Real‐Time Three‐Dimensional Echocardiography Using a Novel Matrix Array Transducer

Sugeng, Lissa; Weinert, Lynn; Thiele, Karl; Lang, Roberto M.

doi:10.1046/j.1540-8175.2003.t01-1-03031.x

Cited by 91 publications

(63 citation statements)

References 74 publications

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“…As diastolic dysfunction develops at an earlier stage compared to systolic dysfunction in the postoperative period, TD echocardiography proves to be a very useful technique for indicating RV dysfunction. [10][11][12] It is possible to obtain information directly about both the systolic and diastolic functions of both ventricles through TD imaging. [13][14][15] Early diastolic e wave representing the relaxation of myocardium decreases in patients with abnormal relaxation.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of right ventricular function in operated tetralogy of Fallot patients with tissue Doppler imaging before and after pulmonary valve replacement

Gürsu

Varan

Erdoğan

et al. 2018

Turk Gogus Kalp Dama

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Background:This study aims to investigate the efficacy of tissue Doppler echocardiography for the diagnosis of right ventricular dysfunction and for the evaluation of the response to pulmonary valve replacement. Methods: Between December 2008 and December 2010, a total of 15 patients (8 males, 7 females; mean age: 14.5±4.5 years; range, 7 to 22 years) with pulmonary valve insufficiency in the follow-up of total correction of tetralogy of Fallot who underwent pulmonary valve replacement were included in the study. Echocardiographic imaging was performed before and one, three, and six months after replacement. Using pulse wave Doppler, early diastolic E and late diastolic A waves were measured in the flow velocity curve of tricuspid valve. Tissue Doppler measurements were made from the basal segment of right ventricular free wall and interventricular septum. S, e, and a myocardial velocities, isometric contraction time, isovolumetric relaxation time and ejection time were measured. Myocardial performance index was calculated for each patient. Results:In pre-pulmonary valve replacement phase, s, e, a velocities and ejection time were lower in the interventricular septum compared to the basal segment of right ventricular free wall, while isometric contraction time, isovolumetric relaxation time and myocardial performance index values were higher. In the first post-replacement month, there was a significant decrease in the s value of interventricular septum, compared to pre-pulmonary valve replacement period; isometric contraction time decreased and myocardial performance index increased in the first postpulmonary valve replacement month in the free wall of right ventricle, while isovolumetric relaxation time decreased in the postoperative third month, and s velocity, isometric contraction time and myocardial performance index increased in the postoperative sixth month. Pre-pulmonary valve replacement tissue Doppler values at the septum showed that myocardial systolic and diastolic dysfunction developed earlier than the basal segment of right ventricular free wall. This result showed that right ventricular recovery was not complete in the sixth post-pulmonary valve replacement month. Conclusion:Tissue Doppler can show right ventricular dysfunction before replacement, but it may be insufficient to visualize right ventricular recovery until six months after treatment.

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Section: Discussionmentioning

confidence: 99%

Evaluation of right ventricular function in operated tetralogy of Fallot patients with tissue Doppler imaging before and after pulmonary valve replacement

Gürsu

Varan

Erdoğan

et al. 2018

Turk Gogus Kalp Dama

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“…Recent developments in RT3DE, however, go beyond this by allowing 3D visualization of volume rendered images during live scanning, commonly called live 3D echocardiography [9]. Thus, current RT3DE can be used as an integral part of routine echocardiographic examinations allowing rapid change between 2D cross-sectional views and 3D visualization with the press of a button.…”

Section: Chapter 2 · Basic Principles and Practical Applicationmentioning

confidence: 99%

Basic principles and practical application

Buck¹,

Thiele²

2015

Three-Dimensional Echocardiography

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“…This technique uses an ultrasound probe containing a matrix array of elements [18] yielding a three-dimensional pyramid-shaped volumetric data set. Three-dimensional echocardiography has been successfully employed in the measurement of LV function [19] and has been shown to be more reproducible than two-dimensional ultrasound [20].…”

Section: Left Ventricular Functionmentioning

confidence: 99%

The Role of Cardiac Ultrasound in Stem Cell Therapy

Kahn

DeMaria

2009

J. of Cardiovasc. Trans. Res.

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The role of cardiac ultrasound in evaluating and treating patients with stem cell therapy is reviewed. A number of ultrasound techniques can be used in the evaluation, therapy delivery, and follow-up of patients treated with stem cell therapy. These techniques include evaluation of myocardial systolic and diastolic function, perfusion, ischemia, viability, synchrony, and imaging targeted to specific cell types.

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Real‐Time Three‐Dimensional Echocardiography Using a Novel Matrix Array Transducer

Cited by 91 publications

References 74 publications

Evaluation of right ventricular function in operated tetralogy of Fallot patients with tissue Doppler imaging before and after pulmonary valve replacement

Evaluation of right ventricular function in operated tetralogy of Fallot patients with tissue Doppler imaging before and after pulmonary valve replacement

Basic principles and practical application

The Role of Cardiac Ultrasound in Stem Cell Therapy

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