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Porcari A, De Angelis G, Romani S, Paldino A, Artico J, Cannatà A, Gentile P, Pinamonti B, Merlo M, Sinagra G. Current diagnostic strategies for dilated cardiomyopathy: a comparison of imaging techniques. Expert Rev Cardiovasc Ther 2018; 17:53-63. [DOI: 10.1080/14779072.2019.1550719] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Aldostefano Porcari
- Cardiovascular Department, Università degli Studi di Trieste, Trieste, Italy
| | - Giulia De Angelis
- Cardiovascular Department, Università degli Studi di Trieste, Trieste, Italy
| | - Simona Romani
- Cardiovascular Department, Università degli Studi di Trieste, Trieste, Italy
| | - Alessia Paldino
- Cardiovascular Department, Università degli Studi di Trieste, Trieste, Italy
| | - Jessica Artico
- Cardiovascular Department, Università degli Studi di Trieste, Trieste, Italy
| | - Antonio Cannatà
- Cardiovascular Department, Università degli Studi di Trieste, Trieste, Italy
| | - Piero Gentile
- Cardiovascular Department, Università degli Studi di Trieste, Trieste, Italy
| | - Bruno Pinamonti
- Cardiovascular Department, Università degli Studi di Trieste, Trieste, Italy
| | - Marco Merlo
- Cardiovascular Department, Università degli Studi di Trieste, Trieste, Italy
| | - Gianfranco Sinagra
- Cardiovascular Department, Università degli Studi di Trieste, Trieste, Italy
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102
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Affiliation(s)
- Christopher M. Kramer
- Departments of Medicine and Radiology and the Cardiovascular Imaging CenterUniversity of Virginia Health SystemCharlottesvilleVA
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103
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Mohamed A, Lewandowski AJ, Huckstep O, Leeson P. Can diet influence cardiac geometry and function in young adults? Eur J Prev Cardiol 2018; 25:1585-1586. [PMID: 30152243 DOI: 10.1177/2047487318796292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Afifah Mohamed
- Oxford Cardiovascular Clinical Research Facility, University of Oxford, UK
| | - Adam J Lewandowski
- Oxford Cardiovascular Clinical Research Facility, University of Oxford, UK
| | - Odaro Huckstep
- Oxford Cardiovascular Clinical Research Facility, University of Oxford, UK
| | - Paul Leeson
- Oxford Cardiovascular Clinical Research Facility, University of Oxford, UK
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104
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Shaw JL, Nelson MD, Wei J, Motwani M, Landes S, Mehta PK, Thomson LEJ, Berman DS, Li D, Bairey Merz CN, Sharif B. Inverse association of MRI-derived native myocardial T1 and perfusion reserve index in women with evidence of ischemia and no obstructive CAD: A pilot study. Int J Cardiol 2018; 270:48-53. [PMID: 30041981 DOI: 10.1016/j.ijcard.2018.06.086] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 06/13/2018] [Accepted: 06/19/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND It has recently been shown that magnetic resonance (MR) "native T1" mapping is capable of characterizing abnormal microcirculation in patients with obstructive coronary artery disease (CAD). In studies involving women with signs and symptoms of ischemia and no obstructive CAD (INOCA), however, the potential role of native T1 as an imaging marker and its association with indices of diastolic function or vasodilator-induced myocardial ischemia have not been explored. We investigated whether native T1 in INOCA is associated with reduced myocardial perfusion reserve index (MPRI) or with diastolic dysfunction. METHODS Twenty-two female patients with INOCA and twelve female reference controls with matching age and body-mass index were studied. The patients had evidence of vasodilator-induced ischemia without obstructive CAD or any prior infarction. All 34 subjects underwent stress/rest MR including native T1 mapping (MOLLI 5(3)3) at 1.5-Tesla. RESULTS Compared with controls, patients had similar morphology/function. As expected, MPRI was significantly reduced in patients compared to controls (1.78 ± 0.39 vs. 2.49 ± 0.41, p < 0.0001). Native T1 was significantly elevated in patients (1040.1 ± 29.3 ms vs. 1003.8 ± 18.5 ms, p < 0.001) and the increased T1 showed a significant inverse correlation with MPRI (r = -0.481, p = 0.004), but was not correlated with reduced diastolic strain rate. CONCLUSIONS Symptomatic women with INOCA have elevated native T1 compared to matched reference controls and there is a significant association between elevated native T1 and impaired MPRI, considered a surrogate measure of ischemia severity in this cohort. Future studies in a larger cohort are needed to elucidate the mechanism underlying this inverse relationship.
