Imperial College London

Dr Ricardo Petraco

Faculty of MedicineNational Heart & Lung Institute

Honorary Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 3386r.petraco

 
 
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Location

 

Block B Hammersmith HospitalHammersmith Campus

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Summary

 

Publications

Publication Type
Year
to

207 results found

Foin N, Torii R, Alegria E, Sen S, Petraco R, Nijjer S, Ghione M, Davies JE, Di Mario Cet 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

Journal article

Petraco R, Escaned J, Sen S, Nijjer S, Francis DP, Davies JEet 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

Journal article

Nijjer SS, Sen S, Petraco R, Sachdeva R, Cuculi F, Escaned J, Broyd C, Foin N, Hadjiloizou N, Foale RA, Malik I, Mikhail GW, Sethi AS, Al-Bustami M, Kaprielian RR, Khan MA, Baker CS, Bellamy MF, Hughes AD, Mayet J, Kharbanda RK, Di Mario C, Davies JEet 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.

Journal article

Tarkin J, Nijjer S, Sen S, Petraco R, Mayet J, Echavarria Pinto M, Redwood S, Francis D, Escaned J, Davies Jet 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

Conference paper

Foin N, Sen S, Petraco R, Nijjer S, Torii R, Kousera C, Broyd C, Mehta V, Xu Y, Mayet J, Hughes A, Di Mario C, Krams R, Francis D, Davies Jet 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

Journal article

Nijjer SSS, Sen S, Petraco R, Cuculi F, Broyd C, Foale RA, Malik IS, Mikhail GW, Sethi AS, Kaprielian RR, Baker CSR, Hughes AD, Francis DP, Mayet J, Kharbanda RK, Di Mario C, Davies JEet al., 2013, INSTANTANEOUS WAVE-FREE RATIO (IFR) CAN DETECT IMPROVEMENT IN CORONARY STENOSIS SEVERITY AFTER PERCUTANEOUS INTERVENTION, Annual Conference of the British-Cardiovascular-Society (BCS), Publisher: BMJ PUBLISHING GROUP, Pages: A37-A37, ISSN: 1355-6037

Conference paper

Sen S, Nijjer SS, Petraco R, Foale RA, Malik IS, Mikhail GW, Hughes AD, Escaned J, Francis DP, Mayet J, Davies JEet 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, Annual Conference of the British-Cardiovascular-Society (BCS), Publisher: BMJ PUBLISHING GROUP, ISSN: 1355-6037

Conference paper

Sen S, Nijjer SS, Petraco R, Foale RA, Malik IS, Mikhail GW, Asrress K, Hughes AD, Escaned J, Francis DP, Redwood S, Mayet J, Davies JEet al., 2013, FRACTIONAL FLOW RESERVE AND THE INSTANT WAVE-FREE RATIO HAVE EQUIVALENT AGREEMENT WITH FLOW BASED INDICES ACROSS THE ENTIRE SPECTRUM OF STENOSIS SEVERITY RESULTS OF THE CLARIFY STUDY RESULTS OF CLARIFY, Annual Conference of the British-Cardiovascular-Society (BCS), Publisher: BMJ PUBLISHING GROUP, Pages: A35-A35, ISSN: 1355-6037

Conference paper

Nijjer SS, Eshtehardi P, Corban MT, Mekonnen G, Gogas B, McDaniel MC, Sen S, Petraco R, Davies JE, Samady Het al., 2013, RELIABILITY OF RESTING CORONARY HAEMODYNAMICS WHEN REPEATED AFTER 6 MONTHS, Annual Conference of the British-Cardiovascular-Society (BCS), Publisher: BMJ PUBLISHING GROUP, ISSN: 1355-6037

Conference paper

Petraco R, Sen S, Nijjer SS, Escaned J, Francis DP, Davies JEet al., 2013, FFR-GUIDED CORONARY REVASCULARISATION: IMPLICATIONS OF ITS BIOLOGICAL VARIABILITY ON CLINICAL DECISIONS, Annual Conference of the British-Cardiovascular-Society (BCS), Publisher: BMJ PUBLISHING GROUP, ISSN: 1355-6037

