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Peper J, Bots ML, Leiner T, Swaans MJ. Non-invasive Angiographic-based Fractional Flow Reserve: Technical Development, Clinical Implications, and Future Perspectives. Curr Med Sci 2023:10.1007/s11596-023-2751-4. [PMID: 37055655 DOI: 10.1007/s11596-023-2751-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 05/30/2022] [Indexed: 04/15/2023]
Abstract
New non- and less-invasive techniques have been developed to overcome the procedural and operator related burden of the fractional flow reserve (FFR) for the assessment of potentially significant stenosis in the coronary arteries. Virtual FFR-techniques can obviate the need for the additional flow or pressure wires as used for FFR measurements. This review provides an overview of the developments and validation of the virtual FFR-algorithms, states the challenges, discusses the upcoming clinical trials, and postulates the future role of virtual FFR in the clinical practice.
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Affiliation(s)
- Joyce Peper
- Department of Cardiology, St. Antonius Hospital, 3435 CM, Nieuwegein, The Netherlands.
- Department of Radiology, University Medical Center Utrecht, 3508 GA, Utrecht, The Netherlands.
| | - Michiel L Bots
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, 3584 CG, Utrecht, The Netherlands
| | - Tim Leiner
- Department of Radiology, University Medical Center Utrecht, 3508 GA, Utrecht, The Netherlands
| | - Martin J Swaans
- Department of Cardiology, St. Antonius Hospital, 3435 CM, Nieuwegein, The Netherlands
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2
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Tar B, Ágoston A, Üveges Á, Szabó GT, Szűk T, Komócsi A, Czuriga D, Csippa B, Paál G, Kőszegi Z. Pressure- and 3D-Derived Coronary Flow Reserve with Hydrostatic Pressure Correction: Comparison with Intracoronary Doppler Measurements. J Pers Med 2022; 12:jpm12050780. [PMID: 35629202 PMCID: PMC9146986 DOI: 10.3390/jpm12050780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 02/05/2023] Open
Abstract
Purpose: To develop a method of coronary flow reserve (CFR) calculation derived from three-dimensional (3D) coronary angiographic parameters and intracoronary pressure data during fractional flow reserve (FFR) measurement. Methods: Altogether 19 coronary arteries of 16 native and 3 stented vessels were reconstructed in 3D. The measured distal intracoronary pressures were corrected to the hydrostatic pressure based on the height differences between the levels of the vessel orifice and the sensor position. Classical fluid dynamic equations were applied to calculate the flow during the resting state and vasodilatation based on morphological data and intracoronary pressure values. 3D-derived coronary flow reserve (CFRp-3D) was defined as the ratio between the calculated hyperemic and the resting flow and was compared to the CFR values simultaneously measured by the Doppler sensor (CFRDoppler). Results: Haemodynamic calculations using the distal coronary pressures corrected for hydrostatic pressures showed a strong correlation between the individual CFRp-3D values and the CFRDoppler measurements (r = 0.89, p < 0.0001). Hydrostatic pressure correction increased the specificity of the method from 46.1% to 92.3% for predicting an abnormal CFRDoppler < 2. Conclusions: CFRp-3D calculation with hydrostatic pressure correction during FFR measurement facilitates a comprehensive hemodynamic assessment, supporting the complex evaluation of macro-and microvascular coronary artery disease.
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Affiliation(s)
- Balázs Tar
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (B.T.); (A.Á.); (Á.Ü.); (G.T.S.); (T.S.); (D.C.)
- Szabolcs–Szatmár–Bereg County Hospitals, University Teaching Hospital, 4400 Nyíregyháza, Hungary
| | - András Ágoston
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (B.T.); (A.Á.); (Á.Ü.); (G.T.S.); (T.S.); (D.C.)
- Szabolcs–Szatmár–Bereg County Hospitals, University Teaching Hospital, 4400 Nyíregyháza, Hungary
| | - Áron Üveges
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (B.T.); (A.Á.); (Á.Ü.); (G.T.S.); (T.S.); (D.C.)
- Szabolcs–Szatmár–Bereg County Hospitals, University Teaching Hospital, 4400 Nyíregyháza, Hungary
| | - Gábor Tamás Szabó
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (B.T.); (A.Á.); (Á.Ü.); (G.T.S.); (T.S.); (D.C.)
