• Doppler ultrasound detects reversal of blood flow in the umbilical artery of the baby without a heart. (connecticutchildrens.org)
  • By using Doppler ultrasound, simultaneous recording of the atrial and ventricular waves can be obtained. (biomedcentral.com)
  • 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)
  • We also use the presence of polyhydramnios (too much amniotic fluid) and elevated fetal cardiac output on fetal echocardiography. (connecticutchildrens.org)
  • 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)
  • Previous studies have proposed fetal Doppler echocardiography screening as an additional screening tool for VSDs [ 13 - 15 ]. (biomedcentral.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)
  • Pediatric and neonatal interventional cardiology of congenital heart defects (CHD), diagnosis and optimal modalities for resolving the most complex CHD, fetal echocardiography, congestive heart failure in children, cardiomyopathy, and congenital heart defects in adults. (pulskardioloskicentar.rs)
  • Transesophageal color flow Doppler and echocardiogra-phic features of normal and regurgitant St. Jude medical prostheses in the mitral valve position. (meduniver.com)
  • Transthoracic echocardiography (TTE), transesophageal echocardiography (TEE), transthoracic Doppler ultrasonography (USCOM), Bioreactance technology-based system (NICOM), Continuous Non-invasive Arterial Pressure (CNAP) have been developed to predict fluid responsiveness. (scirp.org)
  • The transesophageal echocardiography showed a spontaneous right-to-left shunt through a patent foramen ovale. (heraldopenaccess.us)
  • Color flow Doppler evaluation of St. Jude Medical prosthetic valves. (meduniver.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)
  • 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)
  • In 1981, Shabetai proposed a working definition of restrictive cardiomyopathy: "an idiopathic or systemic disease of the ventricular chambers that produces a clinical and hemodynamic picture that strongly simulates constrictive pericarditis. (medscape.com)
  • On cardiac catheterization, the ventricular end-diastolic pressure is elevated, with a dip-and-plateau configuration of the diastolic portion of the ventricular pressure pulse. (medscape.com)
  • MRI, CT, and echocardiography may also demonstrate early termination of left ventricular filling. (medscape.com)
  • Oelberg DA, Marcotte F, Kreisman H, Wolkove N, Langleben D & Small D 1998 Evaluation of right ventricular systolic pressure during incremental exercise by Doppler echocardiography in adults with atrial septal defect. (biomedcentral.com)
  • 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)
  • Patients with chronic mitral obstruction develop signs of tricuspid regurgitation and CHF, such as hepatomegaly, engorged neck veins, large expansile CV waves in the jugular venous pulse, and a systolic murmur that accentuates in inspiration at the lower left sternal border. (medscape.com)
  • INTRODUCTION - The physical examination of the cardiovascular system includes auscultation and palpation of the heart, as well as assessment of the arterial and venous pulses. (medilib.ir)
  • See "Examination of the precordial pulsation" and "Examination of the arterial pulse" and "Examination of the jugular venous pulse" . (medilib.ir)
  • Comparison of transthoracic and transoesophageal echocardiography for detection of abnormalities of prosthetic and bioprosthetic valves in the mitral and aortic positions. (meduniver.com)
  • Doppler echocardiographic assessment with the continuity equation of St. Jude Medical mechanical prostheses in the mitral valve position. (meduniver.com)
  • Continous-wave Doppler echocardiographic measurements of prosthetic valve gradients: A simultaneous Doppler-catheter correlative study. (meduniver.com)
  • Doppler echocardiographic assessment of the St. Jude medical prosthetic valve in the aortic position using the continuity equation. (meduniver.com)
  • 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)
  • The cyclic change of myocardial perfusion was examined by mapping MBF with a steady-pulsed ASL approach. (biomedcentral.com)
  • We sought to divide COVID-19 patients into distinct phenotypical subgroups using echocardiography and clinical markers to elucidate the pathogenesis of the disease and its heterogeneous cardiac involvement. (bvsalud.org)
  • Although including echocardiography improved the predictive power, its marginal contribution over clustering using clinical parameters only does not justify the burden of echocardiography data collection. (bvsalud.org)
  • Subjects and methods: A total of 467 adults without cardiopulmonary disease and normal exercise capacity (age range: 18-85 years) underwent symptom-limited treadmill exercise testing with Doppler measurement of rest and exercise pulmonary artery systolic pressure. (biomedcentral.com)
  • These increases in pulmonary pressure occur in association with decreasing transpulmonary flow and increases in systemic pulse pressure, suggesting that age-associated blood vessel stiffening may contribute to these differences in pulmonary artery systolic pressure. (biomedcentral.com)
  • While meta-analyses have found traditional measures of LV global systolic function at rest to be similar in athletes and controls, 2 , 4 , 5 evidence is not conclusive from studies utilising tissue Doppler imaging (TDI) or speckle tracking to measure global LV or RV systolic function. (bmj.com)
  • In 1980 and 1981, and again in 1985, the NAMCS encounter form included a question which asked for a listing of all drugs/medications ordered, administered or provided during the visit. (cdc.gov)
  • 10. Baumgartner , Khan S, De Robertis , Czer L, Maurer G. Doppler assessment of prosthetic valve orifice area: An in vitro study. (meduniver.com)
