• Two-dimensional speckle-tracking echocardiography (2D STE) was showed a promising method in measuring LA physic deformation. (researchsquare.com)
  • Therefore, we assessed LA phasic strain with two-dimensional speckle-tracking echocardiography (2D STE) in a high CVD risk community population to explore the relationship between LA phasic function and LA size to answer two questions: (1) Does the larger LA size means worse function? (researchsquare.com)
  • Myocardial strain imaging uses speckle-tracking echocardiography to measure tissue deformation through the cardiac cycle. (medscape.com)
  • Lu X, Nadvoretskiy V, Bu L, Stolpen A, Ayres N, Pignatelli RH, Kovalchin JP, Grenier M, Klas B, Ge S " Accuracy and reproducibility of real-time three-dimensional echocardiography for assessment of right ventricular volumes and ejection fraction in children. . (bcm.edu)
  • Real-time three-dimensional echocardiography: a novel technique to quantify global left ventricular mechanical dyssynchrony. (meduniver.com)
  • High-resolution transthoracic real-time three-dimensional echocardiography: quantitation of cardiac volumes and function using semiautomatic border detection and comparison with cardiac magnetic resonance imaging. (meduniver.com)
  • Background: With recent developments in echocardiographic technology, a new system using real-time three-dimensional echocardiography (RT3DE) that allows single-beat acquisition of the entire volume of the left ventricle and incorporates algorithms for automated border detection has been introduced. (elsevierpure.com)
  • Two-dimensional transthoracic echocardiography (TTE) with Doppler analysis should be used as an initial screening measure to estimate the pulmonary artery pressure and assess ventricular function. (medscape.com)
  • Quantification of aortic regurgitation using high-pulse repetition frequency three-dimensional colour Doppler. (uib.no)
  • METHODS--Stroke distances were measured by pulsed Doppler echocardiography at left ventricular outflow and left and right ventricular inflow. (bmj.com)
  • Stapleton GE, Stapleton SL, Martinez A, Ayres NA, Kovalchin JP, Bezold LI, Pignatelli R, Eidem BW " Evaluation of longitudinal ventricular function with tissue Doppler echocardiography in children treated with anthracyclines. . (bcm.edu)
  • 7. De Simone R, Glombitza G, Vahl CF. Albers J, Meinzer HP, Hagl S. Three-dimensional Color Doppler: A Clinical Study in Patients With Mitral Regurgitation. (meduniver.com)
  • Comparison of orifice area by transthoracic three-dimensional Doppler echocardiography versus proximal isovelocity surface area (PISA) method for assessment of mitral regurgitation. (meduniver.com)
  • Taleb M, Khuder S , Khouri S . Meta-analysis of the accuracy of Doppler echocardiography in the hemodynamic assessment of pulmonary hypertension J Cardiac Failure 2010:16 (8, Supplement 1): S11. (utoledo.edu)
  • Taleb M, Khuder S , Khouri S . The diagnostic accuracy of Doppler echocardiography in assessment of pulmonary artery systolic pressure: A meta-analysis. (utoledo.edu)
  • In approximately a third of patients with pulmonary arterial hypertension (PAH), Doppler echocardiography demonstrates right-to-left shunting across a patent foramen ovale. (medscape.com)
  • Left ventricular ejection fraction and volume measurements provide information regarding the prognosis and management of a large proportion of patients suffering from cardiovascular diseases (1-4) and 2D-echo is the most frequently used diagnostic tool (5). (escardio.org)
  • It is now feasible to perform a quantitative assessment of left ventricular volume and ejection fraction with accurate results. (escardio.org)
  • Left Ventricular Contraction Pattern in Chronic Aortic Regurgitation and Preserved Ejection Fraction: Simultaneous Stress-Strain Analysis by Three-Dimensional Echocardiography. (uib.no)
  • Assessment of left ventricular diastolic function is useful in risk stratification for patients with cardiovascular disease and can provide a diagnostic clue for heart failure with preserved ejection fraction. (medsci.org)
  • Recent advances in three-dimensional (3D) TTE allow automated detection of endomyocardial borders for accurate assessment of ventricular volumes and ejection fraction. (medscape.com)
  • CMR is considered the gold standard for assessing chamber volumes and LV and right ventricular (RV) ejection fraction. (medscape.com)
  • Rats injected with ISO exhibited severe interstitial cardiac fibrosis and perivascular fibrosis, decreased left ventricular ejection fraction, and increased NOX activity. (dovepress.com)
