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Claudio Capelli, Chiara Corsini, Dario Biscarini, Francesco Ruffini, Francesco Migliavacca, Alfred Kocher, Guenther Laufer, Andrew M. Taylor, Silvia Schievano, Martin Andreas, Gaetano Burriesci, Claus Rath: Cardiovascular Engineering and Technology (2016). doi:10.1007/s13239-016-0284-8
...Recently, novel bioprostheses which include a stent-based anchoring system have been introduced to allow rapid implantation, therefore reducing the duration and invasiveness of the intervention. ...The results showed how the performance of cardiac valve substitutes is negatively affected by the presence of pledget-armed sutures... ...The measurements were collected during ten cardiac cycles and analysed in the VSI software pack- age (VSI, ViVitro, Victoria, BC, Canada). The leaflets kinematics were visualised using a high-speed camera. For ...
Other Products Cited: Pulse Duplicator Software
Visit SourceJohn Davidson, Sangjin Ryu Journal of Visualization pp 1-9 First online: 30 May 2016
Soap bubble blowing has long been an amusement for humans, and the process involves pinch-off similarly to liquid drops and gas bubbles. ... 2.4.2 Measurement using a Pitot tube. To validate the image-based speed measurement, we measured the airflow speed at the center of the nozzle outlet (U e ) using a Pitot static tube (PAA-8-KL, United Sensor Corp.) with pressure transducers (Pulse Duplicator, ViVitro Labs). ...
Other Products Cited: Pressure Measurement System SuperPump
Visit SourceJ Poree, D Garcia, B Chayer, J Ohayon, G Cloutier - Medical Imaging, IEEE Transactions on (Volume:PP , Issue: 99 )
Recent developments in compound plane wave (CPW) imaging have led to high speed and high resolution imaging. In this study, we present the performance of NIVE using CPW. We show the impact of CPW beamforming on strain estimates compared to conventional focus sequences.
Other Products Cited: Software
Visit SourceNg, Kim-Gau; Ting, Choon-Meng; Yeo, Joon-Hock; Sim, Kwang-Wei; Peh, Wee-Leng; Chua, Ngak-Hwee; Chua, Ngak-Kwong; Kwong, Frank; Blood Pressure Monitoring: 9, Issue 3; 149-165.
The MediWatch is a wrist-mounted noninvasive blood pressure monitor designed to capture the radial pulse waveform using arterial tonometry and yield blood pressure measurements when the waveform is calibrated. An early prototype of this monitor uses a pulse-sensing system with a cylindrical plunger to applanate the radial artery. This prototype was evaluated against simulated blood pressure generated by a pneumatic pressure-pulse generator.
Other Products Cited: Pressure Measurement System
Visit SourceAcute and Chronic Swine Rete Arteriovenous Malformation Models: Hemodynamics and Vascular Remodeling
A. K. Wakhlooa, B. B. Liebera, R. Siekmannc, D. J. Ebera and M. J. Gounisa; American Journal of Neuroradiology: 26; 1702-1706.
Liquid embolic agents are increasingly gaining importance in the embolization of cerebral arteriovenous malformations (AVMs). Currently, the most commonly used agent is N-butyl 2-cyanoacrylate (NBCA). Various NBCA mixtures, arterial hypotension, and Valsalva maneuver (increased positive end-expiratory pressure) during the injection of the acrylate have been used to address hemodynamic and architectural variations of an AVM; however, the precise in vivo polymerization, distribution, and kinetics of NBCA mixtures are unknown. We investigated the effect of different acrylate/Lipiodol mixtures and the addition of glacial acetic acid (GAA) on the penetration, dispersion, and injection force of NBCA.
Other Products Cited: Pressure Measurement System Pulsatile Flow Simulation
Visit SourceMorteza Gharib and Masoud Beizaie; Annals of Biomedical Engineering: 31, Issue 6; 678-685; 2003.
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Visit SourceZhang, Pei; Yeo, Joon Hock; Hwang, N H. C.; ASAIO Journal: 52, Issue 4; 391-397; 2006.
Other Products Cited: Pressure Measurement System Pulse Duplicator
Visit SourceZhang, Pei; Yeo, Joon Hock; Qian, Ping; Hwang, Ned H. C.; ASAIO Journal: 53, Issue 5; 530-536; 2007.
The particle image velocimetry technique was used to study the shear field across a transparent mechanical heart valve model in one cardiac cycle. Shear stress was continuously increased until peak systole and high turbulent stress was observed at the orifice of the central channel and also around the occluder trailing tips.
Other Products Cited: Pressure Measurement System
Visit SourceChoon-Sik Jhun and Joshua P. Cysyk* – Artificial Organs Volume 38, Issue 4, pages 309–315, April 2014
End-systolic elastance and end-diastolic compliance have been used to quantify systolic and diastolic function of the left ventricle (LV). In this study, the effective end-systolic elastance, (EES)eff, end-systolic volume intercept, (V0)eff, and end-diastolic compliance of the LV were assessed at various levels of left ventricular assist device (LVAD) support.
Other Products Cited: VAD Testing
Visit SourceJ Luo, SA Korossis, SPP Wilshaw, LM Jennings… – Tissue Engineering, 2014
… testing. The flow simulator has been described previously. 27 It mimicked the right heart and was controlled and monitored by the ViviTest software (Vivitro Systems Inc). The simulator was set up as described by Korossis et al. …
Other Products Cited: Pulse Duplicator Software Tissue Engineering
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