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The Effects That Cardiac Motion has on Coronary Hemodynamics and Catheter Trackability Forces for the Treatment of Coronary Artery Disease: An In Vitro Assessment
Springer Science and Business Media LLC - Tập 6 - Trang 430-449 - 2015
Liam Morris, Paul Fahy, Florian Stefanov, Ronan Finn
The coronary arterial tree experiences large displacements due to the contraction and expansion of the cardiac muscle and may influence coronary haemodynamics and stent placement. The accurate measurement of catheter trackability forces within physiological relevant test systems is required for optimum catheter design. The effects of cardiac motion on coronary flowrates, pressure drops, and stent ...... hiện toàn bộ
Speckle-Tracking Echocardiography Enables Model-Based Identification of Regional Stiffness Indices in the Left Ventricular Myocardium
Springer Science and Business Media LLC - Tập 11 - Trang 176-187 - 2020
William M. Torres, Francis G. Spinale, Tarek Shazly
Left ventricular (LV) remodeling is a critical process underlying heart failure (HF) development and progression. While LV global longitudinal strain determined by speckle-tracking echocardiography (STE) provides a promising basis to monitor LV remodeling, reported strain measures are limited by the masking of regional differences and a dependency on hemodynamic load. Our goal is to extend two-dim...... hiện toàn bộ
Correction to: Predictive Model for Thrombus Formation After Transcatheter Valve Replacement
Springer Science and Business Media LLC - Tập 13 - Trang 516-516 - 2022
Hoda Hatoum, Shelly Singh-Gryzbon, Fateme Esmailie, Philipp Ruile, Franz-Josef Neumann, Philipp Blanke, Vinod H. Thourani, Ajit P. Yoganathan, Lakshmi Prasad Dasi
Patient-Specific Quantitative In-Vivo Assessment of Human Mitral Valve Leaflet Strain Before and After MitraClip Repair
Springer Science and Business Media LLC - Tập 14 - Trang 677-693 - 2023
Natalie T. Simonian, Hao Liu, Sneha Vakamudi, Mark J. Pirwitz, Alison M. Pouch, Joseph H. Gorman, Robert C. Gorman, Michael S. Sacks
Mitral regurgitation (MR) is a highly prevalent and deadly cardiac disease characterized by improper mitral valve (MV) leaflet coaptation. Among the plethora of available treatment strategies, the MitraClip is an especially safe option, but optimizing its long-term efficacy remains an urgent challenge. We applied our noninvasive image-based strain computation pipeline [1] to intraoperative transes...... hiện toàn bộ
Hemodynamic Effects of Additional Pulmonary Blood Flow on Glenn and Fontan Circulation
Springer Science and Business Media LLC - Tập 11 - Trang 268-282 - 2020
Xiangyu Chen, Haiyun Yuan, Jiawei Liu, Neichuan Zhang, Chengbin Zhou, Meiping Huang, Qifei Jian, Jian Zhuang
Additional pulmonary blood flow (APBF) can provide better pulsating blood flow and systemic arterial oxygen saturation, while low blood pulsation and low oxygen saturation are defects of the Fontan and Glenn procedure. Studying the hemodynamic effect of APBF is beneficial for clinical decisions. This study aimed to explore the effect on particle washout, as well as the differences among the sensit...... hiện toàn bộ
Effect of Pneumatic Tubing System Transport on Platelet Apheresis Units
Springer Science and Business Media LLC - Tập 9 - Trang 515-527 - 2018
Jevgenia Zilberman-Rudenko, Frank Z. Zhao, Stephanie E. Reitsma, Annachiara Mitrugno, Jiaqing Pang, Joseph J. Shatzel, Beth Rick, Christina Tyrrell, Wohaib Hasan, Owen J. T. McCarty, Martin A. Schreiber
Platelet apheresis units are transfused into patients to mitigate or prevent bleeding. In a hospital, platelet apheresis units are transported from the transfusion service to the healthcare teams via two methods: a pneumatic tubing system (PTS) or ambulatory transport. Whether PTS transport affects the activity and utility of platelet apheresis units is unclear. We quantified the gravitational for...... hiện toàn bộ
PediaFlow™ Maglev Ventricular Assist Device: A Prescriptive Design Approach
Springer Science and Business Media LLC - Tập 1 - Trang 104-121 - 2010
James F. Antaki, Michael R. Ricci, Josiah E. Verkaik, Shaun T. Snyder, Timothy M. Maul, Jeongho Kim, Dave B. Paden, Marina V. Kameneva, Bradley E. Paden, Peter D. Wearden, Harvey S. Borovetz
This report describes a multi-disciplinary program to develop a pediatric blood pump, motivated by the critical need to treat infants and young children with congenital and acquired heart diseases. The unique challenges of this patient population require a device with exceptional biocompatibility, miniaturized for implantation up to 6 months. This program implemented a collaborative, prescriptive ...... hiện toàn bộ
Guest Editorial: Special Issue on Fetal Hemodynamics
Springer Science and Business Media LLC - Tập 4 - Trang 231-233 - 2013
Kerem Pekkan, Bradley B. Keller
Towards the Identification of Hemodynamic Parameters Involved in Arteriovenous Fistula Maturation and Failure: A Review
Springer Science and Business Media LLC - - 2017
Marco Franzoni, Michael T. Walsh
Native arteriovenous fistulas have a high failure rate mainly due to the lack of maturation and uncontrolled neo-intimal hyperplasia development. Newly established hemodynamics is thought to be central in driving the fistula fate, after surgical creation. To investigate the effects of realistic wall shear stress stimuli on endothelial cells, an in vitro approach is necessary in order to reduce the...... hiện toàn bộ
Establishment of a Modular Hemodynamic Simulator for Accurate In Vitro Simulation of Physiological and Pathological Pressure Waveforms in Native and Bioartificial Blood Vessels
Springer Science and Business Media LLC - Tập 13 - Trang 291-306 - 2021
Florian Helms, Axel Haverich, Mathias Wilhelmi, Ulrike Böer
In vitro stimulation of native and bioartificial vessels in perfusable systems simulating natural mechanical environments of the human vasculature represents an emerging approach in cardiovascular research. Promising results have been achieved for applications in both regenerative medicine and etiopathogenetic investigations. However, accurate and reliable simulation of the wide variety of physiol...... hiện toàn bộ
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