  • OBJECTIVES: Using three-dimensional (3D) speckle tracking that simultaneously interrogates 3D myocardial deformation and torsion of all LV segments, we tested the hypothesis that LV eccentricity may impair LV 3D systolic radial strain and torsion and has implications on LV ejection fraction in postoperative Fallot patients. (hku.hk)
  • CONCLUSION: Left ventricular eccentricity secondary to right ventricular volume overload may lead to reduction of ejection fraction through impairment of 3D systolic radial strain and torsion in patients after Fallot repair. (hku.hk)
  • The inflow tract dimensions of both ventricles and the outflow tract dimension of the left ventricle were measured from two dimensional images. (bmj.com)
  • Stroke volume was derived as stroke distance multiplied by left ventricular outflow tract area. (bmj.com)
  • Tetralogy of Fallot Tetralogy of Fallot consists of 4 features: a large ventricular septal defect, right ventricular outflow tract obstruction and pulmonic valve stenosis, right ventricular hypertrophy, and over-riding. (msdmanuals.com)
  • in rare cases, however, a large adolescent patient may require transesophageal echocardiography to clearly delineate the left ventricular outflow tract and to detail the valve anatomy. (medscape.com)
  • Secondary calcification of the valve is extremely rare, and at times, the aortic valve anulus may also be underdeveloped or hypoplastic in association with mitral and left ventricular hypoplasia, adding to the severity of left ventricular outflow tract (LVOT) obstruction. (medscape.com)
  • Causes of aortic valve stenosis are multifactorial, although studies suggest a higher rate of recurrence of left ventricular outflow tract obstructive lesions than other forms of congenital heart disease. (medscape.com)
  • 3D-echo methods have been developed to aquire multiple slices of the left ventricle precisely to avoid having to do geometrical assumptions. (escardio.org)
  • The operator needs only to orientate the major axis of the left ventricle and to mark five points in the endocardial surface: the mitral anterior, inferior, lateral and septal annulus and the apex. (escardio.org)
  • Furthermore, the global left ventricular volume can be divided into 17 segments so as to be able to assess the alterations in the regional systolic function of the left ventricle (figure 2). (escardio.org)
  • Left ventricular thrombus is a blood clot (thrombus) in the left ventricle of the heart. (wikipedia.org)
  • Failure to clear cellular debris from the infarct compromises the endothelial lining of the left ventricle and exposes the damaged tissue to the blood. (wikipedia.org)
  • A distinct mass is visible in the left ventricle. (wikipedia.org)
  • Thrombus of the left ventricle resulting in embolism of the spleen Thrombus of the left ventricle resulting in embolism of the spleen Thrombus of the left ventricle resulting in embolism of the spleen Thrombus of the left ventricle resulting in embolism of the spleen After an AMI, people should be treated to prevent LVT formation. (wikipedia.org)
  • Although a supravalvar mitral ring may allow for normal hemodynamic flow from the left atrium to the left ventricle (LV), it often substantially obstructs mitral valve inflow. (medscape.com)
  • Lesions such as transposition of the great arteries, AV discordance, and double outlet right ventricle are occasionally complicated by a supravalvar left AV valvular ring. (medscape.com)
  • Automated Segmentation of the Right Ventricle in 3D Echocardiography: A Kalman Filter State Estimation Approach. (uib.no)
  • Objective -To quantify left ventricle (LV) volumes by use of 1-D, 2-D, and 3-D echocardiography versus MRI in dogs. (avma.org)
  • Significantly lower incidence of left ventricle (LV) free wall rupture was noted between 3rd and 5th day after MI in Hmox1 −/− mice resulting in their better overall survival. (springer.com)
  • The volume of mitral regurgitant flow depends on the size of the regurgitant orifice, and the pressure gradient between the left ventricle and the left atrium. (vin.com)
  • Left atrial pressure is also dependent on myocardial contractility and the compliance of the left ventricle. (vin.com)
  • In this case report, the authors describe a challenging case of assessing AS severity in the setting of bradycardia from complete heart block (CHB), normal left ventricle (LV) function, permanent atrial fibrillation (AF), and moderate AS at baseline. (emedicalacademy.com)
  • Introduction: Acromegalic heart disease is characterized by concentric left ventricular (LV) hypertrophy and impaired LV function. (endocrine-abstracts.org)
  • Pure aortic valve stenosis results in compensatory ventricular hypertrophy over time proportional to the degree of obstruction. (medscape.com)
  • Mild-to-moderate degrees of obstruction are usually well tolerated, with minimal hypertrophy and normal left ventricular function. (medscape.com)