- Institute of Cardiology, University of Debrecen, 4032 Debrecen, Hungary
| | - Tibor Szűk
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (B.T.); (A.Á.); (Á.Ü.); (G.T.S.); (T.S.); (D.C.)
- Institute of Cardiology, University of Debrecen, 4032 Debrecen, Hungary
| | | | - Dániel Czuriga
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (B.T.); (A.Á.); (Á.Ü.); (G.T.S.); (T.S.); (D.C.)
- Institute of Cardiology, University of Debrecen, 4032 Debrecen, Hungary
| | - Benjamin Csippa
- Department of Hydrodynamic Systems, Budapest University of Technology and Economics, 1111 Budapest, Hungary; (B.C.); (G.P.)
| | - György Paál
- Department of Hydrodynamic Systems, Budapest University of Technology and Economics, 1111 Budapest, Hungary; (B.C.); (G.P.)
| | - Zsolt Kőszegi
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (B.T.); (A.Á.); (Á.Ü.); (G.T.S.); (T.S.); (D.C.)
- Szabolcs–Szatmár–Bereg County Hospitals, University Teaching Hospital, 4400 Nyíregyháza, Hungary
- Institute of Cardiology, University of Debrecen, 4032 Debrecen, Hungary
- Correspondence:
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Takahashi T, Shin D, Kuno T, Lee JM, Latib A, Fearon WF, Maehara A, Kobayashi Y. Diagnostic performance of fractional flow reserve derived from coronary angiography, intravascular ultrasound, and optical coherence tomography; a meta-analysis. J Cardiol 2022; 80:1-8. [DOI: 10.1016/j.jjcc.2022.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/06/2022] [Accepted: 02/17/2022] [Indexed: 10/18/2022]
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Terentes-Printzios D, Oikonomou D, Gkini KP, Gardikioti V, Aznaouridis K, Dima I, Tsioufis K, Vlachopoulos C. Angiography-based estimation of coronary physiology: A frame is worth a thousand words. Trends Cardiovasc Med 2021; 32:366-374. [PMID: 34329733 DOI: 10.1016/j.tcm.2021.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/04/2021] [Accepted: 07/21/2021] [Indexed: 02/04/2023]
Abstract
Cumulative evidence has shown that coronary revascularization should be guided by functional significance of coronary lesions. Fractional flow reserve (FFR) is the gold standard for assessment of hemodynamic significance of coronary stenosis and FFR-guided percutaneous coronary intervention has improved clinical outcomes in patients with coronary artery disease. However, limitations of FFR such as increased operational time and cost, requirement of pressure wire and adenosine and technical difficulties have led to significant underutilization of the method in clinical practice. In the last few years, several methods of FFR estimation based on coronary angiography images have emerged to overcome invasive FFR limitations. The common elements of the novel indices include a 3D anatomical reconstruction of coronary vessels by angiographic projections and various approaches to fluid dynamics computation. Angiography-derived FFR methods have shown high diagnostic accuracy compared to invasive FFR. Although there are promising results regarding their prognostic role, large randomized trials evaluating clinical outcomes are lacking. The aim of this review is to present currently available angiography-derived FFR indices and highlight their differences, advantages, disadvantages and potential clinical implications.
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Affiliation(s)
- Dimitrios Terentes-Printzios
- First Department of Cardiology, National and Kapodistrian University of Athens, Medical School, Hippokration Hospital, Athens, Greece.