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Affiliation(s)
- Jaime L Shaw
- Biomedical Imaging Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States; Department of Bioengineering, University of California Los Angeles, CA, United States
| | - Michael D Nelson
- Biomedical Imaging Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States; Women's Heart Center, Cedars-Sinai Heart Institute, Los Angeles, CA, United States
| | - Janet Wei
- Biomedical Imaging Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States; Women's Heart Center, Cedars-Sinai Heart Institute, Los Angeles, CA, United States
| | - Manish Motwani
- Department of Imaging, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Sofy Landes
- Women's Heart Center, Cedars-Sinai Heart Institute, Los Angeles, CA, United States
| | - Puja K Mehta
- Women's Heart Center, Cedars-Sinai Heart Institute, Los Angeles, CA, United States
| | - Louise E J Thomson
- Women's Heart Center, Cedars-Sinai Heart Institute, Los Angeles, CA, United States; Department of Imaging, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Daniel S Berman
- Biomedical Imaging Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States; Department of Imaging, Cedars-Sinai Medical Center, Los Angeles, CA, United States; David Geffen School of Medicine, University of California Los Angeles, CA, United States
| | - Debiao Li
- Biomedical Imaging Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States; Department of Bioengineering, University of California Los Angeles, CA, United States; David Geffen School of Medicine, University of California Los Angeles, CA, United States
| | - C Noel Bairey Merz
- Women's Heart Center, Cedars-Sinai Heart Institute, Los Angeles, CA, United States; David Geffen School of Medicine, University of California Los Angeles, CA, United States
| | - Behzad Sharif
- Biomedical Imaging Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States; Department of Bioengineering, University of California Los Angeles, CA, United States; David Geffen School of Medicine, University of California Los Angeles, CA, United States.
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105
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Timm KN, Miller JJ, Henry JA, Tyler DJ. Cardiac applications of hyperpolarised magnetic resonance. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2018; 106-107:66-87. [PMID: 31047602 DOI: 10.1016/j.pnmrs.2018.05.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 05/14/2018] [Accepted: 05/29/2018] [Indexed: 05/05/2023]
Abstract
Cardiovascular disease is the leading cause of death world-wide. It is increasingly recognised that cardiac pathologies show, or may even be caused by, changes in metabolism, leading to impaired cardiac energetics. The heart turns over 15 times its own weight in ATP every day and thus relies heavily on the availability of substrates and on efficient oxidation to generate this ATP. A number of old and emerging drugs that target different aspects of metabolism are showing promising results with regard to improved cardiac outcomes in patients. A non-invasive imaging technique that could assess the role of different aspects of metabolism in heart disease, as well as measure changes in cardiac energetics due to treatment, would be valuable in the routine clinical care of cardiac patients. Hyperpolarised magnetic resonance spectroscopy and imaging have revolutionised metabolic imaging, allowing real-time metabolic flux assessment in vivo for the first time. In this review we summarise metabolism in the healthy and diseased heart, give an introduction to the hyperpolarisation technique, 'dynamic nuclear polarisation' (DNP), and review the preclinical studies that have thus far explored healthy cardiac metabolism and different models of human heart disease. We furthermore show what advances have been made to translate this technique into the clinic, what technical challenges still remain and what unmet clinical needs and unexplored metabolic substrates still need to be assessed by researchers in this exciting and fast-moving field.
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Affiliation(s)
- Kerstin N Timm
- Department of Physiology, Anatomy and Genetics, University of Oxford, UK.
| | - Jack J Miller
- Department of Physiology, Anatomy and Genetics, University of Oxford, UK; Oxford Centre for Clinical Magnetic Resonance Research, John Radcliffe Hospital, Oxford, UK; Clarendon Laboratory, Department of Physics, University of Oxford, UK.
| | - John A Henry
- Department of Physiology, Anatomy and Genetics, University of Oxford, UK.
| | - Damian J Tyler
- Department of Physiology, Anatomy and Genetics, University of Oxford, UK; Oxford Centre for Clinical Magnetic Resonance Research, John Radcliffe Hospital, Oxford, UK.