Conference paper

Petraco R, Sen S, Nijjer S, Davies JEet al., 2013, How would I treat? THE INVITED EXPERTS' OPINION, EUROINTERVENTION, Vol: 9, Pages: 160-161, ISSN: 1774-024X

Journal article

Petraco R, Escaned J, Francis DP, Davies JEet al., 2013, Challenging the need for hyperaemia REPLY, EUROINTERVENTION, Vol: 9, Pages: 167-168, ISSN: 1774-024X

Journal article

Petraco R, Sen S, Nijjer S, Escaned J, Davies JEet al., 2013, Baseline coronary pressures, instant wave-free ratio (iFR) and Pd/Pa: making the most of available information REPLY, EUROINTERVENTION, Vol: 9, Pages: 170-172, ISSN: 1774-024X

Journal article

Petraco R, Van de Hoef TP, Nijjer S, Sen S, Meuwissen M, Escaned J, Davies J, Piek Jet 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

Conference paper

Sen S, Nijjer S, Petraco R, Malik I, Foale R, Mikhail G, Sethi A, Escaned J, Hughes A, Francis D, Mayet J, Davies Jet al., 2013, The Effect of Adenosine on Coronary Microvascular Resistance Is More Consistent During the Diastolic Wave-free Period: Should We Continue to Use the Complete Cardiac Cycle for Stenosis Assessment?, 18th Angioplasty Summit Transcatheter Cardiovascular Therapeutics Asia Pacific (TCTAP), Publisher: EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC, Pages: 100B-101B, ISSN: 0002-9149

Conference paper

Sen S, Petraco R, Nijjer S, Malik I, Foale R, Mikhail G, Sethi A, Hughes A, Francis D, Mayet J, Davies Jet 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

Conference paper

Petraco R, Park JJ, Sen S, Nijjer S, Malik I, Pinto ME, Asrress K, Nam CW, Foale R, Sethi A, Mikhail G, Baker C, Lefroy D, Bellamy M, Al-Bustami M, Khan M, Gonzalo N, Hughes A, Francis D, Mayet J, Di Mario C, Redwood S, Escaned J, Koo BK, Davies Jet 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

Conference paper

Petraco R, Sen S, Nijjer S, Echavarria-Pinto M, Escaned J, Francis D, Davies Jet 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

Conference paper

Sen S, Asrress K, Nijjer S, Petraco R, Malik I, Mikhail G, Escaned J, Sethi A, Baker C, Foale R, Hughes A, Francis D, Mayet J, Redwood S, Davies Jet al., 2013, Fractional Flow Reserve and The Instant Wave-free Ratio Have Equivalent Agreement with Flow Based Indices Across the Entire Spectrum of Stenosis Severity: Results of CLARIFY (The Classification Accuracy of Pressure-only Ratios Against Indices Using Flow Study)., 18th Angioplasty Summit Transcatheter Cardiovascular Therapeutics Asia Pacific (TCTAP), Publisher: EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC, Pages: 53B-53B, ISSN: 0002-9149

Conference paper

Nijjer SS, Sen S, Petraco R, Cuculi F, Broyd C, Foin N, Foale R, Malik I, Mikhail G, Sethi AS, Kaprielian RR, Baker CS, Hughes AD, Mayet J, Kharbanda RK, Di Mario C, Davies JEet al., 2013, Instantaneous Wave-free Ratio Can Assess Improvement in Coronary Haemodynamics After Percutaneous Intervention., 18th Angioplasty Summit Transcatheter Cardiovascular Therapeutics Asia Pacific (TCTAP), Publisher: EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC, Pages: 100B-100B, ISSN: 0002-9149

Conference paper

Sen S, Petraco R, Nijjer S, Malik I, Mikhail G, Foale R, Sethi A, Escaned J, Hughes A, Francis D, Mayet J, Davies Jet 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

Conference paper

Nijjer SS, Eshtehardi P, Corban MT, Mekonnen G, Gogas B, McDaniel MC, Sen S, Petraco R, Davies JE, Samady Het al., 2013, Resting Coronary Haemodynamics are Stable and Reproducible When Retested After 6 Months in Patients with Non-obstructive Coronary Artery Disease., 18th Angioplasty Summit Transcatheter Cardiovascular Therapeutics Asia Pacific (TCTAP), Publisher: EXCERPTA MEDICA INC-ELSEVIER SCIENCE INC, Pages: 101B-101B, ISSN: 0002-9149