| | - Dimitrios Oikonomou
- First Department of Cardiology, National and Kapodistrian University of Athens, Medical School, Hippokration Hospital, Athens, Greece
| | - Konstantia-Paraskevi Gkini
- First Department of Cardiology, National and Kapodistrian University of Athens, Medical School, Hippokration Hospital, Athens, Greece
| | - Vasiliki Gardikioti
- First Department of Cardiology, National and Kapodistrian University of Athens, Medical School, Hippokration Hospital, Athens, Greece
| | - Konstantinos Aznaouridis
- First Department of Cardiology, National and Kapodistrian University of Athens, Medical School, Hippokration Hospital, Athens, Greece
| | - Ioanna Dima
- First Department of Cardiology, National and Kapodistrian University of Athens, Medical School, Hippokration Hospital, Athens, Greece
| | - Konstantinos Tsioufis
- First Department of Cardiology, National and Kapodistrian University of Athens, Medical School, Hippokration Hospital, Athens, Greece
| | - Charalambos Vlachopoulos
- First Department of Cardiology, National and Kapodistrian University of Athens, Medical School, Hippokration Hospital, Athens, Greece
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5
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Szabó GT, Üveges Á, Tar B, Ágoston A, Dorj A, Jenei C, Kolozsvári R, Csippa B, Czuriga D, Kőszegi Z. The Holistic Coronary Physiology Display: Calculation of the Flow Separation Index in Vessel-Specific Individual Flow Range during Fractional Flow Reserve Measurement Using 3D Coronary Reconstruction. J Clin Med 2021; 10:jcm10091910. [PMID: 33924961 PMCID: PMC8124623 DOI: 10.3390/jcm10091910] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/19/2021] [Accepted: 04/25/2021] [Indexed: 12/25/2022] Open
Abstract
In order to make optimal decisions on the treatment of atherosclerotic coronary heart disease (CHD), appropriate evaluation is necessary, including both the anatomical and physiological assessment of the coronary arteries. According to current guidelines, a fractional flow reserve (FFR)-based clinical decision is recommended, but coronary flow reserve (CFR) measurements and microvascular evaluation should also be considered in special cases for a detailed exploration of the coronary disease state. We aimed to generate an extended physiological evaluation during routine FFR measurement and define a new pathological flow-related prognostic factor. Fluid dynamic equations were applied to calculate CFR on the basis of the three-dimensional (3D) reconstruction of the invasively acquired coronary angiogram and the measured intracoronary pressure data. A new, potentially robust prognostic parameter of a coronary lesion called the "flow separation index" (FSi), which is thought to detect the pathological flow amount through a stenosis was introduced in a vessel-specific flow range. Correlations between FSi and the clinically established physiological indices (CFR and FFR) were determined. The FSi was calculated in 19 vessels of 16 patients, including data from the pre- and post-stent revascularization treatment of 3 patients. There was no significant correlation between the FSi and the CFR (r = -0.23, p = 0.34); however, there was significant negative correlation between the FSi and the FFR (r = -0.66, p = 0.002). An even stronger correlation was found between the FSi and the ratio of the resting pressure ratio and the FFR (r = 0.92, p < 0.0001). The diagnostic power of the FSi for predicting the FFR value of <0.80, as a gold standard prognostic factor, was tested by receiver operating characteristic analysis. FSi > 0.022 proved to be the cutoff value of the prediction of a pathologically low FFR with a 0.856 area under the curve (95% confidence interval: 0.620 to 0.972). The present flow-pressure-velocity display provides a comprehensive summary of patient-specific pathophysiology in CHD. The consequences of epicardial stenoses can be evaluated together with their complex relations to microvascular conditions. Based on these values, clinical decision-making concerning both pharmacological therapy and percutaneous or surgical revascularization may be more precisely guided.
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Affiliation(s)
- Gábor Tamás Szabó
- Division of Cardiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Móricz Zs. krt. 22, 4032 Debrecen, Hungary; (G.T.S.); (A.D.); (C.J.); (R.K.); (D.C.)
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (Á.Ü.); (B.T.); (A.Á.)
| | - Áron Üveges
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (Á.Ü.); (B.T.); (A.Á.)
- Szabolcs–Szatmár–Bereg County Hospitals and University Teaching Hospital, 4400 Nyíregyháza, Hungary
| | - Balázs Tar
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (Á.Ü.); (B.T.); (A.Á.)
- Szabolcs–Szatmár–Bereg County Hospitals and University Teaching Hospital, 4400 Nyíregyháza, Hungary
| | - András Ágoston
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (Á.Ü.); (B.T.); (A.Á.)
- Szabolcs–Szatmár–Bereg County Hospitals and University Teaching Hospital, 4400 Nyíregyháza, Hungary
| | - Azzaya Dorj
- Division of Cardiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Móricz Zs. krt. 22, 4032 Debrecen, Hungary; (G.T.S.); (A.D.); (C.J.); (R.K.); (D.C.)
| | - Csaba Jenei
- Division of Cardiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Móricz Zs. krt. 22, 4032 Debrecen, Hungary; (G.T.S.); (A.D.); (C.J.); (R.K.); (D.C.)
