Publications
184 results found
da Cunha RP, van de Hoef T, Nijjer S, et al., 2014, PROGNOSTIC INSIGHTS INTO THE UTILISATION OF INSTANTANEOUS WAVE-FREE RATIO (IFR) TO GUIDE CORONARY REVASCULARISATION: RESULTS OF THE JUSTIFY-CFR STUDY, A COMPARISON OF PRESSURE-ONLY INDICES AGAINST CORONARY FLOW RESERVE, JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY, Vol: 63, Pages: A1507-A1507, ISSN: 0735-1097
Foin N, Gutierrez-Chico JL, Nakatani S, et al., 2014, Incomplete Stent Apposition Causes High Shear Flow Disturbances and Delay in Neointimal Coverage as a Function of Strut to Wall Detachment Distance Implications for the Management of Incomplete Stent Apposition, CIRCULATION-CARDIOVASCULAR INTERVENTIONS, Vol: 7, Pages: 180-189, ISSN: 1941-7640
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- Citations: 156
Luboz V, Kyaw-Tun J, Sen S, et al., 2014, Real-time stent and balloon simulation for stenosis treatment, VISUAL COMPUTER, Vol: 30, Pages: 341-349, ISSN: 0178-2789
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- Citations: 7
Nijjer S, Petraco R, Sen S, et al., 2014, The change in coronary flow after percutaneous coronary intervention in physiologically defined coronary stenoses, LANCET, Vol: 383, Pages: 76-76, ISSN: 0140-6736
Echavarria-Pinto M, Gonzalo N, Ibanez B, et al., 2014, Low Coronary Microcirculatory Resistance Associated With Profound Hypotension During Intravenous Adenosine Infusion Implications for the Functional Assessment of Coronary Stenoses, CIRCULATION-CARDIOVASCULAR INTERVENTIONS, Vol: 7, Pages: 35-42, ISSN: 1941-7640
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- Citations: 23
Sen S, Petraco R, Mayet J, et al., 2014, Wave intensity analysis in the human coronary circulation in health and disease., Curr Cardiol Rev, Vol: 10, Pages: 17-23
Coronary artery hemodynamics are very different to that of the systemic arteries; unlike the systemic circulation, in the coronary circulation pressure is generated from both the proximal and distal end of the artery - due to the effect of contraction and relaxation of the myocardium on the microvasculature. As a result, the systemic artery hemodynamic model cannot be used to explain the pressure-flow relationship in the coronaries. Wave intensity analysis is an investigative tool that is able to distinguish simultaneous proximal and distal influences on coronary blood flow and is therefore uniquely suitable for the study of coronary haemodynamics. This review discusses the concept behind wave intensity analysis and evaluates how it has been used to characterise and provide new insights on coronary haemodynamics in health and disease.
Petraco R, Escaned J, Nijjer S, et al., 2014, Fractional Flow Reserve: A Good or a Gold Standard? Reply, JACC-CARDIOVASCULAR INTERVENTIONS, Vol: 7, Pages: 228-229, ISSN: 1936-8798
Tarkin JM, Nijjer S, Sen S, et al., 2014, Hemodynamic Response to Intravenous Adenosine and Its Effect on Fractional Flow Reserve Assessment Results of the Adenosine for the Functional Evaluation of Coronary Stenosis Severity (AFFECTS) Study, CELL BIOLOGY INTERNATIONAL, Vol: 38, Pages: 654-661, ISSN: 1065-6995
Echavarria-Pinto M, Escaned J, Macias E, et al., 2013, Disturbed Coronary Hemodynamics in Vessels With Intermediate Stenoses Evaluated With Fractional Flow Reserve A Combined Analysis of Epicardial and Microcirculatory Involvement in Ischemic Heart Disease, CIRCULATION, Vol: 128, Pages: 2557-2566, ISSN: 0009-7322
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- Citations: 111
Tarkin JM, Nijjer S, Sen S, et al., 2013, Hemodynamic Response to Intravenous Adenosine and Its Effect on Fractional Flow Reserve Assessment Results of the Adenosine for the Functional Evaluation of Coronary Stenosis Severity (AFFECTS) Study, CIRCULATION-CARDIOVASCULAR INTERVENTIONS, Vol: 6, Pages: 654-661, ISSN: 1941-7640
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- Citations: 47
Foin N, Mattesini A, Ghione M, et al., 2013, Tools & Techniques Clinical: Optimising stenting strategy in bifurcation lesions with insights from <i>in vitro</i> bifurcation models, EUROINTERVENTION, Vol: 9, Pages: 885-887, ISSN: 1774-024X
