Results 31 to 40 of about 7,318 (202)
A Novel Sample-efficient Deep Reinforcement Learning with Episodic Policy Transfer for PID-Based Control in Cardiac Catheterization Robots [PDF]
arXiv, 2021 Robotic catheterization is typically used for percutaneous coronary intervention procedures nowadays and it involves steering flexible endovascular tools to open up occlusion in the coronaries. In this study, a sample-efficient deep reinforcement learning with episodic policy transfer is, for the first time, used for motion control during robotic ...
arxiv
Revista Brasileira de Terapia Intensiva, 2009 O cateter de artéria pulmonar é frequentemente usado na monitorização de pacientes durante o transplante hepático. O advento de métodos menos invasivos para estimar o débito cardíaco e a pressão de oclusão da artéria pulmonar, aliado ao fracasso de ...
Marcos Coutinho Schechter +4 more
doaj +1 more source
Revista Latino-Americana de Enfermagem, 2006 The objective of this study was to identify, by using the Theory of Reasoned Action/Theory of Planned Behavior, the attitude and normative beliefs that influence the behavioral intention of the nurse to perform a hemodynamic assessment using the ...
Cristiano José Mendes Pinto +2 more
doaj +1 more source
ESC Heart Failure, 2023 Aims Impaired myocardial energy homeostasis plays an import role in the pathophysiology of heart failure with preserved ejection fraction (HFpEF). Left ventricular relaxation has a high energy demand, and left ventricular diastolic dysfunction has been ...
Arno A. van deBovenkamp +10 more
doaj +1 more source
CathSim: An Open-source Simulator for Endovascular Intervention [PDF]
arXiv, 2022 Autonomous robots in endovascular operations have the potential to navigate circulatory systems safely and reliably while decreasing the susceptibility to human errors. However, there are numerous challenges involved with the process of training such robots, such as long training duration and safety issues arising from the interaction between the ...
arxiv
Causal Interaction Trees: Tree-Based Subgroup Identification for Observational Data [PDF]
, 2020 We propose Causal Interaction Trees for identifying subgroups of participants that have enhanced treatment effects using observational data. We extend the Classification and Regression Tree algorithm by using splitting criteria that focus on maximizing between-group treatment effect heterogeneity based on subgroup-specific treatment effect estimators ...
arxiv +1 more source
PULMONARY ARTERY PSEUDOANEURYSM: A RARE VASCULAR LESION AFTER RIGHT HEART CATHETERIZATION
Angiologia e Cirurgia Vascular, 2017 Pulmonary artery pseudoaneurysms may be caused by infection, trauma, neoplasm or iatrogenic lesions, such as pulmonary artery rupture during right heart artery catheterization.
André Gomes, Paula Campos
doaj +1 more source
Acta Cirúrgica Brasileira, 2008 PURPOSE: To compare the hemodynamic repercussions following a toxic dose of levobupivacaine and bupivacaine intravascularly injected in swines. Methods: Large White pigs were anesthetized with thiopental, tracheal intubation was performed and mechanical ...
Artur Udelsmann +5 more
doaj +1 more source
Ventriculoventricular delay optimization of a cardiac resynchronization device
Journal of Arrhythmia, 2014 Cardiac resynchronization therapy (CRT) has become a standard option for patients with severe low cardiac function and mild to severe heart failure.
Koichi Sagara, MD
doaj +1 more source
Exploration of Surgeons' Natural Skills for Robotic Catheterization [PDF]
arXiv, 2020 Despite having the robotic catheter systems which have recently emerged as safe way of performing cardiovascular interventions, a number of important challenges are yet to be investigated. One of them is exploration of surgeons' natural skills during vascular catheterization with robotic systems.
arxiv