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (Á.Ü.); (B.T.); (A.Á.)
| | - Rudolf Kolozsvári
- Division of Cardiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Móricz Zs. krt. 22, 4032 Debrecen, Hungary; (G.T.S.); (A.D.); (C.J.); (R.K.); (D.C.)
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (Á.Ü.); (B.T.); (A.Á.)
| | - Benjamin Csippa
- Department of Hydrodynamic Systems, Budapest University of Technology and Economics, 1111 Budapest, Hungary;
| | - Dániel Czuriga
- Division of Cardiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Móricz Zs. krt. 22, 4032 Debrecen, Hungary; (G.T.S.); (A.D.); (C.J.); (R.K.); (D.C.)
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (Á.Ü.); (B.T.); (A.Á.)
| | - Zsolt Kőszegi
- Division of Cardiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Móricz Zs. krt. 22, 4032 Debrecen, Hungary; (G.T.S.); (A.D.); (C.J.); (R.K.); (D.C.)
- Kálmán Laki Doctoral School of Biomedical and Clinical Sciences, University of Debrecen, 4032 Debrecen, Hungary; (Á.Ü.); (B.T.); (A.Á.)
- Szabolcs–Szatmár–Bereg County Hospitals and University Teaching Hospital, 4400 Nyíregyháza, Hungary
- Correspondence: ; Tel./Fax: +36-52-255928
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Haley HA, Ghobrial M, Morris PD, Gosling R, Williams G, Mills MT, Newman T, Rammohan V, Pederzani G, Lawford PV, Hose R, Gunn JP. Virtual (Computed) Fractional Flow Reserve: Future Role in Acute Coronary Syndromes. Front Cardiovasc Med 2021; 8:735008. [PMID: 34746253 PMCID: PMC8569111 DOI: 10.3389/fcvm.2021.735008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/22/2021] [Indexed: 12/17/2022] Open
Abstract
The current management of acute coronary syndromes (ACS) is with an invasive strategy to guide treatment. However, identifying the lesions which are physiologically significant can be challenging. Non-invasive imaging is generally not appropriate or timely in the acute setting, so the decision is generally based upon visual assessment of the angiogram, supplemented in a small minority by invasive pressure wire studies using fractional flow reserve (FFR) or related indices. Whilst pressure wire usage is slowly increasing, it is not feasible in many vessels, patients and situations. Limited evidence for the use of FFR in non-ST elevation (NSTE) ACS suggests a 25% change in management, compared with traditional assessment, with a shift from more to less extensive revascularisation. Virtual (computed) FFR (vFFR), which uses a 3D model of the coronary arteries constructed from the invasive angiogram, and application of the physical laws of fluid flow, has the potential to be used more widely in this situation. It is less invasive, fast and can be integrated into catheter laboratory software. For severe lesions, or mild disease, it is probably not required, but it could improve the management of moderate disease in 'real time' for patients with non-ST elevation acute coronary syndromes (NSTE-ACS), and in bystander disease in ST elevation myocardial infarction. Its practicability and impact in the acute setting need to be tested, but the underpinning science and potential benefits for rapid and streamlined decision-making are enticing.