  • 21. Chambers J, Monaghan M, Jackson G. Colour flow Doppler mapping in the assessment of prosthetic valve regurgitation. (meduniver.com)
  • 2009 Stress Doppler echocardiography in relatives of patients with idiopathic and familial pulmonary arterial hypertension: results of a multicenter European analysis of pulmonary artery pressure response to exercise and hypoxia. (biomedcentral.com)
  • Himelman RB, Stulbarg M, Kircher B, Lee E, Kee L, Dean NC, Golden J, Wolfe CL & Schiller NB 1989 Noninvasive evaluation of pulmonary artery pressure during exercise by saline-enhanced Doppler echocardiography in chronic pulmonary disease. (biomedcentral.com)
  • Simultaneous in vitro maximum measured and Doppler derived pressure differences across prosthetic heart valves. (meduniver.com)
  • For verification purposes of the obtained valve area using echocardiogram and doppler measures, especially if the obtained valve area is in the range requiring surgery and cardiac output is low, the Gold standard of left heart catheterization for true hemodynamics should be obtained for validation using the Gorlin formula, so patient does not go for unneeded surgery. (wikipedia.org)
  • Diminished cardiac output and poor perfusion lead to a low volume pulse and peripheral cyanosis. (medscape.com)
  • Pulse Cardiology Center is a private health center that provides all cardiac services, diagnostics and treatment in a safe, high-quality environment. (pulskardioloskicentar.rs)
  • The flow through the LVOT, or LV stroke volume (in cm3), can be calculated by measuring the LVOT diameter (in cm), squaring that value, multiplying the value by 0.78540 (which is π/4) giving a cross sectional area of the LVOT (in cm2) and multiplying that value by the LVOT VTI (in cm), measured on the spectral Doppler display using pulsed-wave Doppler. (wikipedia.org)
  • Echocardiography is the primary imaging modality for restrictive cardiomyopathy. (medscape.com)
  • از آن جا که فلوی دیاستولی میترال، که توسط Pulse wave (PW) اندازه گیری می‌شود، محدودیت‌هایی دارد، به تازگی از Tissue doppler imaging (TDI) که یک روش ساده، حساس و ارزان قیمت می‌باشد، برای ارزیابی عملکرد دیاستولی بطن چپ استفاده می‌شود که وابسته به عوامل مخدوش کننده‌ای مثل تعداد ضربان قلب نیست. (ac.ir)
  • 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)
  • A total of 506 consecutive patients hospitalized with COVID-19 infection underwent complete evaluation, including echocardiography, at admission. (bvsalud.org)
  • Physical examination: temperature (T) 36.6 ℃, heart rate (HR) 110 / min, respiratory rate (RR) 35 / min, blood pressure (BP)132 / 92mmHg, pulse oxygen saturation (SpO 2 ) 81% (Oxygen concentration 100%, endotracheal intubation ventilator assisted breathing). (biomedcentral.com)
  • 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)
  • Echocardiography alone is not definitive because the hemodynamic properties of restrictive cardiomyopathy and constrictive pericarditis are similar, and pericardial thickness may be evaluated incompletely. (medscape.com)
  • The most commonly used methods involve measurements taken during echocardiography. (wikipedia.org)
  • While this method directly measures the valve area, the image may be difficult to obtain due to artifacts during echocardiography, and the measurements are dependent on the technician who has to manually trace the perimeter of the open aortic valve. (wikipedia.org)
  • In echocardiography the aortic valve area is calculated using the velocity time integral (VTI) which is the most accurate method and preferred. (wikipedia.org)
  • From these, it is easy to calculate the area (in cm2) of the aortic valve by simply dividing the LV stroke volume (in cm3) by the AV VTI (in cm) measured on the spectral Doppler display using continuous-wave Doppler. (wikipedia.org)
  • 14. Baumgartner H, Schima H, Kuhn P. Effect of prosthetic valve malfunction on the Doppler-catheter gradient relation for bileaflet aortic valve prostheses. (meduniver.com)
  • 15. Baumgartner H, Schirnta H, Kuhn P. Discrepancies between Doppler and Catheter Gradients across Bileaflet aortic valve prostheses. (meduniver.com)
  • In the prospective Autologous Stem Cell Transplantation International Scleroderma (ASTIS) trial, a phase 3 comparison of autologous HSCT with 12 successive monthly intravenous pulses of cyclophosphamide in 156 patients with early diffuse cutaneous systemic sclerosis, HCST was associated with higher treatment-related mortality than in the first year after treatment. (medscape.com)
  • M1 precedes the upstroke of the carotid pulse because it occurs before LV ejection begins. (medilib.ir)
  • In rare cases, this condition may be detected as an incidental finding in asymptomatic patients undergoing echocardiography for some unrelated reason. (medscape.com)
  • Uncalibrated pulse wave analysis with the Pressure Recording Analytical Method (PRAM) may be suitable to measure CO in patients with vvECMO therapy. (bvsalud.org)
  • A computerized physiologic pulse duplicator for in-vitro hydrodynamic and ultrasonic studies of prosthetic heart valves. (meduniver.com)
  • Additionally, several echocardiography variables (E' lat, E' sept, E/e average) showed high discriminative power among the clusters. (bvsalud.org)
  • 1981- He enrolled in the 1974/75 at the Faculty of Medicine in Belgrade and ended in February 1981 with an average grade of 9.57. (pulskardioloskicentar.rs)
  • 12. Baumgartner H. Khan S, DeRobertis M, Czer L, Maurer G. Discrepancies between Doppler and catheter gradients in aortic posthetic valves in vitro: A manifestation of localized gradients and pressure recovery. (meduniver.com)
  • They were experts with international reputations in echocardiography and environmental or cardiovascular epidemiology. (cdc.gov)