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- Citations: 16
Petraco R, van de Hoef TP, Nijjer SS, et al., 2013, Identification of stenoses with high underlying coronary flow reserve from pressure-only measurements using baseline instant wave-free ratio (iFR) and hyperaemic fractional flow reserve (FFR), 25th Annual Symposium on Transcatheter Cardiovascular Therapeutics (TCT), Publisher: ELSEVIER SCIENCE INC, Pages: B190-B190, ISSN: 0735-1097
Echavarria-Pinto M, Nijjer SS, Sen S, et al., 2013, Low coronary microcirculatory resistance associated to profound hypotension during intravenous adenosine infusion. Implications for the functional assessment of coronary stenoses., 25th Annual Symposium on Transcatheter Cardiovascular Therapeutics (TCT), Publisher: ELSEVIER SCIENCE INC, Pages: B191-B191, ISSN: 0735-1097
Foin N, Alegria E, Torii R, et al., 2013, Location of Side Branch Access Critically Affects Results in Bifurcation Stenting: Insights From In-vitro Modeling and Optical Coherence Tomography, 25th Annual Symposium on Transcatheter Cardiovascular Therapeutics (TCT), Publisher: ELSEVIER SCIENCE INC, Pages: B180-B181, ISSN: 0735-1097
Kousera CA, Nijjer SS, Torii R, et al., 2013, Optical Coherence Tomography can be combined with angiography to create highly accurate patient-specific models of human coronary anatomy in a rapid automated manner, 25th Annual Symposium on Transcatheter Cardiovascular Therapeutics (TCT), Publisher: ELSEVIER SCIENCE INC, Pages: B195-B195, ISSN: 0735-1097
Kousera CA, Nijjer SS, Torii R, et al., 2013, Patient-specific Coronary Stenoses Can Be Modeled Using a Combination of Optical Coherence Tomography and Flow Velocities to Accurately Predict Hyperaemic Pressure Gradients, 25th Annual Symposium on Transcatheter Cardiovascular Therapeutics (TCT), Publisher: ELSEVIER SCIENCE INC, Pages: B186-B186, ISSN: 0735-1097
van de Hoef TP, Petraco R, van Lavieren MA, et al., 2013, Diagnostic accuracy of basal stenosis resistance index (BSR) is higher than that of instantaneous wave-free ratio (iFR): validation of basal stenosis resistance index in an independent cohort of simultaneous pressure and flow measurements, 25th Annual Symposium on Transcatheter Cardiovascular Therapeutics (TCT), Publisher: ELSEVIER SCIENCE INC, Pages: B193-B193, ISSN: 0735-1097
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- Citations: 1
Nijjer SS, van de Hoef TP, Petraco R, et al., 2013, Mean Hyperemic Flow is Not Increased Following Adenosine Administration in Physiologically Significant Lesions, 25th Annual Symposium on Transcatheter Cardiovascular Therapeutics (TCT), Publisher: ELSEVIER SCIENCE INC, Pages: B188-B188, ISSN: 0735-1097
Foin N, Torii R, Alegria E, et al., 2013, Location of side branch access critically affects results in bifurcation stenting: Insights from bench modeling and computational flow simulation, INTERNATIONAL JOURNAL OF CARDIOLOGY, Vol: 168, Pages: 3623-3628, ISSN: 0167-5273
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- Citations: 47
Petraco R, Escaned J, Sen S, et al., 2013, How high can "accuracy" be for iFR (or IVUS, or SPECT or OCT...) if using fractional flow reserve as the gold standard? RESPONSE, EUROINTERVENTION, Vol: 9, Pages: 770-772, ISSN: 1774-024X
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- Citations: 2
Sen S, Davies J, 2013, Can anatomy be used as a surrogate for physiology? The IVUS conundrum, INTERNATIONAL JOURNAL OF CARDIOLOGY, Vol: 168, Pages: 631-632, ISSN: 0167-5273
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- Citations: 1
Nijjer SS, Sen S, Petraco R, et al., 2013, Improvement in coronary haemodynamics after percutaneous coronary intervention: assessment using instantaneous wave-free ratio., Heart, Vol: 99, Pages: 1740-1748
To determine whether the instantaneous wave-free ratio (iFR) can detect improvement in stenosis significance after percutaneous coronary intervention (PCI) and compare this with fractional flow reserve (FFR) and whole cycle Pd/Pa.
