Results 31 to 40 of about 779,727 (355)

Application of machine learning to automated analysis of cerebral edema in large cohorts of ischemic stroke patients [PDF]

open access: yes, 2018
Cerebral edema contributes to neurological deterioration and death after hemispheric stroke but there remains no effective means of preventing or accurately predicting its occurrence. Big data approaches may provide insights into the biologic variability
An, Hongyu   +3 more
core   +3 more sources

Physiological and clinical consequences of relief of right ventricular outflow tract obstruction late after repair of congenital heart defects. [PDF]

open access: yes, 2006
BACKGROUND: Right ventricular outflow tract obstruction (RVOTO) is a common problem after repair of congenital heart disease. Percutaneous pulmonary valve implantation (PPVI) can treat this condition without consequent pulmonary regurgitation or ...
Bonhoeffer, P   +10 more
core   +1 more source

Fração de ejeção e volumes do ventrículo esquerdo medidos com eco 3D e com tomografia ultra-rápida Fracción de eyección y volúmenes del ventrículo izquierdo medidos con eco- 3DTR y con tomografía ultrarrápida Left ventricular ejection fraction and volumes as measured by 3d echocardiography and ultrafast computed tomography

open access: yesArquivos Brasileiros de Cardiologia, 2009
FUNDAMENTO: O ecocardiograma tridimensional em tempo real (ECO 3D) e a tomografia computadorizada ultra-rápida (CT) são dois novos métodos de análise da fração de ejeção e dos volumes do VE.
Marcelo Luiz Campos Vieira   +9 more
doaj   +1 more source

Cardiac exercise imaging using a 3-tesla magnetic resonance-conditional pedal ergometer: Preliminary results in healthy volunteers and patients with known or suspected coronary artery disease

open access: yesCardiology Journal, 2023
BACKGROUND: Cardiac magnetic resonance imaging (CMR) remains underutilized as an exercise imaging modality, mostly because of the limited availability of MR-compatible exercise equipment.
Agnes Mayr   +7 more
doaj   +1 more source

Using the Pulse Contour Method to Measure the Changes in Stroke Volume during a Passive Leg Raising Test

open access: yesSensors, 2018
The pulse contour method is often used with the Windkessel model to measure stroke volume. We used a digital pressure and flow sensors to detect the parameters of the Windkessel model from the pulse waveform. The objective of this study was to assess the
Chun-Hung Su   +3 more
doaj   +1 more source

Stroke volume estimation by thoracocardiography is better when glottis is closed

open access: yes, 2007
Thoracocardiography approach pretends to non-invasively monitor stroke volume by inductive plethysmographic recording of ventricular volume curves by a transducer placed on the chest.
Abdulhay, Enas, Baconnier, Pierre
core   +3 more sources

Importância da área de fibrose na evolução em médio prazo de pacientes submetidos à reconstrução ventricular Importancia del área de fibrosis en la evolución a mediano plazo de pacientes sometidos a reconstrucción ventricular Importance of the area of fibrosis at midterm evolution of patients submitted to ventricular reconstruction

open access: yesArquivos Brasileiros de Cardiologia, 2009
FUNDAMENTO: Embora se reconheça que a cirurgia de reconstrução ventricular (CRV) promova remodelamento reverso, são necessários novos estudos para definir a influência da área de fibrose do ventrículo esquerdo (VE).
Gustavo Calado de Aguiar Ribeiro   +5 more
doaj   +1 more source

The Value of E/e'/Stroke Volume Index in Patients Admitted with Acute Decompensation of Systolic Heart Failure

open access: yesمجله دانشکده پزشکی اصفهان, 2019
Background: Heart failure (HF) is a global pandemic and a serious health issue in elderly population. It is among the leading causes of mortality, which imposes immense economic burden and premature deaths. In the present study we evaluate the value of E
Maryam Shojaeifard   +7 more
doaj   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

Nucleosomes in serum of patients with early cerebral stroke [PDF]

open access: yes, 2006
Background: Nucleosomes are cell death products that are elevated in serum of patients with diseases that are associated with massive cell destruction.
Adams   +22 more
core   +1 more source

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