• Doppler echocardiographic (Echo) measurements of the mitral and pulmonary venous flow have been used to assess diastolic dysfunction (DD). (biomedcentral.com)
  • In the fields of cardiology and medical imaging, speckle tracking echocardiography (STE) is an echocardiographic imaging technique. (wikipedia.org)
  • Although the presence of aortic stenosis is readily diagnosed with 2D echocardiography, the severity of aortic stenosis cannot be judged based on the 2D echocardiographic images alone. (medscape.com)
  • This study examines the temporal relationship between changes in Doppler echocardiographic indexes of diastolic function and sequential endomyocardial biopsies to identify possible factors accounting for false-positive and false-negative results. (northwestern.edu)
  • A total of 114 Doppler echocardiographic studies and biopsies were performed weekly in 39 patients aged 14 to 59 years during the initial 3 months after heart transplantation. (northwestern.edu)
  • To date, all studies evaluating Tissue Doppler in BVP were performed retrospectively and no prospective studies with patient selection for BVP according to echocardiographic criteria of asynchrony were published yet. (biomedcentral.com)
  • Color Doppler echocardiographic assessment of atrial septal defect size: correlation with surgical measurement. (ama.ba)
  • REVIEW published: 29 October 2021 doi: 10.3389/fcvm.2021.723542 Doppler Echocardiography Assessment of Coronary Microvascular Function in Patients With Angina and No Obstructive Coronary Artery Disease Jakob Schroder* and Eva Prescott Department of Cardiology, Bispebjerg Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark Edited by: Echocardiographic evaluation is an essential part of the diagnostic work-up in Tim van de Hoef, Academic Medical patients with known or suspected cardiovascular disease. (readkong.com)
  • A standard fetal echocardiographic evaluation, including two-dimensional gray-scale imaging and color and Doppler color flow mapping, was performed on all fetuses. (biomedcentral.com)
  • Our goal was to evaluate the correlation between known prognostic markers and standard, as well as advanced echocardiographic parameters, including Tissue Doppler (TDI), strain imaging and three-dimensional (3D) echocardiography. (clinmedjournals.org)
  • Rich JD, Shah SJ, Swamy RS, Kamp A, Rich S. Inaccuracy of Doppler echocardiographic estimates of pulmonary artery pressures in patients with pulmonary hypertension: implications for clinical practice. (coreultrasound.com)
  • A comprehensive and tailored Doppler echocardiographic evaluation may be required in patients with heart failure to assist with Biv pacemaker optimization. (thoracickey.com)
  • Comprehensive echocardiographically guided Biv pacemaker optimization produces significant improvement in Doppler echocardiographic hemodynamics, a reduction in S 3 intensity, and an improvement in functional class in patients after cardiac resynchronization therapy. (thoracickey.com)
  • Color Doppler valve analysis during transesophageal echocardiography (TEE) can be used to accurately diagnose bicuspid aortic valve in patients with severe symptomatic aortic stenosis, according to a prospective study of 51 patients. (medscape.com)
  • Mazic U, Gavora P, Masura J. The role of transesophageal echocardiography in transcatheter closure of secundum atrial septal defects by the Amplatzer septal occluder. (ama.ba)
  • Measurement of atrial septal defect size: a comparative study between three-dimensional transesophageal echocardiography and the standard balloon sizing methods. (ama.ba)
  • The accuracy of noninvasive cardiac output (CO) measurement techniques, such as electrical bioimpedance (BIO), suprasternal continuous-wave Doppler (CWD), pulsed-wave Doppler (PWD), and transesophageal continuous-wave Doppler (TED) ultrasound has been variably judged in recent years. (nih.gov)
  • Fetal echocardiography, Doppler ultrasound, and biometry were used to evaluate 2,661 singleton fetuses (1,381 male fetuses and 1,280 female fetuses) between 1 August 2006 and 31 May 2010. (biomedcentral.com)
  • The efficacy of each fetal biometry, Doppler ultrasound, and nasal bone length (NBL) measurement was evaluated in all of the fetuses. (biomedcentral.com)
  • The study participants were 2,661 women with singleton pregnancies who underwent a fetal level II prenatal ultrasound examination, including detailed fetal echocardiography, in one teaching hospital and three obstetric clinics in Taipei, Taiwan between August 2006 and May 2010. (biomedcentral.com)
  • Doppler ultrasound detects reversal of blood flow in the umbilical artery of the baby without a heart. (connecticutchildrens.org)
  • All patients underwent fetal echocardiography, ultrasound evaluation, a magnetic resonance of the fetal brain, and genetic counseling. (uniroma1.it)