Tarkin J, Nijjer S, Sen S, et al., 2013, The haemodynamic response to intravenous adenosine and its impact on fractional flow reserve: results of the AFFECTS (Adenosine For the Functional assEssment of Coronary sTenosis Severity) study, Congress of the European-Society-of-Cardiology (ESC), Publisher: OXFORD UNIV PRESS, Pages: 514-514, ISSN: 0195-668X
Broyd CJ, Sen S, Mikhail GW, et al., 2013, Myocardial ischemia in aortic stenosis: Insights from arterial pulse-wave dynamics after percutaneous aortic valve replacement, TRENDS IN CARDIOVASCULAR MEDICINE, Vol: 23, Pages: 185-191, ISSN: 1050-1738
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- Citations: 17
Foin N, Sen S, Petraco R, et al., 2013, Method for Percutaneously Introducing, and Removing, Anatomical Stenosis of Predetermined Severity In Vivo: The "Stenotic Stent", JOURNAL OF CARDIOVASCULAR TRANSLATIONAL RESEARCH, Vol: 6, Pages: 640-648, ISSN: 1937-5387
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- Citations: 3
Petraco R, Sen S, Nijjer S, et al., 2013, Implications of The Biological Variability of Fractional Flow Reserve on Coronary Revascularization Decisions., 18th Angioplasty Summit Transcatheter Cardiovascular Therapeutics Asia Pacific (TCTAP), Publisher: EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC, Pages: 51B-51B, ISSN: 0002-9149
Sen S, Petraco R, Nijjer S, et al., 2013, The Instant Wave-free Ratio, a Vasodilator Free Index; Provides Lower Microvascular Resistance Than That During Adenosine Mediated Fractional Flow Reserve in a Significant Proportion of Patients., 18th Angioplasty Summit Transcatheter Cardiovascular Therapeutics Asia Pacific (TCTAP), Publisher: EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC, Pages: 101B-101B, ISSN: 0002-9149
Petraco R, Park JJ, Sen S, et al., 2013, Hybrid Ifr-FFR Decision-Making Strategy: Implications for Enhancing Universal Adoption of Physiology-Guided Coronary Revascularization., 18th Angioplasty Summit Transcatheter Cardiovascular Therapeutics Asia Pacific (TCTAP), Publisher: EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC, Pages: 54B-54B, ISSN: 0002-9149
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- Citations: 4
Petraco R, Van de Hoef TP, Nijjer S, et al., 2013, Safety and Prognostic Value of Baseline Hemodynamic Indices of Coronary Disease Severity: Insights from an Estimated Agreement of Stenosis Classification with Fractional Flow Reserve in The DEFER and FAME Studies., 18th Angioplasty Summit Transcatheter Cardiovascular Therapeutics Asia Pacific (TCTAP), Publisher: EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC, Pages: 53B-53B, ISSN: 0002-9149
Sen S, Petraco R, Nijjer S, et al., 2013, The Trans-stenotic Pressure Gradient During the Diastolic Wave-free Period Is Proportional to Flow: the Physiological Basis of the Instant-wave-free Ratio., 18th Angioplasty Summit Transcatheter Cardiovascular Therapeutics Asia Pacific (TCTAP), Publisher: EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC, Pages: 100B-100B, ISSN: 0002-9149
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