中国地区询价
1 (250) 388-3531
+33 4 86 68 68 10
Articles Related to SuperPump
Other Products
-
Accessories
-
Analysis and Computational Modeling
-
Applications
-
AWT with DCT
-
Customized Circulatory Loop
-
Customized circulatory systems
-
Endovascular Simulator
-
Ex ViVo Simulation
-
Flow Visualization
-
Heart Valve Repair
-
Heart Valve Testing
-
HiCycle Durability Tester
-
MRI compatibility
-
Peripheral devices testing
-
Pressure Measurement System
-
Products
-
Pulsatile Flow Simulation
-
Pulse Duplicator
-
Software
-
Stent and Stent/Graft
-
TAVI
-
Tissue Engineering
-
TMVR
-
Ultrasound Measurements
-
VAD Testing
M L J Rose, G A Wright, T G Mackay, W Martin and D J Wheatley; Physiological Measurement: 18; 171-182; 1997.
Other Products Cited: Flow Visualization
Visit SourceJ. M. Guccione, W. G. O’Dell, A. D. McCulloch and W. C. Hunter; American Journal of Physiology: 272; 1997.
Other Products Cited: Ex ViVo Simulation
Visit SourceRichard H. Marcus, MBBCh; Russell S. Heinrich, BSE; James Bednarz, BS; Stephen Lupovitch, MD; Joseph Abruzzo, MD; Raphael Borok, MBBCh; Byron Vandenberg, MD; Richard E. Kerber, MD; William Piccione, MD; Ajit P. Yoganathan, PhD; Roberto M. Lang, MD; American Heart Association: 98; 866-872; 1998.
Other Products Cited: Heart Valve Testing
Visit SourceBradley D. Bolster, Jr, MSE, Ergin Atalar, PhD, Christopher J. Hardy, PhD, and Elliot R. McVeigh, PhD; Journal of Magnetic Resonance Imaging: 8, Issue 4; 878–888; 1998.
Other Products Cited: MRI compatibility
Visit SourceJ. Michael Hasenkama, b, Steffen Ringgaardc, Kim Houlindb, René M. Botnard, Hans Stødkilde-Jørgensenc, Peter Boesigerd, Erik Morre Pedersena, b, c; European Journal of Cardio-Thoracic Surgery: 16; 300-305; 1999.
To evaluate the potential of magnetic resonance imaging (MRI) for evaluation of velocity fields downstream of prosthetic aortic valves. Furthermore, to provide comparative data from bileaflet aortic valve prostheses in vitro and in patients.
Other Products Cited: MRI compatibility
Visit SourceSheng-Jing Dong, Paul S. Hees, Wen-Mei Huang, Sam A. Buffer Jr., James L. Weiss, and Edward P. Shapiro; American Journal of Physiology: 277; 1999.
Shortening of oblique left ventricular (LV) fibers results in torsion. A unique relationship between volume and torsion is therefore expected, and the effects of load and contractility on torsion should be predictable. However, volume-independent behavior of torsion has been observed, and the effects of load on this deformation remain controversial....
Other Products Cited: Pulsatile Flow Simulation
Visit SourceEdmond Rambod, Masoud Beizaie, Michael Shusser, Simcha Milo and Morteza Gharib; Annals of Biomedical Engineering: 27, Issue 6; 774-792; 1999.
This study was aimed at developing a physical model, supported by experimental observations, to describe the formation and growth of microbubbles seen in patients with mitral mechanical heart valves (MHV). This phenomenon, often referred to as high intensity transient signals (HITS), appears as bright, intense, high-velocity and persistent echoes detected by Doppler ultrasonography at the instant of closure.
Other Products Cited: Applications Flow Visualization Pulsatile Flow Simulation
Visit SourcePeter G. Walker, K. Houlind, C. Djurhuus, W.Y. Kim, E.M. Pedersen; Magnetic Resonance in Medicine: 43, Issue 5; 726 – 733; 2000.
Quantifying mitral regurgitation is difficult because of the complexity of the flow, geometry and motion of the mitral valve. In this paper a MRI compatible phantom was built incorporating a left ventricle and mitral valve motion. Valve motion was obtained using a pneumatic piston. The mitral valve was made regurgitant and the regurgitant volume quantified using a modified control volume method. The modification to the method was the addition of mitral motion correction...
Other Products Cited: MRI compatibility
Visit SourceYos S. Morsi; Journal of Artificial Organs: 3, Issue 2; 143-148; 2000.
In examining the hydrodynamic performance of artificial heart valves in vitro, experiments are carried out under either steady or pulsatile flow conditions. Steady flow experiments are simple to set up and analysis of the data is also simple; however, their validity and accuracy have been questioned...
Other Products Cited: Heart Valve Testing
Visit SourceYu, Yih-Choung; Boston, J. Robert; Simaan, Marwan A.; Miller, Phil J.; Antaki, James F.; ASAIO Journal: 47, Issue 3; 293-301; 2001.
A mathematical model describing the pressure-volume relationship of the Novacor left ventricular assist system (LVAS) was developed. The model consists of lumped resistance, capacitance, and inductance elements with one time varying capacitor to estimate the cyclic pressure generation of the pump using pump volume measurement.
Other Products Cited: VAD Testing
Visit SourceYos S. Morsi and Ali A. Sakhaeimanesh; Artificial Organs: 24, Issue 7; 564 – 574; 2001.
