Results 211 to 220 of about 36,495 (251)
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Quantitative analysis of hibernating myocardium by dobutamine tissue Doppler echocardiography
The American Journal of Cardiology, 2001D stress echocardiography is a useful modality to detect hibernating myocardium in patients with chronic coronary artery disease.1,2 A quantitative assessment of myocardial wall velocities can be obtained by tissue Doppler echocardiography (TDE) analysis,3–5 a method that can quantify regional myocardial velocities objectively and detect subtle ...
F, Larrazet +5 more
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Use of Segmental Tissue Doppler Velocity to Quantitate Exercise Echocardiography
Journal of the American Society of Echocardiography, 1999A quantitative technique is required to reduce the subjectivity and improve the reproducibility of stress echocardiography. Tissue Doppler imaging may offer these benefits, but its feasibility with exercise echocardiography (ExE) is undefined. This study sought the determinants of the exercise tissue Doppler velocity (TDV) response and the feasibility ...
Pasquet, A. +4 more
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Right ventricular strain in pulmonary embolism by Doppler tissue echocardiography
Journal of the American Society of Echocardiography, 2004For patients with submassive pulmonary embolism, failure of the right ventricle can often be visualized by 2-dimensional echocardiography. We used strain analysis to demonstrate changes in the regional right ventricular free wall performance during the acute and recovery stages of pulmonary embolism.
Jesper, Kjaergaard +2 more
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Should Patients With Connective Tissue Disease Undergo Exercise Doppler Echocardiography?
Chest, 2010We read with the great interest the recently published article by Kovacs et al 1 (August 2010) indicating that exercise Doppler echocardiography (EDE) can be a useful, noninvasive screening tool to detect an increase in systolic pulmonary artery pressure (PAP) during exercise in patients with connective tissue disease.
Michał Ciurzyński +2 more
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Zeitschrift fur Kardiologie, 1999
Mitral inflow velocity, deceleration time, and isovolumic relaxation time recorded by Doppler echocardiography have been widely used to evaluate left ventricular diastolic function but are affected by age, heart rate, loading conditions, and other factors.
C, Bruch +6 more
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Mitral inflow velocity, deceleration time, and isovolumic relaxation time recorded by Doppler echocardiography have been widely used to evaluate left ventricular diastolic function but are affected by age, heart rate, loading conditions, and other factors.
C, Bruch +6 more
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Journal of the American Society of Echocardiography, 2003
To date there is no direct comparison of transesophageal and transthoracic Doppler tissue data in patients with cardiac malposition. We compared data acquired from both methods in an animal model.We studied 10 15-kg Yorkshire pigs during incremental atrial pacing to modify myocardial responses. Peak isovolumic velocity (IVV) and isovolumic acceleration
Michael M H, Cheung +5 more
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To date there is no direct comparison of transesophageal and transthoracic Doppler tissue data in patients with cardiac malposition. We compared data acquired from both methods in an animal model.We studied 10 15-kg Yorkshire pigs during incremental atrial pacing to modify myocardial responses. Peak isovolumic velocity (IVV) and isovolumic acceleration
Michael M H, Cheung +5 more
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Tissue Doppler Imaging and Strain Echocardiography
2010Doppler principle has been routinely used in echocardiography to provide hemodynamic data to the anatomical information offered by two-dimensional (2D) examination. It measures high-frequency, low-amplitude signals from rapidly moving red blood cells enabling quantification of blood flow velocities.
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[Improved structure identification with tissue Doppler echocardiography].
Herz, 1999Tissue Doppler echocardiography (TDE) has been shown to be of particular value in patients with impaired myocardial function. Recently, the technique was successfully employed to localize the ventricular insertion of accessory atrioventricular pathways.
T, Bartel +5 more
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Journal of the American Society of Echocardiography, 2008
The ratio of mitral inflow early diastolic velocity (E) to annulus velocity (E') might be critical for the assessment of an abnormal filling pressure for patients with myocardial ischemia.We sought to determine whether a quantitative estimation of E/E' provides more reliable information for detecting coronary artery disease during dobutamine stress ...
Eiichi, Hyodo +7 more
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The ratio of mitral inflow early diastolic velocity (E) to annulus velocity (E') might be critical for the assessment of an abnormal filling pressure for patients with myocardial ischemia.We sought to determine whether a quantitative estimation of E/E' provides more reliable information for detecting coronary artery disease during dobutamine stress ...
Eiichi, Hyodo +7 more
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Technological advances: tissue doppler imaging echocardiography.
2008Tissue Doppler imaging is a recently introduced echocardiographic tool for measuring myocardial velocities. In this article the physical principles and different myocardial velocity imaging modalities are discussed. Examples of practical applications and clinical use of this non-invasive imaging technique are provided.
Van De Veire, Nico +2 more
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