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Affiliation(s)
- Hazel Arfah Haley
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
- Sheffield Teaching Hospitals National Health Service Foundation Trust, Sheffield, United Kingdom
| | - Mina Ghobrial
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
| | - Paul D. Morris
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
- Sheffield Teaching Hospitals National Health Service Foundation Trust, Sheffield, United Kingdom
| | - Rebecca Gosling
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
| | - Gareth Williams
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
| | - Mark T. Mills
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Sheffield Teaching Hospitals National Health Service Foundation Trust, Sheffield, United Kingdom
| | - Tom Newman
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Sheffield Teaching Hospitals National Health Service Foundation Trust, Sheffield, United Kingdom
| | - Vignesh Rammohan
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
| | - Giulia Pederzani
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
| | - Patricia V. Lawford
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
| | - Rodney Hose
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
| | - Julian P. Gunn
- Department of Infection Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
- Sheffield Teaching Hospitals National Health Service Foundation Trust, Sheffield, United Kingdom
- *Correspondence: Julian P. Gunn
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Tar B, Jenei C, Üveges Á, Szabó GT, Ágoston A, Dézsi CA, Komócsi A, Czuriga D, Juhász A, Kőszegi Z. Hyperemic contrast velocity assessment improves accuracy of the image-based fractional flow reserve calculation. Cardiol J 2020; 28:163-165. [PMID: 33140387 DOI: 10.5603/cj.a2020.0144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/13/2020] [Indexed: 11/25/2022] Open
Affiliation(s)
- Balázs Tar
- III. Department of Internal Medicine, Szabolcs - Szatmár - Bereg County Hospitals and University Teaching Hospital, Szent István út 68., 4400 Nyíregyháza, Hungary
| | - Csaba Jenei
- Institute of Cardiology, University of Debrecen Medical Center, Móricz Zs. krt. 22., 4032 Debrecen, Hungary
| | - Áron Üveges
- Institute of Cardiology, University of Debrecen Medical Center, Móricz Zs. krt. 22., 4032 Debrecen, Hungary
| | - Gábor Tamás Szabó
- Institute of Cardiology, University of Debrecen Medical Center, Móricz Zs. krt. 22., 4032 Debrecen, Hungary
| | - András Ágoston
- III. Department of Internal Medicine, Szabolcs - Szatmár - Bereg County Hospitals and University Teaching Hospital, Szent István út 68., 4400 Nyíregyháza, Hungary
| | | | - András Komócsi
- Heart Institute, Medical School, University of Pécs, Pécs, Hungary
| | - Dániel Czuriga
- Institute of Cardiology, University of Debrecen Medical Center, Móricz Zs. krt. 22., 4032 Debrecen, Hungary
| | - Attila Juhász
- GE Healthcare Limited, Pharmaceutical Diagnostics, Pollards Wood, United Kingdom
| | - Zsolt Kőszegi
- Institute of Cardiology, University of Debrecen Medical Center, Móricz Zs. krt. 22., 4032 Debrecen, Hungary.
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Wong CCY, Yong ASC. Flash-forward: the emergence of angiography-derived fractional flow reserve in the catheter laboratory. Cardiovasc Res 2020; 116:1242-1245. [PMID: 32016381 DOI: 10.1093/cvr/cvaa015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Christopher C Y Wong
- Department of Cardiology, Concord Hospital, University of Sydney, Hospital Road, Concord, NSW 2139, Australia
| | - Andy S C Yong
- Department of Cardiology, Concord Hospital, University of Sydney, Hospital Road, Concord, NSW 2139, Australia.,Faculty of Medicine and Health Sciences, Macquarie University, Level 1, 75 Talavera Road, Macquarie Park, NSW 2113, Australia
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Computerised Methodologies for Non-Invasive Angiography-Derived Fractional Flow Reserve Assessment: A Critical Review. J Interv Cardiol 2020; 2020:6381637. [PMID: 32395091 PMCID: PMC7189319 DOI: 10.1155/2020/6381637] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 02/21/2020] [Indexed: 02/06/2023] Open
Abstract
Fractional flow reserve is the gold standard for assessing the haemodynamic significance of intermediate coronary artery stenoses. Cumulative evidence has shown that FFR-guided revascularisation reduces stent implantations and improves patient outcomes. However, despite the wealth of evidence and guideline recommendations, its use in clinical practice remains minimal. Patient and technical limitations of FFR as well as the need for intracoronary instrumentation, use of adenosine, and increased costs have limited FFR's applicability in clinical practice. Over the last decade, several angiography-derived FFR software packages have been developed which do not require intracoronary pressure assessment with a guidewire or need for administration of hyperaemic agents. At present, there are 3 commercially available software packages and several other non-commercial technologies that have been described in the literature. These technologies have been validated against invasive FFR showing good accuracy and correlation. However, the methodology behind these solutions is different—some algorithms are based on solving the governing equations of fluid dynamics such as the Navier–Stokes equation while others have opted for a more simplified mathematical formula approach. The aim of this review is to critically appraise the methodology behind all the known angiography-derived FFR technologies highlighting the key differences and limitations.