  • Electrocardiographic results are often abnormal in patients with PAH, revealing right atrial enlargement, right axis deviation, right ventricular hypertrophy, and characteristic ST depression and T-wave inversions in the anterior leads. (medscape.com)
  • 25.3 had evidence of left ventricular hypertrophy and 26.5 had various ventricular arrhythmias.Conclusion: Adult Nigerians presenting with hypertension for the first time have significant rhythm and structural abnormalities that should influence their clinical management and drug treatment choice. (bvsalud.org)
  • In nondiabetic patients, a number of factors may be used to stratify the level of risk of coronary disease, including clinical history, resting ventricular function, exercise capacity, the presence and extent of ischemia at single-photon emission-computed tomography (SPECT), or stress echo. (diabetesjournals.org)
  • It is possible to assess whether a thrombus will become an embolus through echocardiography. (wikipedia.org)
  • Two-dimensional guided M-mode echocardiography was used to assess fractional shortening and left ventricular (LV) dimensions at baseline and end point. (eur.nl)
  • However, the application of a simple geometric model to a nonsymmetrical chamber in echocardiography to assess LA enlargement (LAE) is actually indirect and limited. (researchsquare.com)
  • This study is designed to compare left ventricular diastolic function among patients divided by brachial-ankle pulse wave velocity (baPWV) and corrected P wave dispersion (PWDC) and assess whether the combination of baPWV and PWDC can predict LVDD more accurately. (medsci.org)
  • Methods In 46 ATH and 48 CON, echocardiography was used to measure peak longitudinal systolic strain and myocardial velocities in 12 left ventricular (LV) and 2 right ventricular (RV) segments. (bmj.com)
  • Morgan E, Sheikh M, Cooper C , Khouri S. The Prevalence and Predictors of Left Ventricular Systolic Dysfunction in Patients with Renal Artery Stenosis. (utoledo.edu)
  • But to calculate left ventricular volumes, first-generation scanners offer such limited image quality that offline manual tracings of endocardial borders are still needed when using these scanners. (escardio.org)
  • The resulting left ventricular volumes can be visualised from different points of view, and can be quantified. (escardio.org)
  • Use of the Teichholz method resulted in LV volume overestimation, whereas the Simpson method of disk and real-time 3-D echocardiography significantly underestimated LV volumes. (avma.org)
  • As a result, left atrial pressure may be only slightly elevated even in the face of massive regurgitant volumes. (vin.com)
  • Both interobserver and intraobserver variability of three-dimensional measurements of end-systolic and end-diastolic volumes showed excellent agreement. (elsevierpure.com)
  • Role of right and left atrial dimensions for release of atrial natriuretic peptide in left sided valvular heart disease and idiopathic congestive cardiomyopathy. (ksw.ch)
  • The pathology of CHD is characterized by plaque-like deposition of fibrous tissue on valvular cusps, leaflets, papillary muscles, chordae, and ventricular walls. (karger.com)
  • Equally important, the echocardiogram helps to exclude secondary causes of, or contributors to, pulmonary hypertension, such as left-sided heart disease (eg, left ventricular dysfunction, valvular heart disease). (medscape.com)
  • These disturbances of right ventricular filling are likely to compromise overall cardiac function independently of left ventricular disease. (bmj.com)
  • Background The aim of this study was to examine left ventricular (LV) function in untreated, newly diagnosed hypertensive patients with morning blood pressure surge (MBPS) status using three-dimensional (3D) speckle tracking. (koreamed.org)
  • Comparison of three-dimensional echocardiographic assessment of volume, mass, and function in children with functionally single left ventricles with two-dimensional echocardiography and magnetic resonance imaging. (meduniver.com)
  • 3. Buck T, Hunold P, Wentz KU, Tkalec W, Nesser HJ, Erbel R. Tomographic three-dimensional echocardiographic determination of chamber size and systolic function in patients with left ventricular aneurysm: comparison to magnetic resonance imaging, cineventriculography, and two-dimensional echocardiography. (meduniver.com)
  • Left atrial (LA) size is often used as a surrogate marker of LA function in clinical practice, with larger atria thought to represent a "dysfunctioning" atrium, since there is no accepted 'gold' standard to evaluate LA function. (researchsquare.com)