  • Patients were examined by color Doppler ultrasound of the penile blood supply before and after intracavernous injection of 10 μg PGE5. (biomedcentral.com)
  • Of 12 false-positive Doppler studies, moderate rejection developed in 7 (58%) patients within 28 days, one patient died of progressive graft failure, and four (25%) had spontaneous improvement of diastolic function. (northwestern.edu)
  • Doppler echocardiography with systolic and diastolic function evaluation was performed using ALOKA 5000 machine. (viamedica.pl)
  • Measures of systolic and diastolic function and speckle-tracking echocardiography-derived cardiac strain were reviewed independently by two central readers. (thoracickey.com)
  • Myocardial velocities assessed by Doppler tissue echocardiography are useful in differentiating patients with normal from those with abnormal diastolic function. (elsevierpure.com)
  • To assess the correlation of Ve-CMR with Echo in assessing mitral inflow E/A ratio, left atrial (LA) size, and pulmonary vein (PV) flow. (biomedcentral.com)
  • There was significant correlation between left atrial size and E/A ratio. (biomedcentral.com)
  • Marx GR, Sherwood MC, Fleishman C, Van Praagh R. Three-dimensional echocardiography of the atrial septum. (ama.ba)
  • Objective: To evaluate RV function in PE using tissue-Doppler echocardiography, in addition to atrial natriuretic peptide (BNP). (ox.ac.uk)
  • abstract = "We studied the correlation of atrial natriuretic factor (ANF) with lung compliance in a series of 16 premature infants with respiratory distress syndrome (RDS). (elsevierpure.com)
  • Analyze This Image: Hemodynamics Challenge Is there enough information from these echocardiography images to estimate the left atrial pressure? (medscape.com)
  • Methods: We studied 258 subjects (175 females, age 61 ± 11 years) with normal left ventricular (LV) systolic function who underwent supine bicycle stress echocardiography and arterial tonometry simultaneously at rest and at peak exercise. (ewha.ac.kr)
  • Ve-CMR has a very high correlation with Echo in the assessment of mitral inflow E/A ratio and LA size. (biomedcentral.com)
  • 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)
  • 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)
  • Association with symptoms and prognosis, Doppler Echocardiography comparison with alternative invasive and non-invasive imaging modalities, and possible Assessment of Coronary Microvascular Function in Patients interventions in angina patients with low CFVR were discussed, and key research With Angina and No Obstructive questions were proposed. (readkong.com)
  • Assessment of the severity of valvular regurgitation (effective regurgitant orifice area) has not been implemented in clinical practice but can be made by Doppler echocardiography. (nih.gov)
  • Calculation of effective regurgitant orifice area is a noninvasive Doppler development of an old hemodynamic concept, allowing assessment of the lesion severity of valvular regurgitation. (nih.gov)
  • Background: Assessment of the right ventricular (RV) function by echocardiography in patients with pulmonary thromboembolism (PE) is complex and frequently qualitative. (ox.ac.uk)
  • Tissue Doppler has been used for the semiquantitative assessment of this chamber, although with some limitations. (ox.ac.uk)
  • A sampling of his research work shows - 1973 angiomorphic correlation, 1974 pulmonic valve motion assessment, 1977 mitral valve prolapse, 1984 pulmonary and aortic assessment. (mcobajm.org)
  • Moreover, it can be easily integrated into a routine echocardiography assessment. (biomedcentral.com)
  • The objective of this study was to determine the utility of Doppler tissue echocardiography in the evaluation of diastolic filling and in discriminating between normal subjects and those with various stages of diastolic dysfunction. (elsevierpure.com)
  • Objective -To analyze velocities of the annulus of the left atrioventricular valve and left ventricular free wall (LVFW) in a large population of healthy cats by use of 2-dimensional color tissue Doppler imaging (TDI). (avma.org)
  • Our own preliminary results show the usefulness of Tissue Doppler Imaging and Tissue Synchronization Imaging to document acute and sustained improvement after BVP. (biomedcentral.com)
  • although tissue- Doppler imaging adequately confirms the presence of RV dysfunction, it has a limited sensitivity for this diagnosis. (ox.ac.uk)
  • For instance, because it is less likely to be affected by cardiac preload and afterload, tissue Doppler imaging can measure cardiac function more accurately, objectively, and quantitatively (8). (balkanmedicaljournal.org)
  • We sought to determine if tissue Doppler imaging (TDI) by echocardiography could predict an optimal phase for multidetector computed tomography and be used to guide TCM. (elsevierpure.com)