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Fearon WF, Achenbach S, Engstrom T, Assali A, Shlofmitz R, Jeremias A, Fournier S, Kirtane AJ, Kornowski R, Greenberg G, Jubeh R, Kolansky DM, McAndrew T, Dressler O, Maehara A, Matsumura M, Leon MB, De Bruyne B. Accuracy of Fractional Flow Reserve Derived From Coronary Angiography. Circulation 2019; 139:477-484. [PMID: 30586699 DOI: 10.1161/circulationaha.118.037350] [Citation(s) in RCA: 132] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Measuring fractional flow reserve (FFR) with a pressure wire remains underutilized because of the invasiveness of guide wire placement or the need for a hyperemic stimulus. FFR derived from routine coronary angiography (FFRangio) eliminates both of these requirements and displays FFR values of the entire coronary tree. The FFRangio Accuracy versus Standard FFR (FAST-FFR) study is a prospective, multicenter, international trial with the primary goal of determining the accuracy of FFRangio. METHODS Coronary angiography was performed in a routine fashion in patients with suspected coronary artery disease. FFR was measured in vessels with coronary lesions of varying severity using a coronary pressure wire and hyperemic stimulus. Based on angiograms of the respective arteries acquired in ≥2 different projections, on-site operators blinded to FFR then calculated FFRangio using proprietary software. Coprimary end points were the sensitivity and specificity of the dichotomously scored FFRangio for predicting pressure wire-derived FFR using a cutoff value of 0.80. The study was powered to meet prespecified performance goals for sensitivity and specificity. RESULTS Ten centers in the United States, Europe, and Israel enrolled a total of 301 subjects and 319 vessels meeting inclusion/exclusion criteria which were included in the final analysis. The mean FFR was 0.81 and 43% of vessels had an FFR≤0.80. The per-vessel sensitivity and specificity were 94% (95% CI, 88% to 97%) and 91% (86% to 95%), respectively, both of which exceeded the prespecified performance goals. The diagnostic accuracy of FFRangio was 92% overall and remained high when only considering FFR values between 0.75 to 0.85 (87%). FFRangio values correlated well with FFR measurements ( r=0.80, P<0.001) and the Bland-Altman 95% confidence limits were between -0.14 and 0.12. The device success rate for FFRangio was 99%. CONCLUSIONS FFRangio measured from the coronary angiogram alone has a high sensitivity, specificity, and accuracy compared with pressure wire-derived FFR. FFRangio has the promise to substantially increase physiological coronary lesion assessment in the catheterization laboratory, thereby potentially leading to improved patient outcomes. CLINICAL TRIAL REGISTRATION URL: https://www.clinicaltrials.gov . Unique Identifier: NCT03226262.
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Affiliation(s)
- William F Fearon
- Division of Cardiovascular Medicine and Stanford Cardiovascular Institute, Stanford University School of Medicine, CA (W.F.F.)
| | - Stephan Achenbach
- Department of Cardiology, Friedrich-Alexander University Erlangen-Nürnberg, Germany (S.A.)
| | - Thomas Engstrom
- The Heart Center, Rigs Hospital, University of Copenhagen, Denmark (T.E.)
| | - Abid Assali
- Department of Cardiology, Rabin Medical Center, Petach Tikva, Israel (A.A., R.K.)
| | - Richard Shlofmitz
- Department of Cardiology, St. Francis Hospital, Roslyn, NY (R.S., A.J.)
| | - Allen Jeremias
- Department of Cardiology, St. Francis Hospital, Roslyn, NY (R.S., A.J.)
| | - Stephane Fournier
- Department of Cardiology, Cardiovascular Center Aalst OLV Hospital, Belgium (S.F., B.D.B.)
| | - Ajay J Kirtane
- Columbia University Medical Center (A.J.K., A.M., M.B.L.), New York, NY.,Cardiovascular Research Foundation (A.J.K., A.M., M.B.L., T.M., O.D., M.M.), New York, NY
| | - Ran Kornowski
- Department of Cardiology, Rabin Medical Center, Petach Tikva, Israel (A.A., R.K.)
| | - Gabriel Greenberg
- Department of Cardiology, HaSharon Medical Center, Petach Tikva, Israel (G.G.)
| | - Rami Jubeh
- Department of Cardiology, Shaare Zedek Medical Center, Jerusalem, Israel (R.J.)