  • AF could lead to the loss of atrial systolic function and ventricular irregular contraction and then promote the decline of cardiac diastolic function. (hindawi.com)
  • Surgical repair or replacement of an aortic valve is primarily reserved for patients in whom balloon valvuloplasty has failed with severe stenosis or have significant valve insufficiency in association with progressive left ventricular dilation or deterioration of left ventricular systolic function (see Treatment and Management). (medscape.com)
  • Severe obstruction in utero may lead to variable degrees of left-sided heart hypoplasia, endomyocardial fibroelastosis, reduced ventricular function, and significant mitral valve insufficiency. (medscape.com)
  • 1] These patients often had well-preserved ventricular function but, during rapid growth, could exhibit fairly dramatic increases in the aortic valve gradient, requiring intervention. (medscape.com)
  • [ 1 , 2 ] Other common associated lesions in patients with supravalvar mitral ring include ventricular septal defect (VSD) , patent ductus arteriosus (PDA) , atrioventricular (AV) canal defect, and tetralogy of Fallot. (medscape.com)
  • Uncommonly associated defects include atrial septal defect , cor triatriatum, left superior vena cava, unroofed coronary sinus, partial anomalous pulmonary venous drainage, pulmonary venous obstruction, double-orifice mitral valve, and Wolff-Parkinson-White syndrome . (medscape.com)
  • A ventricular septal defect (VSD) is an opening in the interventricular septum, causing a shunt between ventricles. (msdmanuals.com)
  • Malalignment type ventricular septal defects are characterized by displacement of the conal or outlet septum. (msdmanuals.com)
  • Chahal M, Bruhl S, Khouri S . Echocardiographic Assessment of Right Ventricular Wall Stress in Pulmonary Hypertension Patients withNormal RV Morphology. (utoledo.edu)
  • Chahal M, Bruhl S, Khouri S . Right ventricular strain patterns in patients with pulmonary hypertension J Am Coll Card 2010:55, a86. (utoledo.edu)
  • 1 , 2 Typically, there is an increase in left ventricular (LV) cavity dimension together with a slightly increased LV wall thickness, in parallel with right ventricular (RV) and atrial enlargement. (bmj.com)
  • Right and left sided atrioventricular (AV) ring excursions were measured by M mode echocardiography at the tricuspid and mitral rings. (bmj.com)
  • CONCLUSIONS--Enlargement of the right ventricular inflow tract in dilated cardiomyopathy, especially to more than 5 cm, is accompanied by a progressive decrease in effective tricuspid orifice area, sometimes to less than 1 cm2 and increased inflow velocities. (bmj.com)
  • Echocardiography: The echocardiogram can estimate right ventricular (RV) systolic pressure and, more importantly, the degree of right ventricular enlargement, as well as the presence of a pericardial effusion. (medscape.com)
  • It analyses 3D-echo datasets by performing a semiautomated left ventricular endocardial surface detection. (escardio.org)
  • When clinically significant, a diastolic pressure difference occurs between the left atrium and the LV. (medscape.com)
  • Bruhl S, Sheikh M, Khouri S . A simple and novel technique for the assessment of right and left ventricular systolic interdependence J Am Soc Echo 2010;23(5):B10. (utoledo.edu)
  • Bruhl S, Sheikh M, Khouri S . Novel technique for the assessment of right and left ventricular systolic interdependence. (utoledo.edu)
  • A larger infarction means a larger area of tissue injury, which may be akinetic or dyskinetic, resulting in stagnation of ventricular blood. (wikipedia.org)
  • The principal utility of CMR and its advantage over echocardiography for cardiomyopathy is its use of late gadolinium enhancement (LGE) , which visualizes myocardial tissue and detects scar, fibrosis, or infiltration. (medscape.com)
  • Non-ischemic cardiomyopathy (NICM) can cause left ventricular dysfunction through interstitial fibrosis, which corresponds to the failure of cardiac tissue remodeling. (nature.com)
  • Comparison of ultrasound vector flow imaging and CFD simulations with PIV measurements of flow in a left ventricular outflow trackt phantom - Implications for clinical use and in silico studies. (uib.no)
  • Provided that these techniques are acceptably reliable, three-dimensional echocardiography may be much more useful for clinical practice. (elsevierpure.com)
  • The book was written by a group of well-recognized international experts in the field, who have not only been involved in the scientific and clinical evolution of 3D echocardiography since its inception but are also intensively involved in expert training courses. (libreriastudium.it)
