Results 341 to 350 of about 398,963 (376)

Left Ventricular Geometry and Survival in Patients With Normal Left Ventricular Ejection Fraction

The American Journal of Cardiology, 2006
In hypertensive populations, left ventricular (LV) geometry, which is characterized by hypertrophy, predicts cardiovascular outcome. The left ventricle can also alter its shape by concentric remodeling (CR) in the absence of LV hypertrophy, a feature that is detected by echocardiography. This study assessed the prevalence and prognostic significance of
Milani, R. V., Lavie, C. J., Mehra, M. R., Ventura, H. O., Kurtz, J. D., Messerli, F. H.   +5 more
openaire   +4 more sources

Left atrial ejection fraction is an indicator of left ventricular diastolic function

The International Journal of Cardiovascular Imaging, 2021
Left atrial ejection fraction (LAEF) has been previously shown to accurately distinguish between patients with and without clearly defined left ventricle diastolic dysfunction (LVDD) by ASE/EACVI criteria, but indeterminate cases were excluded. We sought to determine if LAEF could accurately distinguish between normal, indeterminate and LVDD patients ...
J. Almeida, P. Paiva, N. Ribeiro, M. Ferreira, N. António, R. Martins, L. Gonçalves   +6 more
openaire   +3 more sources

Determination of left ventricular volumes and ejection fraction by echocardiography

The American Journal of Cardiology, 1970
In the past few years remarkable advances have been made in accuracy of cardiac diagnosis by external graphic techniques. The latest of these, echocardiography, differs from previous methods in that it penetrates the surface of the chest to provide information regarding movements of ventricular walls, septum and valves.
M.Eugene Sherman, Ernest Craige, William P. Hood, Nicholas J. Fortuin   +3 more
openaire   +2 more sources

Measurement of right and left ventricular ejection fraction in dogs

Clinical Physiology, 1983
Summary. Three techniques for measurement of right (RVEF) and two techniques for left (LVEF) ventricular ejection fraction were evaluated in five dogs. RVEF was measured with a first‐pass radionuclide technique using erythrocytes labelled in vitro with Technetium‐99m methylene disphosphonate (MDP) and compared with RVEF measured with a thermodilution ...
Sven Dorph, I. Brynjolf, Jesper Qvist, Henrik Jordening, T. Mygind, Ole Munck   +5 more
openaire   +3 more sources

Comparison of Left Ventricular Ejection Fraction Calculation Methods

Echocardiography, 1998
Left ventricular ejection fraction (LVEF) has been used for many years to assess left ventricular systolic function. Over time, patients may have LVEF measurements performed with the use of different imaging modalities. It is important for the clinician to appreciate how these different methods compare with each other.
Daniel Wilson, Richard A. Wilson, Neshe North   +2 more
openaire   +3 more sources

Cine MR determination of left ventricular ejection fraction

American Journal of Roentgenology, 1987
Cine MR imaging provides tomographic images of the heart with both high spatial and high temporal resolution. As many as 32 images per cardiac cycle can be acquired with up to four separate anatomic slices and a total imaging time of 128 cardiac cycles.
Ann Shimakawa, Robert M. Califf, J A Heinsimer, Thomas M. Bashore, Gary H. Glover, Robert J. Herfkens, JA Utz, Norbert J. Pelc   +7 more
openaire   +3 more sources

Accuracy of left ventricular ejection fraction using the nuclear stethoscope in left ventricular aneurysm

The American Journal of Cardiology, 1985
Although the nuclear stethoscope, a nonimaging probe, accurately determines left ventricular (LV) ejection fraction (EF), its reliability in patients with LV aneurysm has not been established. Accordingly, LVEF was determined using the nuclear stethoscope and compared with that determined by equilibrium gated blood pool scanning in 29 patients, 1 ...
David M. McCarthy, David M. McCarthy, P.Todd Makler, P.Todd Makler   +3 more
openaire   +3 more sources

Transition of Left Ventricular Ejection Fraction in Heart Failure

2018
Along with a worldwide epidemiological transition and dramatic increase in the elderly population, both the incidence and prevalence of heart failure (HF) are increasing worldwide. This epidemic of HF is characterized by an increase of HF with preserved left ventricular ejection fraction (LVEF) (HFpEF) and a decrease of HF with reduced LVEF (HFrEF). Of
Kotaro Nochioka, Hiroaki Shimokawa, Kanako Tsuji, Yasuhiko Sakata   +3 more
openaire   +3 more sources

The Effect of Right Ventricular Hypertrophy on Left Ventricular Ejection Fraction in Pulmonary Emphysema

Chest, 1997
The development of right ventricular (RV) hypertrophy in emphysema is accompanied by involvement of the left ventricle (LV) and its systolic function. Our objective was to study the relation between RV hypertrophy and LV ejection fraction in emphysema by means of MRI.Ten emphysematous patients (FEV1, 0.99+/-0.32 L; FEV1/vital capacity (VC), 0.32+/-0.11
Vonk Noordegraaf, A., Marcus, J. T., Roseboom, B., Postmus, P. E., Faes, T. J., de Vries, P. M.   +5 more
openaire   +4 more sources

Dilated cardiomyopathy with re-worsening left ventricular ejection fraction

Heart and Vessels, 2018
Re-worsening left ventricular ejection fraction (LVEF) is observed in some patients with dilated cardiomyopathy (DCM) despite initial improvements in LVEF. We analyzed cardiac outcomes and clinical variables associated with this re-worsening LVEF.
Takeru Nabeta, Takayuki Inomata, Shunsuke Ishii, Mayu Yazaki, Teppei Fujita, Yuichiro Iida, Yuki Ikeda, Emi Maekawa, Takashi Naruke, Toshimi Koitabashi, Junya Ako   +10 more
openaire   +3 more sources