  • Speckle tracking is one of two methods for Strain rate imaging, the other being Tissue Doppler. (wikipedia.org)
  • Amongst the several principles, techniques and devices that have been proposed to measure arterial stiffness in humans, Doppler echocardiography is one of the cheapest, fast, widely available and reliable methods to assess aortic stiffness. (biomedcentral.com)
  • The correlation and improvement in cardiac hemodynamics were analyzed between the methods. (thoracickey.com)
  • Unlike tissue Doppler, this velocity field in not limited to the beam direction. (wikipedia.org)
  • Using the modified Bernoulli equation, a maximum instantaneous and mean aortic valve gradient can be derived from the continuous-wave Doppler velocity across the aortic valve. (medscape.com)
  • The major limitation of Doppler echocardiography in assessing the severity of aortic stenosis is underestimation of the gradient if the sound beam is not parallel to the aortic stenosis velocity jet. (medscape.com)
  • Onset of restrictive physiology, defined as 15% decrease in either isovolumic relaxation time or pressure half-time, was determined by analysis of the Doppler mitral flow velocity curve. (northwestern.edu)
  • compared carotid-femoral pulse wave velocity and baPWV in 2287 patients and found a strong correlation between them [ 6 ]. (medsci.org)
  • Effective regurgitant orifice area was calculated by Doppler echocardiography as the ratio of regurgitant volume/regurgitant jet time-velocity integral and compared with color flow Doppler mapping, angiography, surgical classification, regurgitant fraction and variables of volume overload. (nih.gov)
  • Pulmonary hypertension can be diagnosed by measuring the peak TR jet velocity (placing the continuous wave doppler as in the diagram above) and looking at IVC diameter / respiratory-phasic changes. (coreultrasound.com)
  • This algorithm is based on LVOT velocity-time integral measurement, giving a more functional perspective to the use of echocardiography in the critical care setting. (springeropen.com)
  • Advocated Doppler parameters include the aortic velocity-time integral (VTI), diastolic mitral inflow pattern, Doppler tissue imaging, and Doppler-derived dP/dt. (thoracickey.com)
  • three-dimensional (3D) echocardiography is useful in determining the causes and severity of aortic regurgitation, as well as in making decisions regarding management strategy. (medscape.com)
  • [ 20 ] Two-dimensional and Doppler echocardiography is the imaging modality of choice to diagnose and determine the severity of aortic stenosis. (medscape.com)
  • Doppler echocardiography is an excellent tool for assessing the severity of aortic stenosis. (medscape.com)
  • In a laboratory with experienced personnel, Doppler-derived aortic valve gradients are accurate and reproducible and correlate well with those obtained during cardiac catheterization. (medscape.com)
  • To overcome this problem, 2D Doppler echocardiography can also provide a reliable estimation of aortic valve area (AVA). (medscape.com)
  • Thus, in a patient with clinical features of severe aortic stenosis but echo/Doppler findings of mild to moderate aortic stenosis, further evaluation with repeat Doppler or cardiac catheterization may be required. (medscape.com)
  • Left Ventricular Contraction Pattern in Chronic Aortic Regurgitation and Preserved Ejection Fraction: Simultaneous Stress-Strain Analysis by Three-Dimensional Echocardiography. (uib.no)
  • Quantification of aortic regurgitation using high-pulse repetition frequency three-dimensional colour Doppler. (uib.no)
  • AoSI was evaluated by Doppler echocardiography at the level of the aortic root, using a two-dimensional guided M-mode evaluation. (biomedcentral.com)
  • Doppler echocardiography of mitral inflow or aortic outflow or both has been validated and advocated to guide biventricular (Biv) pacemaker optimization. (thoracickey.com)
  • Conducting Doppler assessments of fetal arterial blood flow might increase the rate of identification of fetuses at risk of CHD. (biomedcentral.com)
  • In this study, we investigated fetal variations in VSDs using fetal arterial Doppler assessments to establish the risk of fetal VSDs in the general population. (biomedcentral.com)
  • In addition, DTc which measured both at rest and at peak exercise demonstrated significant positive correlations with PWV, suggesting association of prolonged DTc with arterial stiffening (P = 0.023 and P = 0.005). (ewha.ac.kr)
  • Farber HW, Foreman AJ, Miller DP, McGoon MD. REVEAL Registry: correlation of right heart catheterization and echocardiography in patients with pulmonary arterial hypertension. (coreultrasound.com)
  • The cut-off point of s' for RV dysfunction was 10.8 cm/s (specificity = 85%, sensitivity = 54%), with moderate correlation between BNP and s' wave (r = -0.39). (ox.ac.uk)
