Results 41 to 50 of about 112,818 (361)
Journal of Clinical Ultrasound, Volume 51, Issue 1, Page 5-15, January 2023., 2023 Exercise intolerance is a common complication in long‐term survivors of allogeneic hematopoietic stem‐cell transplantation. In this study, we found reduced oxygen uptake (VO2peak) by cardio‐pulmonary exercise tests to be associated with left ventricular systolic dysfunction by echocardiography.
Richard John Massey +8 more
wiley +1 more source
Indian Heart Journal, 2014 62-Year-old female presented with progressive dyspnea NYHA class III for six months. Echocardiography showed normal left ventricular (LV) systolic function, mild biatrial enlargement, an L wave in pulse wave Doppler at mitral inflow and in M mode ...
Vipin Kumar, John Jose, V. Jacob Jose
doaj +1 more source
Echocardiographic Measurement of Systolic Time Intervals in Healthy Great Dane Dogs [PDF]
Iranian Journal of Veterinary Surgery, 2008 Objective- To determine the range of systolic times intervals using Pulsed-wave Doppler and m-mode echocardiography in normal, healthy Great Dane dogs. Design- Descriptive study. Animals- Thirty healthy Great Dane dogs. Procedures- This study examined 30
Masoud Rajabioun +5 more
doaj
Quantitative Doppler echocardiography [PDF]
BJA Education, 2016 ### Key points Echocardiography provides information regarding volumes [e.g. stroke volume (SV), ejection fraction], flows [e.g. cardiac output (CO), shunt fractions], and pressures (e.g. gradients across valves). As the only directly measurable variables are length (using 2D imaging) and velocity (using spectral Doppler), quantitative haemodynamic ...
L Kuppurao, Paul Harris
openaire +2 more sources
Comparison of 2D and 4D Flow MRI in Neonates Without General Anesthesia
Journal of Magnetic Resonance Imaging, Volume 57, Issue 1, Page 71-82, January 2023., 2023 Background Neonates with critical congenital heart disease require early intervention. Four‐dimensional (4D) flow may facilitate surgical planning and improve outcome, but accuracy and precision in neonates are unknown. Purpose To 1) validate two‐dimensional (2D) and 4D flow MRI in a phantom and investigate the effect of spatial and temporal resolution;
Pia Sjöberg +7 more
wiley +1 more source
IEEE Journal of Translational Engineering in Health and Medicine, 2018 There is a great need for training in pediatric echocardiography. In addition to physicians being trained in pediatric cardiology and echocardiography technologists, neonatologist, pediatric intensivists, and other health care professionals may be ...
Bijan Siassi +5 more
doaj +1 more source
Machine Learning based Extraction of Boundary Conditions from Doppler Echo Images for Patient Specific Coarctation of the Aorta: Computational Fluid Dynamics Study [PDF]
arXiv, 2022 Purpose- Coarctation of the Aorta (CoA) patient-specific computational fluid dynamics (CFD) studies in resource constrained settings are limited by the available imaging modalities for geometry and velocity data acquisition. Doppler echocardiography has been seen as a suitable velocity acquisition modality due to its higher availability and safety ...
arxiv
Arquivos Brasileiros de Cardiologia, 2000 OBJECTIVE: To assess by Doppler echocardiography the structural and functional alterations of rat heart with surgical induced extensive myocardial infarction.
Valdir A. Moisés +7 more
doaj +1 more source
A unified framework combining coherent compounding, harmonic imaging and angular coherence for simultaneous high-quality B-mode and tissue Doppler in ultrafast echocardiography [PDF]
arXiv, 2023 Various methods have been proposed to enhance image quality in ultrafast ultrasound. Coherent compounding can improve image quality using multiple steered diverging transmits when motion occurring between transmits is corrected for. Harmonic imaging, a standard technique in conventional focused echocardiography, has been adapted for ultrafast imaging ...
arxiv
Raised Prosthetic Valve Gradients: What Should be the Approach?
Journal of the Indian Academy of Echocardiography & Cardiovascular Imaging, 2019 The introduction of valve replacement surgery has dramatically improved the outcome of patients with valvular heart disease. Echocardiography plays an important role to determine the outcome of the surgery and follow up of these patients with prosthetic ...
Debika Chatterjee
doaj +1 more source