  • As a result, the clear focus of this book is on the practical application of 3D echocardiography in daily clinical routine with tips and tricks for both beginners and experts, accompanied by more than 150 case examples comprehensively illustrated in more than 800 images and more than 500 videos provided on a DVD. (libreriastudium.it)
  • Rock-Willoughby J, Bruhl S, Sheikh M, Khouri S. Right Ventricular Diastolic Parameters Changes and Correlation with Severity of Pulmonary Pressure. (utoledo.edu)
  • The size of the regurgitant orifice, in turn, depends on the severity of myxomatous changes in the valve and the degree of dilation and distortion of the annulus resulting from left atrial and ventricular enlargement. (vin.com)
  • The primary risk of LVT is the occurrence of cardiac embolism, in which the thrombus detaches from the ventricular wall and travels through the circulation and blocks blood vessels. (wikipedia.org)
  • Two dimensional echocardiography in the diagnosis of left ventricular thrombus. (wikipedia.org)
  • Bruhl S, Wilson L, Taleb M, Khouri S . The Utility of Three-Dimensional Echocardiography with Micro-bubble Contrast in the Assessment of Thrombus in Apical Aneurysms. (utoledo.edu)
  • BACKGROUND: Left ventricular (LV) systolic dysfunction has been shown to be a predictor of adverse outcomes after tetralogy of Fallot repair. (hku.hk)
  • Large defects result in a significant left-to-right shunt and cause dyspnea with feeding and poor growth during infancy. (msdmanuals.com)
  • Freehand three-dimensional echocardiography for measurement of left ventricular mass: in vivo anatomic validation using explanted human hearts. (meduniver.com)
  • Right ventricular relaxation was incoordinate in 28% of the patients studied. (bmj.com)
  • Echocardiography, as one of most important modality in the acute setting, rapidly and widely available, has significant utility in the diagnosis and management, and is also used for risk stratification and prognosis of ACS patients. (hindawi.com)
  • Screening patients by means of baPWV and PWDC might help identify the high risk group of elevated left ventricular filling pressure and LVDD. (medsci.org)
  • The cardiac mortality and morbidity were increased in heart failure patients with left ventricular diastolic dysfunction (LVDD) [ 1 , 2 ]. (medsci.org)
  • A left ventricular assist device (LVAD) is a device to provide mechanical circulatory support for patients unresponsive to heart failure therapy. (jcardcritcare.org)
  • The levels of NT-proBNP and metrics of echocardiography were measured before and after RDN in patients with refractory hypertension and PAF. (hindawi.com)
  • Excluding left-sided heart disease, including diastolic dysfunction, is especially important in these patients because of major treatment implications. (medscape.com)
  • Semiautomated biventricular segmentation in three-dimensional echocardiography by coupled deformable surfaces. (uib.no)
  • Castillo E, Castillo R, Martinez J, Shenoy M, Guerrero T. Four-dimensional deformable image registration using trajectory modeling. (springer.com)
  • Note the flattened interventricular septum due to right ventricular overload. (medscape.com)
  • Although echocardiography has long been the principal imaging modality in this disorder, others including positron emission tomography (PET) and cardiac computed tomography (CT), and to a lesser extent intracardiac echocardiography (ICE), play an increasing role. (emedicalacademy.com)
  • Echocardiography is the mainstay of imaging and demonstrates thickened right heart valves with limited mobility and regurgitation. (karger.com)
  • The intramitral type is also frequently part of the Shone complex, in which multiple levels of left heart obstruction are present, including aortic arch hypoplasia or coarctation, aortic valve stenosis, or subaortic stenosis. (medscape.com)
  • Regression of left ventricular mass one year after aortic valve replacement for pure severe aortic stenosis. (meduniver.com)
  • This stenosis causes mild to severe obstruction of the left ventricular outflow that may be associated with other left heart obstructive lesions, varying degrees of left heart hypoplasia, or extracardiac malformations, including genetic disorders. (medscape.com)
  • Spontaneous development of significant aortic insufficiency in the absence of stenosis is less common and may result in ventricular dilation. (medscape.com)
  • The aim of this study was to evaluate the feasibility and accuracy of left ventricular (LV) volume measurements by RT3DE using the single-beat full-volume capture technique. (elsevierpure.com)
  • Right ventricular filling in dilated cardiomyopathy. (bmj.com)
  • Three-dimensional echocardiography: in vitro and in vivo validation of left ventricular mass and comparison with conventional echocardiographic methods. (meduniver.com)