Conference paper

Petraco R, Sen S, Nijjer S, 2013, Fractional flow reserve-guided revascularization: practical implications of a diagnostic gray zone and measurement variability on clinical decisions (vol 6, pg 222, 2013), JACC-CARDIOVASCULAR INTERVENTIONS, Vol: 6, Pages: 431-431, ISSN: 1936-8798

Journal article

Davies JE, Manisty CH, Petraco R, Barron AJ, Unsworth B, Mayet J, Hamady M, Hughes AD, Sever PS, Sobotka PA, Francis DPet al., 2013, First-in-man safety evaluation of renal denervation for chronic systolic heart failure: Primary outcome from REACH-Pilot study, INTERNATIONAL JOURNAL OF CARDIOLOGY, Vol: 162, Pages: 189-192, ISSN: 0167-5273

Journal article

Jabs A, Hink U, Fineschi M, Münzel T, Gori T, Koo B, Petraco R, Sen S, Nijjer S, Davies JEet al., 2013, How should I treat a patient with typical angina, typical angiography, negative FFR?, EuroIntervention: journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology, Vol: 9, Pages: 157-161, ISSN: 1969-6213

Journal article

Sen S, Nijjer S, Petraco R, Malik IS, Francis DP, Davies Jet al., 2013, Instantaneous Wave-Free Ratio, Journal of the American College of Cardiology, Vol: 62, ISSN: 0735-1097

Journal article

Sen S, Escaned J, Petraco R, Nijjer S, Francis DP, Davies JEet al., 2013, Reply, Journal of the American College of Cardiology, Vol: 62, Pages: 943-945, ISSN: 0735-1097

Journal article

Foin N, Mari JM, Nijjer S, Sen S, Petraco R, Ghione M, Di Mario C, Davies JE, Girard MJAet al., 2013, Intracoronary imaging using attenuation-compensated optical coherence tomography allows better visualisation of coronary artery diseases, Cardiovascular revascularization medicine: including molecular interventions, ISSN: 1878-0938

PURPOSE: To allow an accurate diagnosis of coronary artery diseases by enhancing optical coherence tomography (OCT) images of atheromatous plaques using a novel automated attenuation compensation technique. BACKGROUND: One of the major drawbacks of coronary OCT imaging is the rapid attenuation of the OCT signal, limiting penetration in tissue to only few millimetres. Visualisation of deeper anatomy is however critical for accurate assessment of plaque burden in-vivo. METHODS: A compensation algorithm, previously developed to correct for light attenuation in soft tissues and to enhance contrast in ophthalmic OCT images, was applied to intracoronary plaque imaging using spectral-domain OCT. RESULTS: Application of the compensation algorithm significantly increased tissue contrast in the vessel wall and atherosclerotic plaque boundaries. Contrast enhancement allows a better differentiation of plaque morphology, which is particularly important for the identification of lipid rich fibro atheromatous plaques and to guide decision on treatment strategy. CONCLUSION: The analysis of arterial vessel structure clinically captured with OCT is improved when used in conjunction with automated attenuation compensation. This approach may improve the OCT-based interpretation of coronary plaque morphology in clinical practice.

Journal article

Sen S, Petraco R, Nijjer S, Foale R, Malik I, Mikail G, Hughes A, Escaned J, francis D, Mayet J, Davies Jet 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, ISSN: 0735-1097

Conference paper

Sen S, Nijjer S, Petraco R, Foale R, Malik I, Mikail G, Hughes A, Escaned J, Francis D, Mayet J, Davies Jet al., 2013, THE EFFECT OF ADENOSINE ON CORONARY MICROVASCULAR RESISTANCE IS MORE CONSISTENT DURING THE DIASTOLIC WAVE–FREE PERIOD: SHOULD WE CONTINUE TO USE THE COMPLETE CARDIAC CYCLE FOR STENOSIS ASSESSMENT?, ISSN: 0735-1097

Conference paper

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