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Color Doppler myocardial imaging: a new technique for the assessment of myocardial function

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TLDR
The concomitant enhancement of the myocardial Doppler signal after an intravenous injection of a transpulmonary echocardiographic contrast agent could permit the noninvasive assessment of regional myocardIAL perfusion.
Abstract
Color Doppler myocardial imaging is a new technique that has been developed specifically to allow color Doppler imaging of myocardial wall motion rather than blood pool imaging. Such a technique has the potential to interrogate velocities, accelerations, and Doppler signal strength within the myocardial wall. Moreover, the concomitant enhancement of the myocardial Doppler signal after an intravenous injection of a transpulmonary echocardiographic contrast agent could permit the noninvasive assessment of regional myocardial perfusion. Thus this new imaging modality could be a valuable adjunct to the ultrasound assessment of myocardial ischemia.

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Citations
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Journal ArticleDOI

Doppler Tissue Imaging: A Noninvasive Technique for Evaluation of Left Ventricular Relaxation and Estimation of Filling Pressures

TL;DR: Mitral E velocity, corrected for the influence of relaxation (i.e., the E/Ea ratio), relates well to mean PCWP and may be used to estimate LV filling pressures.
Journal ArticleDOI

The clinical significance of subclinical thyroid dysfunction.

TL;DR: The mechanisms underlying tissue alterations in SCTD and the effects of replacement therapy on progression and tissue parameters are examined, and the issue of the need to treat slight thyroid hormone deficiency or excess in relation to the patient's age is addressed.
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Two-dimensional strain-a novel software for real-time quantitative echocardiographic assessment of myocardial function.

TL;DR: In this paper, the authors assess the feasibility of 2D strain, a software for real-time quantitative echocardiographic assessment of myocardial function, which is based on the estimation that a discrete set of tissue velocities are present per each of many small elements on the ultrasound image.
References
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Journal ArticleDOI

Real-Time Two-Dimensional Blood Flow Imaging Using an Autocorrelation Technique

TL;DR: In this paper, a new blood row imaging system is described that com- bines a conventional pulsed Doppler device and a newly developed AU-to-correlator, in which the direction of blood Row and its variance are expressed by means of a difference in color and its hue, respectively.
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Regional myocardial functional and electrophysiological alterations after brief coronary artery occlusion in conscious dogs.

TL;DR: Observations indicate that brief interruptions of coronary flow result either in a prolonged period of local ischemia or that alterations of mechanical induced by ischemIA far outlast the repayment of the oxygen debt.

Real-Time Two-Dimensional Blood Flow Imaging Using an Autocorrelation Technique

TL;DR: In the system blood flow within a given cross section of a live organ is displayed in real time and the direction of blood Row and its variance are expressed by means of a difference in color and its hue, respectively.
Journal ArticleDOI

Stress echocardiography and the human factor: The importance of being expert

TL;DR: One hundred stress echocardiographic studies are more than adequate to build the individual learning curve and reach the plateau of diagnostic accuracy that the test can yield.
Journal ArticleDOI

Two-dimensional echocardiography and infarct size: relationship of regional wall motion and thickening to the extent of myocardial infarction in the dog.

TL;DR: Wall motion abnormalities are less precise than thickening in discriminating between infarcts and noninfarcted zones and could lead to overestimation of infarCT size by two-dimensional echocardiography.
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