| | - Daniel M Kolansky
- Division of Cardiovascular Medicine, University of Pennsylvania School of Medicine, Philadelphia (D.M.K.)
| | - Thomas McAndrew
- Cardiovascular Research Foundation (A.J.K., A.M., M.B.L., T.M., O.D., M.M.), New York, NY
| | - Ovidiu Dressler
- Cardiovascular Research Foundation (A.J.K., A.M., M.B.L., T.M., O.D., M.M.), New York, NY
| | - Akiko Maehara
- Columbia University Medical Center (A.J.K., A.M., M.B.L.), New York, NY.,Cardiovascular Research Foundation (A.J.K., A.M., M.B.L., T.M., O.D., M.M.), New York, NY
| | - Mitsuaki Matsumura
- Cardiovascular Research Foundation (A.J.K., A.M., M.B.L., T.M., O.D., M.M.), New York, NY
| | - Martin B Leon
- Columbia University Medical Center (A.J.K., A.M., M.B.L.), New York, NY.,Cardiovascular Research Foundation (A.J.K., A.M., M.B.L., T.M., O.D., M.M.), New York, NY
| | - Bernard De Bruyne
- Department of Cardiology, Cardiovascular Center Aalst OLV Hospital, Belgium (S.F., B.D.B.)
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11
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Collet C, Onuma Y, Sonck J, Asano T, Vandeloo B, Kornowski R, Tu S, Westra J, Holm NR, Xu B, de Winter RJ, Tijssen JG, Miyazaki Y, Katagiri Y, Tenekecioglu E, Modolo R, Chichareon P, Cosyns B, Schoors D, Roosens B, Lochy S, Argacha JF, van Rosendael A, Bax J, Reiber JHC, Escaned J, De Bruyne B, Wijns W, Serruys PW. Diagnostic performance of angiography-derived fractional flow reserve: a systematic review and Bayesian meta-analysis. Eur Heart J 2018; 39:3314-3321. [DOI: 10.1093/eurheartj/ehy445] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 07/31/2018] [Indexed: 01/09/2023] Open
Affiliation(s)
- Carlos Collet
- Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Department of Cardiology, Universitair Ziekenhuis Brussel, Brussel, Belgium
| | - Yoshinobu Onuma
- Cardialysis BV, Rotterdam, The Netherlands
- Thoraxcenter, Erasmus MC, Rotterdam, The Netherlands
| | - Jeroen Sonck
- Department of Cardiology, Universitair Ziekenhuis Brussel, Brussel, Belgium
| | - Taku Asano
- Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Bert Vandeloo
- Department of Cardiology, Universitair Ziekenhuis Brussel, Brussel, Belgium
| | - Ran Kornowski
- Cardiology Department, Rabin Medical Center, Belinson Hospital Affiliated to the “Sackler” Faculty of Medicine, Tel Aviv University, Petah Tikva, Israel
| | - Shengxian Tu
- Biomedical Instrument Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jelmer Westra
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Niels R Holm
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Bo Xu
- Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | - Robbert J de Winter
- Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Jan G Tijssen
- Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | | | - Yuki Katagiri
- Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | | | - Rodrigo Modolo
- Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Ply Chichareon
- Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Bernard Cosyns
- Department of Cardiology, Universitair Ziekenhuis Brussel, Brussel, Belgium
| | - Daniel Schoors
- Department of Cardiology, Universitair Ziekenhuis Brussel, Brussel, Belgium
| | - Bram Roosens
- Department of Cardiology, Universitair Ziekenhuis Brussel, Brussel, Belgium
| | - Stijn Lochy
- Department of Cardiology, Universitair Ziekenhuis Brussel, Brussel, Belgium
| | | | | | - Jeroen Bax
- Department of Cardiology, Leiden University Medical Center, The Netherlands
| | - Johan H C Reiber
- Division of Image Processing (LKEB), Department of Radiology, Leiden University Medical Center (LUMC), Leiden, The Netherlands
- Medis Medical Imaging Systems, Leiden, The Netherlands
| | - Javier Escaned
- Hospital Clinico San Carlos IDISSC and Universidad Complutense de Madrid, Madrid, Spain
| | | | - William Wijns
- The Lambe Institute for Translational Medicine and Curam, National University of Ireland, Galway, Saolta University Healthcare Group, Galway, Ireland
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