Results 361 to 370 of about 2,021,559 (378)

Dynamic ventriculography and the role of the ejection fraction

The American Journal of Cardiology, 1975
Cardiac function is best evaluated in two different states since function may be normal at rest and abnormalities may become evident only when a load or stress is applied to the cardiovascular system. Such an intervention is exercise, typically used to provoke changes in the electrocardiogram or phonocardiogram, particularly when these are normal at ...
Peter F. Cohn, Richard Gorlin
openaire   +3 more sources

Automated calculation of gallbladder ejection fraction

European Journal of Nuclear Medicine, 1983
We have developed a computer method which by automatically locating the border of the gallbladder in each image and subtracting a varying location-dependent background corresponding to the gallbladder border overcomes the difficulties associated with quantitating gallbladder contraction.
Alan Greenberg, Abass Alavi, Jack W. London, Harold A. Goldstein   +3 more
openaire   +3 more sources

Prognosis for Patients With Heart Failure With Preserved Ejection Fraction. Is It the Same As Low Ejection Fraction?

Revista Española de Cardiología (English Edition), 2011
Heart failure (HF) is a significant and increasing global public health problem. In the United States, hospital admissions for a principal diagnosis of HF increased from 399 000 in 1979 to 1 093 000 in 2003. 1 The diagnosis of HF continues to be associated with poor quality of life, high morbidity, and high mortality despite contemporary HF management.
openaire   +3 more sources

Is heart failure with midrange ejection fraction similar to preserved ejection fraction? In favor

Revista Clínica Española (English Edition), 2017
Abstract Basing heart failure (HF) classification on the echocardiographic values of left ventricular ejection fraction (LVEF) has been useful in defining two sub-types of HF:HF with reduced LVEF and HF with preserved LVEF. A new category has recently been defined: HF with midrange LVEF (40–49%).
openaire   +2 more sources

Artificial intelligence–enabled electrocardiograms for identification of patients with low ejection fraction: a pragmatic, randomized clinical trial

Nature Network Boston, 2021
Xiaoxi Yao, D. Rushlow, Jonathan W. Inselman, R. McCoy, T. Thacher, E. Behnken, M. Bernard, Steven L. Rosas, Abdulla Akfaly, Artika Misra, Paul E. Molling, Joseph S. Krien, Randy M. Foss, Barbara A. Barry, K. Siontis, S. Kapa, P. Pellikka, F. Lopez‐Jimenez, Z. Attia, N. Shah, P. Friedman, P. Noseworthy   +21 more
semanticscholar   +1 more source

Beyond ejection fraction

Journal of Nuclear Cardiology, 1994
Alon Marmor, Alon Marmor, Diwakar Jain, Diwakar Jain, Barry L. Zaret, Barry L. Zaret   +5 more
openaire   +3 more sources

Gallbladder Ejection Fraction

Journal of the American College of Surgeons, 2018
Bryan K. Richmond, Robert D. Fanelli
openaire   +3 more sources

ESPVR, Ejection Fraction and Heart Failure

Cardiovascular Engineering, 2010
The problem of heart failure with preserved ejection fraction (HFpEF) has recently received much attention. In this study we discuss some relations that connect ejection fraction EF to the parameters describing the end-systolic pressure-volume relation (ESPVR).
openaire   +3 more sources

Pirfenidone in heart failure with preserved ejection fraction: a randomized phase 2 trial

Nature Network Boston, 2021
G. Lewis, S. Dodd, D. Clayton, Emma Bedson, H. Eccleson, E. Schelbert, J. Naish, Beatriz Duran Jimenez, Simon G. Williams, C. Cunnington, F. Ahmed, A. Cooper, Rajavarma Viswesvaraiah, S. Russell, T. McDonagh, P. Williamson, Christopher A. Miller   +16 more
semanticscholar   +1 more source

Evaluation and management of heart failure with preserved ejection fraction

Nature Reviews Cardiology, 2020
B. Borlaug
semanticscholar   +1 more source