral wall in the apical three-chamber view were analyzed with QTVI. The parasternal short-axis views at the level of mitral valve and papillary muscle were analyzed with AMM.…”

“…4 Quantitative tissue velocity imaging (QTVI) is a recent echocardiography technique based on tissue Doppler imaging (TDI), which allows quantifying myocardial motion by simultaneously sampling myocardium in multiple regions of interest. 5 Nevertheless, TDI is obviously limited in the evaluation of movements along the short axis, because the angle of incidence is too large for accurate Doppler measurements. Anatomic M-mode echocardiography (AMM) offers a sampling line that can be rotated 360 and can provide real-time recording of any heart structure in M-mode.…”