  • Semiautomated biventricular segmentation in three-dimensional echocardiography by coupled deformable surfaces. (uib.no)
  • The purpose of this study was to assess the feasibility and reproducibility of noninvasive echocardiography-based functional cardiac measures in a multicenter cohort of participants with MD and determine which measures can detect early subclinical changes in myocardial function. (thoracickey.com)
  • Focusing on participants with DMD ( n = 33), significantly increased mitral A-wave velocities, lower E/A ratios, and lower Doppler tissue imaging mitral lateral E′ velocities were observed compared with age-matched control subjects. (thoracickey.com)
  • TTDE CFVR is free from ionizing radiation Catholic University of the Sacred and widely available, utilizing high-frequency transducers, pharmacologic vasodilator Heart, Italy stress, and pulsed-wave Doppler quantification of diastolic peak flow velocities. (readkong.com)
  • The discriminating power of each of the standard Doppler indexes of left ventricular filling, pulmonary venous flow, and myocardial velocities was determined with the use of Spearman rank correlation and analysis of variance F statistics. (elsevierpure.com)
  • Positive Doppler echocardiograms were associated with concurrent rejection in 80% of patients on biopsy. (northwestern.edu)
  • ATF patients suffer from a non-homogenous heart rate, and the shape of the Doppler signal obtained from them differs from beat to beat. (mssm.edu)
  • The aims of this study were to evaluate the use of comprehensive Doppler echocardiography as a guide during Biv pacemaker optimization in patients after cardiac resynchronization therapy and to evaluate the feasibility of S 3 intensity to be a cost-efficient parameter for Biv pacemaker optimization compared with Doppler echocardiography. (thoracickey.com)
  • The purpose of this study was to evaluate the efficacy of prenatal ultrasonography and Doppler sonography in detecting isolated ventricular septal defects (VSDs) in a late-second-trimester population. (biomedcentral.com)
  • Diagnostic guidelines for initial imaging for fibromuscular dysplasia are available from the American College of Radiology (ACR) and note that CT angiography (CTA) with IV contrast, magnetic resonance angiography with and without IV contrast, and arteriography are usually appropriate for initial imaging, and duplex Doppler ultrasonography and intravascular ultrasonography may be appropriate. (medscape.com)
  • Rock-Willoughby J, Bruhl S, Sheikh M, Khouri S. Right Ventricular Diastolic Parameters Changes and Correlation with Severity of Pulmonary Pressure. (utoledo.edu)
  • Because of its extensive experience, the echocardiography "core" laboratory at Mayo Clinic, directed by Dr. Jae K. Oh, was selected to review the echocardiograms. (cdc.gov)
  • Shortening fraction had a greater interobserver correlation (intraclass correlation coefficient [ICC] = 0.63) compared with ejection fraction (ICC = 0.49). (thoracickey.com)
  • This place was in Trevor's words "one of the hotbeds of Echocardiography" a diagnostic tool which, as well as being painless, yielded a plethora of vital information. (mcobajm.org)
  • Experimental results show a strong correlation between the automatically extracted parameters and parameters acquired manually by an Echo technician. (mssm.edu)
  • Significant correlation coefficients (range: [0.70, 0.98], average: 0.89) and small standard errors of the estimate (range: [0.9, 6.3] mmHg, average: 2.4 mmHg) were found between our EIT-derived systolic PAP and reference systolic PAP values obtained by Doppler echocardiography. (csem.ch)
  • A significant correlation has been found between a reduced head circumference (HC) and the presence of brain injury at MRI (p = 0.003). (uniroma1.it)
  • In addition, regurgitant fraction (RF) can be estimated by Doppler examination of the left subclavian artery (LSA-Doppler). (medscape.com)
  • All Doppler examinations were within 24 hours of biopsy and were analyzed in a blinded fashion. (northwestern.edu)
  • Validation of a holographic display for quantification of mitral annular dynamics by three-dimensional echocardiography. (uib.no)
  • Spearman rank analysis was used to determine the correlation between plasma histone H4 and other parameters. (balkanmedicaljournal.org)
  • This and the fact that the compliance is also age-related, prevented any straightforward correlation of the pressure to the volume [ 4 ]. (biomedcentral.com)
  • Speckle tracking has been shown to be comparable to tissue Doppler derived strain, and has been validated against MR. Strain is defined as the fractional or percentage change in an objects dimension in comparison to the object's original dimension. (wikipedia.org)