Thrombus formation and hemolysis have been linked to the dynamic flow characteristics of heart valve prostheses. To enhance our understanding of the flow characteristics past the aortic position of a Jellyfish (JF) valve in the left ventricle, in vitro laser Doppler anemometry (LDA) measurements were carried out under physiological pulsatile flow conditions...
Other Products Cited: Heart Valve Testing
Visit SourceEvaluation of the Precision of Magnetic Resonance Phase Velocity Mapping for Blood Flow Measurements
George P. Chatzimavroudis; John N. Oshinski; Robert H. Franch; Peter G. Walker; Ajit P. Yoganathan; Roderic I. Pettigrew; Journal of Cardiovascular Magnetic Resonance: 3, Issue 1; 11 – 19; 2001.
Other Products Cited: MRI compatibility
Visit SourceHaosen Zhang, Sandra S. Halliburton, James R. Moore, Orlando P. Simonetti, Paulo R. Schvartzman, Richard D. White and George P. Chatzimavroudis; Annals of Biomedical Engineering: 30, Issue 1; 120-128; 2002.
Magnetic resonance (MR) phase-velocity mapping (PVM) is routinely being used clinically to measure blood flow velocity. Conventional nonsegmented PVM is accurate but relatively slow (3-5 min per measurement). Ultrafast k-space segmented PVM offers much shorter acquisitions (on the order of seconds instead of minutes).
Other Products Cited: MRI compatibility
Visit SourceNatascha Simon-Kupilik, MDa, Heinz Schima, PhDb, Leopold Huber, MEb, Reinhard Moidl, MDa, Gerhard Wipplingerb, Udo Losert, MDc, Ernst Wolner, MDa, Paul Simon, MD; The Annals of Thoracic Surgery: 73; 455-459; 2002.
Aortic root replacement for prosthetic aortic valve endocarditis with accompanying destruction of the aortic root is a well-established surgical intervention. However, there is still no consensus whether prosthetic material or allogeneic material should be used. Here we report on our experience with prosthetic composite and aortic allograft root replacement in such patients during a 10-year interval.
Other Products Cited: Heart Valve Testing Pulsatile Flow Simulation
Visit SourceExperiments in Fluids: 33, Issue 3; 458-463; 2002.
Other Products Cited: MRI compatibility
Visit SourceJulia Mascherbauera, Heinrich Schimab, Raphael Rosenheka, Martin Czernyc, Gerald Maurera and Helmut Baumgartnera; European Heart Journal: 25, Issue 9; 787-793; 2004.
The calculation of valve resistance (R) rather than aortic valve area (AVA) has been proposed for the assessment of aortic stenosis (AS), based on the claim that it is less flow-dependent. Even more importantly, valve resistance has been reported to distinguish between truly severe and "pseudosevere" AS in patients with low cardiac output. However, the diagnostic value of valve resistance remains controversial.
Other Products Cited: Pulsatile Flow Simulation
Visit SourceHaosen Zhang, Sandra S. Halliburton, Richard D. White and George P. Chatzimavroudis; Annals of Biomedical Engineering: 32, Issue 12; 1618-1627; 2004.
Magnetic-resonance (MR) phase velocity mapping (PVM) shows promise in measuring the mitral regurgitant volume. However, in its conventional nonsegmented form, MR-PVM is slow and impractical for clinical use. The aim of this study was to evaluate the accuracy of rapid, segmented k-space MR-PVM in quantifying the mitral regurgitant flow through a control volume (CV) method.
Other Products Cited: MRI compatibility
Visit SourceGeorge P. Chatzimavroudis, Peter G. Walker, John N. Oshinski, Robert H. Franch, Roderic I. Pettigrew, Ajit P. Yoganathan, Ph.D.; Magnetic Resonance in Medicine: 37, Issue 4; 545 – 551; 2005
Although several methods have been used clinically to assess aortic regurgitation (AR), there is no "gold standard" for regurgitant volume measurement. Magnetic resonance phase velocity mapping (PVM) can be used for noninvasive blood flow measurements.
Other Products Cited: MRI compatibility
Visit SourceSuchitra Konduri, Yun Xing, James N. Warnock, Zhaoming He and Ajit P. Yoganathan; Annals of Biomedical Engineering: 33, Issue 9; 1158-1166; 2005.
Quantifying mitral regurgitation is difficult because of the complexity of the flow, geometry and motion of the mitral valve. In this paper a MRI compatible phantom was built incorporating a left ventricle and mitral valve motion. Valve motion was obtained using a pneumatic piston. The mitral valve was made regurgitant and the regurgitant volume quantified using a modified control volume method. The modification to the method was the addition of mitral motion correction. T
Other Products Cited: MRI compatibility
Visit SourceAshwin Prakash, MD, Ruchira Garg, MD, Edward N. Marcus, MSc, Glenn Reynolds, PhD, Tal Geva, MD, Andrew J. Powell, MD; Journal of Magnetic Resonance Imaging: 24, Issue 3; 676 – 682; 2006.
To test the agreement between conventional and sensitivity-encoded (SENSE) velocity encoded cine (VEC) MRI in a flow phantom and in subjects with congenital and acquired heart disease...
Other Products Cited: MRI compatibility
Visit Source