Results 51 to 60 of about 247,583 (237)
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022 Background Coronary physiology measurement in serial coronary lesions with multiple stenoses is challenging. Therefore, we evaluated the feasibility of Murray fractal law‐based quantitative flow ratio (μQFR) virtual stenting for guidance of serial ...
Shaofeng Guan +13 more
doaj +1 more source
How much of the intraaortic balloon volume is displaced toward the coronary circulation? [PDF]
, 2010 This is a post-print version of the published article. Copyright @ 2010 The American Association for Thoracic Surgery.This article has been made available through the Brunel Open Access Publishing Fund.Objective: During intraaortic balloon inflation ...
Ashraf W. Khir +28 more
core +2 more sources
Coronary Artery Segmentation in Angiographic Videos Using A 3D-2D CE-Net [PDF]
arXiv, 2020 Coronary angiography is an indispensable assistive technique for cardiac interventional surgery. Segmentation and extraction of blood vessels from coronary angiography videos are very essential prerequisites for physicians to locate, assess and diagnose the plaques and stenosis in blood vessels.
arxiv
Automated Deep Learning Analysis of Angiography Video Sequences for Coronary Artery Disease [PDF]
arXiv, 2021 The evaluation of obstructions (stenosis) in coronary arteries is currently done by a physician's visual assessment of coronary angiography video sequences. It is laborious, and can be susceptible to interobserver variation. Prior studies have attempted to automate this process, but few have demonstrated an integrated suite of algorithms for the end-to-
arxiv
Evaluation of Motion Artifact Metrics for Coronary CT Angiography [PDF]
, 2018 Purpose This study quantified the performance of coronary artery motion artifact metrics relative to human observer ratings. Motion artifact metrics have been used as part of motion correction and best‐phase selection algorithms for Coronary Computed ...
Contijoch +19 more
core +2 more sources
NeCA: 3D Coronary Artery Tree Reconstruction from Two 2D Projections via Neural Implicit Representation [PDF]
Bioengineering 2024, 11(12), 1227Cardiovascular diseases (CVDs) are the most common health threats worldwide. 2D X-ray invasive coronary angiography (ICA) remains the most widely adopted imaging modality for CVD assessment during real-time cardiac interventions. However, it is often difficult for cardiologists to interpret the 3D geometry of coronary vessels based on 2D planes ...
arxiv +1 more source
Two New Stenosis Detection Methods of Coronary Angiograms [PDF]
arXiv, 2021 Coronary angiography is the "gold standard" for diagnosing coronary artery disease (CAD). At present, the methods for detecting and evaluating coronary artery stenosis cannot satisfy the clinical needs, e.g., there is no prior study of detecting stenoses in prespecified vessel segments, which is necessary in clinical practice.
arxiv
Impact of competitive flow on wall shear stress in coronary surgery: computational fluid dynamics of a LIMA-LAD model [PDF]
, 2010 Competitive flow from native coronary vessels is considered a major factor in the failure of coronary bypass grafts. However, the pathophysiological effects are not fully understood.
Haverstaad, Rune +8 more
core +2 more sources
مجله دانشگاه علوم پزشکی بیرجند, 2014 Background and Aim: Malnutrition is a prevalent health problem but an unknown one to which little attention has been paid. This can increase complications, morbidity and mortality of the disease.
Mohsen Foadoddini +3 more
doaj
iScience, 2021 Summary: Blood and lymphatic vessels surrounding the heart develop through orchestrated processes from cells of different origins. In particular, cells around the outflow tract which constitute a primordial transient vasculature, referred to as aortic ...
Kazuaki Maruyama +12 more
doaj