Results 41 to 50 of about 7,221,304 (242)

WEC Scale Model Build & Test: Fabrication and Wave Laboratory Testing of 1/10 Scale Wave Energy Conversion Device

Neptune Wave Power, LLC (‘NWP’), worked with OWET, the Northwest National Marine Renewable Energy Center (‘NNMREC’) and Oregon State University (O.H. Hinsdale Wave Research Laboratory) to build and test a 1/10 scale model wave energy conversion (‘WEC ...
Neptune Wave Power LLC, Mayfield, Edwin P. Jr.   +1 more
core   +6 more sources

Waves and Windkessels reviewed

Artery Research, 2017
Pressure and flow are travelling waves and are reflected at many locations. The forward and reflected waves, obtained by wave separation, are compound waves.
Nicolaas Westerhof, Berend E. Westerhof
doaj   +1 more source

Novel Humanized Biosimulator to Predict Coronary Obstruction in High-Risk Valve-in-Valve Procedures

JACC: Case Reports, 2023
We developed humanized biosimulator to predict the risk of coronary obstruction among high-risk patients undergoing valve-in-valve (ViV) procedures. In this case, based on unchanged instantaneous wave-free ratio values measured during a ViV simulation ...
Nils Perrin, MD, Guillaume Bonnet, MD, Réda Ibrahim, MD, Raoul Bonan, MD, Lionel Leroux, MD, Juan F. Granada, MD, Jean Claude Tardif, MD, Thomas Modine, MD, PhD, MBA, Walid Ben Ali, MD, PhD   +8 more
doaj   +1 more source

Agreement of the Resting Distal to Aortic Coronary Pressure With the Instantaneous Wave-Free Ratio [PDF]

Journal of the American College of Cardiology, 2017
Recently, 2 randomized controlled trials showed that the instantaneous wave-free ratio (iFR), a resting coronary physiological index, is noninferior to fractional flow reserve for guiding revascularization. The resting distal to aortic coronary pressure (Pd/Pa) measured at rest is another adenosine-free index widely available in the cardiac ...
Kobayashi, Yuhei, Johnson, Nils P, Zimmermann, Frederik M, Witt, Nils, Berry, Colin, Jeremias, Allen, Koo, Bon kwon, ESPOSITO, GIOVANNI, Rioufol, Gilles, Park, Seung jung, Nishi, Takeshi, Choi, Dong hyun, Oldroyd, Keith G, BARBATO, EMANUELE, Pijls, Nico H. J, De Bruyne, Bernard, Fearon, William F.   +16 more
openaire   +4 more sources

Is the Instantaneous Wave-Free Ratio Equivalent to Fractional Flow Reserve?

Journal of the American College of Cardiology, 2013
We read the paper by Sen et al. [(1)][1] with great interest; the study was designed to explore whether the instantaneous wave-free ratio (iFR) was an adenosine-free alternative to fractional flow reserve (FFR) for the assessment of coronary stenosis.
Fan, Guo-Xin, Xu, Ya-Wei
openaire   +2 more sources

Diagnostic accuracy of instantaneous wave free‐ratio in clinical practice

Journal of Interventional Cardiology, 2017
AimsTo evaluate the correlation between iFR and FFR in real‐world clinical practice.Methods and ResultsRetrospective, single‐centre study of 229 consecutive pressure‐wire studies (np = 158). Real‐time iFR and FFR measurements were performed for angiographically borderline stenoses.
Wern Yew Ding, Satheesh Nair, Clare Appleby   +2 more
openaire   +2 more sources

2011-2013 Biennial Report [PDF]

Oregon Wave Energy Trust (OWET) is a nonprofit public-private partnership funded by the Oregon Innovation Council. Its mission is to support the responsible development of wave energy in Oregon. OWET emphasizes an inclusive, collaborative model to ensure
Oregon Wave Energy Trust
core   +6 more sources

Change in instantaneous wave-free ratio in the donor artery in multivessel coronary disease: a case report

Российский кардиологический журнал, 2022
Patients with multivessel coronary artery disease require an individual approach when choosing tactics for myocardial revascularization. In some cases, additional methods for assessing the stenosis significance should be used, such as measuring the ...
F. B. Shukurov, T. P. Baronets, B. A. Rudenko, D. K. Vasiliev, D. A. Feshchenko   +4 more
doaj   +1 more source

Simplifying the Assessment of Coronary Artery Stenosis by Enhancing Instantaneous Wave Free Ratio [PDF]

Archives of Cardiovascular Diseases Supplements, 2017
Instantaneous wave free ratio (iFR) does not require adenosine, but has a relatively wide intermediate range where functional assessment remains inconclusive. In this pilot study, we sought to enhance iFR through with the use of intracoronary (IC) saline (iFRs) and contrast media (iFRc) and determine whether these techniques correlated well with ...
Spagnoli, Vincent, Picard, Fabien, Tadros, Victor-Xavier, Cournoyer, Daniel, Doucet, Serge, Tanguay, Jean François, Gosselin, Gilbert, de Guise, Pierre, Gallo, Richard   +8 more
openaire   +4 more sources

Instantaneous wave-free ratio cutoff values for nonculprit stenosis classification in patients with ST-segment elevation myocardial infarction (an iSTEMI substudy).

, 2020
An iSTEMI substudyOBJECTIVES: The instantaneous wave-free ratio cutoff value of 0.90 had a negative predictive value of 89%. Acute instantaneous wave-free ratio 0.93 had a negative predictive value of 100%. Acute instantaneous wave-free ratio
van Royen, N, Baptista, SB, et al., Thim, T, Nijveldt, R, Götberg, M, Fröbert, O   +5 more
core   +2 more sources