Results 41 to 50 of about 810,952 (365)

BeSt-LeS: Benchmarking Stroke Lesion Segmentation using Deep Supervision [PDF]

, 2023
Brain stroke has become a significant burden on global health and thus we need remedies and prevention strategies to overcome this challenge. For this, the immediate identification of stroke and risk stratification is the primary task for clinicians. To aid expert clinicians, automated segmentation models are crucial.
arxiv   +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

Arquivos 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, César H. Nomura, Bernardino Tranchesi Junior, Wercules A. de Oliveira, Gustavo Naccarato, Bruna S. Serpa, Rodrigo B. D. Passos, Marcelo B. G. Funari, Cláudio H. Fischer, Samira S. Morhy   +9 more
doaj   +1 more source

Lower Hemoglobin Correlates with Larger Stroke Volumes in Acute Ischemic Stroke [PDF]

Cerebrovascular Diseases Extra, 2011
<i>Background:</i> Hemoglobin tetramers are the major oxygen-carrying molecules within the blood. We hypothesized that a lower hemoglobin level and its reduced oxygen-carrying capacity would associate with larger infarction in acute ischemic stroke patients. <i>Methods:</i> We studied 135 consecutive patients with acute ischemic
Aneesh B. Singhal, Hakan Ay, E. Murat Arsava, Ona Wu, Ruijun Ji, Mark Vangel, A. Gregory Sorensen, Priya Garg, W. Taylor Kimberly   +8 more
openaire   +4 more sources

Therapeutic potential of the renin angiotensin system in ischaemic stroke [PDF]

, 2016
The renin angiotensin system (RAS) consists of the systemic hormone system, critically involved in regulation and homeostasis of normal physiological functions [i.e.
Arroja, Mariana Moreira Coutinho, McCabe, Christopher, Reid, Emma   +2 more
core   +1 more source

Avaliação ecocardiográfica da terapia de ressincronização cardíaca: dois anos de seguimento Evaluación ecocardiográfica de la terapia de resincronización cardiaca: dos años de seguimiento Echocardiographic assessment of cardiac resynchronization therapy: two-year follow-up period

Arquivos Brasileiros de Cardiologia, 2010
FUNDAMENTO: A terapia de ressincronização cardíaca (TRC) é uma opção efetiva para os pacientes com insuficiência cardíaca (IC) avançada. Critérios clínicos, eletrocardiográficos e ecocardiográficos têm sido estudados na tentativa de selecionar os ...
Viviane Cordeiro Veiga, Salomón Soriano Ordinola Rojas, Fernando Sérgio Oliva de Souza, Reinaldo Wilson Vieira, Amilton Silva Junior, Marcelo Luiz Patrício, Elias César Hauy Marum, Henry Abensur   +7 more
doaj   +1 more source

Hypovolemia explains the reduced stroke volume at altitude [PDF]

Physiological Reports, 2013
During acute altitude exposure tachycardia increases cardiac output (Q) thus preserving systemic O2 delivery. Within days of acclimatization, however, Q normalizes following an unexplained reduction in stroke volume (SV). To investigate whether the altitude-mediated reduction in plasma volume (PV) and hence central blood volume (CBV) is the underlying ...
Stefanie Keiser, Mike Hug, Christoph Siebenmann, Andrea Müller, Carsten Lundby, Johannes J. van Lieshout, Johannes J. van Lieshout, Peter Vestergaard Rasmussen   +7 more
openaire   +3 more sources

Direct angiotensin AT2 receptor stimulation using a novel AT2 receptor agonist, compound 21, evokes neuroprotection in conscious hypertensive rats [PDF]

, 2014
Background: In this study, the neuroprotective effect of a novel nonpeptide AT2R agonist, C21, was examined in a conscious model of stroke to verify a class effect of AT2R agonists as neuroprotective agents.
Alterman, Mathias, Callaway, Jennifer K., Hallberg, Anders, McCarthy, Claudia A., Miller, Alyson A., Vinh, Antony, Widdop, Robert E.   +6 more
core   +2 more sources

Assessment of stroke volume variation

Critical Care, 2006
The specific interactions of the lungs and the cardiovascular system under mechanical ventilation cause cyclic variations of left ventricular stroke volume (SVV). Real-time measurement of SVV using arterial pulse contour analysis is useful to predict volume responsiveness and to monitor volume therapy in mechanically ventilated patients. In this study,
A. De Weger, Jos R. C. Jansen, P. C. M. Van Den Berg, R. B. P. de Wilde   +3 more
openaire   +2 more sources

THE STROKE VOLUME IN JUVENILE BORDERLINE HYPERTENSION

Japanese Circulation Journal, 1975
Hemodynamic changes in supine and upright position and during exercise were studied in 144 men including 37 normal subjects and 107 patients with borderline hypertension. Borderline hypertensives were classified in 4 groups, according to the basal level of heart rate and stroke index. In the first two groups, stroke index was normal, but heart rate was
Safar Me, Y. A. Weiss, London Gm, P.L. Milliez   +3 more
openaire   +4 more sources

Finger extensor variability in TMS parameters among chronic stroke patients [PDF]

, 2005
BACKGROUND: This study determined the reliability of topographic motor cortical maps and MEP characteristics in the extensor digitorum communis (EDC) evoked by single-pulse TMS among patients with chronic stroke. METHODS: Each of ten patients was studied
Butler, Andrew J, Kahn, Shannon, Weiss, Paul, Wolf, Steven L   +3 more
core   +3 more sources