The CNN-based Coronary Occlusion Site Localization with Effective Preprocessing Method [PDF]
, 2019 The Coronary Artery Occlusion (CAO) acutely comes to human, and it highly threats the human's life. When CAO detected, Percutaneous Coronary Intervention (PCI) should be conducted timely. Before PCI, localizing the CAO is needed firstly, because the heart is covered with various arteries.
arxiv +1 more source
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
Takayasu's arteritis in children : a review [PDF]
, 2001 Takayasu's arteritis is an inflammatory disease of unknown origin involving aorta, its primary branches and pulmonary artery. This article briefly reviews the pathology, clinical features and treatment of Takayasu's arteritis, focusing mainly on the ...
Kothari, Shyam S.
core +1 more source
Usefulness of quantitative and qualitative angiographic lesion morphology, and clinical characteristics in predicting major adverse cardiac events during and after native coronary balloon angioplasty [PDF]
, 1993 Major, adverse cardiac events (death, myocardial infarction, bypass surgery and reintervention) occur in 4 to 7% of all patients undergoing coronary balloon angioplasty. Prospectively collected clinical data, and angiographic quantitative and qualitative
Balcon, R. (Rafael) +13 more
core +1 more source
Health Services Research, EarlyView.ABSTRACT Objective This study aimed to measure the changes in rural hospital bypass for 11 common elective surgeries following the implementation of the Pennsylvania Rural Health Model (PARHM), a global budget payment model. Study Setting and Design We leveraged a natural experiment arising from the phase‐in of PHARM in Pennsylvania.
Donald S. Bourne +6 more
wiley +1 more source
Is Restenosis/Reocclusion after Femoropopliteal Percutaneous Transluminal Angioplasty (PTA) the Consequence of Reduced Blood Flow, Inflammation, and/or Hemostasis Disturbances? [PDF]
, 2015 Percutaneous transluminal angioplasty (PTA) is an established method for treatment of peripheral artery disease (PAD) of the femoropopliteal artery. However, in up to 50% of patients restenosis and/or reocclusion remain a frequent complication occurring ...
Blinc, Aleš +4 more
core +1 more source
Zingiber officinale Roscoe reduces chest pain on patients undergoing coronary angioplasty: A clinical trial [PDF]
Journal of HerbMed Pharmacology, 2019 Introduction: Evidence from animal studies suggests that Zingiber officinale (ginger) may help prevent ischemia–reperfusion injury (IRI) in heart.
Afshin Hasanvand +3 more
doaj +1 more source
3D Fusion between Fluoroscopy Angiograms and SPECT Myocardial Perfusion Images to Guide Percutaneous Coronary Intervention [PDF]
arXiv, 2020 Background. Percutaneous coronary intervention(PCI) in stable coronary artery disease(CAD) is commonly triggered by abnormal myocardial perfusion imaging(MPI). However, due to the possibilities of multivessel disease and variability of coronary artery perfusion distribution, opportunity exists to better align anatomic stenosis with perfusion ...
arxiv
Nonparametric Bayesian Instrumental Variable Analysis: Evaluating Heterogeneous Effects of Coronary Arterial Access Site Strategies [PDF]
Journal of the American Statistical Association (2020), 2018 Percutaneous coronary interventions (PCIs) are nonsurgical procedures to open blocked blood vessels to the heart, frequently using a catheter to place a stent. The catheter can be inserted into the blood vessels using an artery in the groin or an artery in the wrist.
arxiv +1 more source
Segmentation of Anatomical Layers and Artifacts in Intravascular Polarization Sensitive Optical Coherence Tomography Using Attending Physician and Boundary Cardinality Losses [PDF]
arXiv, 2021 Intravascular ultrasound and optical coherence tomography are widely available for characterizing coronary stenoses and provide critical vessel parameters to optimize percutaneous intervention. Intravascular polarization-sensitive optical coherence tomography (PS-OCT) simultaneously provides high-resolution cross-sectional images of vascular structures
arxiv