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106
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Barreiro-Pérez M, Tundidor-Sanz E, Martín-García A, Díaz-Peláez E, Íscar-Galán A, Merchán-Gómez S, Gallego-Delgado M, Jiménez-Candil J, Cruz-González I, Sánchez PL. Primera resonancia magnética gestionada por cardiología en la red sanitaria pública española: experiencia y dificultades de un modelo innovador. Rev Esp Cardiol 2018. [DOI: 10.1016/j.recesp.2017.11.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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107
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Antonini-Canterin F, Faganello G, Mantero A, Citro R, Colonna P, Giorgi M, Manuppelli V, Monte I, Petrella L, Posteraro A, Di Bello V, Carerj S, Benedetto F. Cardiovascular Multimodality Imaging: It is Time to Get on Board! A "Società Italiana di Ecocardiografia e CardioVascular Imaging" Statement. J Cardiovasc Echogr 2018; 28:1-8. [PMID: 29629253 PMCID: PMC5875130 DOI: 10.4103/jcecho.jcecho_66_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Francesco Antonini-Canterin
- Ospedale Riabilitativo di Alta Specializzazione, Unità Operativa di Cardiologia Riabilitativa e Preventiva, Motta di Livenza, Italy
| | - Giorgio Faganello
- Cardiovascular Center, Azienda Sanitaria Universitaria Integrata di Trieste, Trieste, Italy
| | - Antonio Mantero
- Società Italiana di Ecocardiografia e CardioVascular Imaging, Milano, Italy
| | - Rodolfo Citro
- Department of Cardiology, University Hospital 'San Giovanni di Dio e Ruggi d'Aragona', Salerno, Italy
| | - Paolo Colonna
- Department of Cardiology, Hospital Policlinico of Bari, Bari, Italy
| | - Mauro Giorgi
- Department of Torino Cardiovascular, San Giovanni Battista Hospital, Torino, Italy
| | | | - Ines Monte
- Department of General Surgery and Medical-Surgery Specialties, University of Catania, Catania, Italy
| | - Licia Petrella
- Department of Cardiac Surgery, Giuseppe Mazzini Hospital, Teramo, Italy
| | - Alfredo Posteraro
- Medical Department, Cardiology Unit, Presidio Ospedaliero Integrato Portuense, Roma, Italy
| | | | - Scipione Carerj
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Frank Benedetto
- Unità Operativa Complessa, Clinical and Rehabilitation Cardiology, Reggio Calabria, Italy
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108
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Barreiro-Pérez M, Tundidor-Sanz E, Martín-García A, Díaz-Peláez E, Íscar-Galán A, Merchán-Gómez S, Gallego-Delgado M, Jiménez-Candil J, Cruz-González I, Sánchez PL. First Magnetic Resonance Managed by a Cardiology Department in the Spanish Public Healthcare System. Experience and Difficulties of an Innovative Model. ACTA ACUST UNITED AC 2018; 71:365-372. [PMID: 29598851 DOI: 10.1016/j.rec.2018.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 11/24/2017] [Indexed: 01/03/2023]
Abstract
Magnetic resonance (MR) is considered the gold standard in the assessment of myocardial morphology, function, perfusion, and viability. However, its main limitation is its scarce availability. In 2014, we installed the first MR scanner exclusively managed by a cardiology department within the publicly-funded Spanish healthcare system with the aim of improving patient-care, training and research in the department. In the time interval analyzed, July 2014 to May 2017, 3422 cardiac MR scans were performed (32minutes used per study; 96% with good quality; 75% with contrast media administration). The most prevalent clinical indications were cardiomyopathy (29%) and ischemic heart disease (12%). Twenty-five percent of studies were conducted in the context of research protocols. Follow-up studies predominated among outpatients, while pretherapeutic assessment was more common in hospitalized patients. The presumptive diagnosis was changed by cardiac MR scanning in up to 20% of patients investigated for ischemic heart disease. The installation and operative management of an MR scanner in our cardiology department has allowed us to integrate this technique into daily clinical practice, modify our clinical protocols, optimize access to this technology among cardiac patients, improve training, and conduct clinical research.
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Affiliation(s)
- Manuel Barreiro-Pérez
- Servicio de Cardiología, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Medicina, Universidad de Salamanca, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Salamanca, Spain
| | - Elena Tundidor-Sanz
- Servicio de Cardiología, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Medicina, Universidad de Salamanca, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Salamanca, Spain
| | - Ana Martín-García
- Servicio de Cardiología, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Medicina, Universidad de Salamanca, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Salamanca, Spain
| | - Elena Díaz-Peláez
- Servicio de Cardiología, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Medicina, Universidad de Salamanca, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Salamanca, Spain
| | - Alberto Íscar-Galán
- Servicio de Cardiología, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Medicina, Universidad de Salamanca, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Salamanca, Spain
| | - Soraya Merchán-Gómez
- Servicio de Cardiología, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Medicina, Universidad de Salamanca, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Salamanca, Spain
| | - María Gallego-Delgado
- Servicio de Cardiología, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Medicina, Universidad de Salamanca, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Salamanca, Spain
| | - Javier Jiménez-Candil
- Servicio de Cardiología, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Medicina, Universidad de Salamanca, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Salamanca, Spain
| | - Ignacio Cruz-González
- Servicio de Cardiología, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Medicina, Universidad de Salamanca, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Salamanca, Spain
| | - Pedro L Sánchez
- Servicio de Cardiología, Hospital Universitario de Salamanca, Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Medicina, Universidad de Salamanca, Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Salamanca, Spain.
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109
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Lee HJ, Kadbi M, Bosco G, Ibbott GS. Real-time volumetric relative dosimetry for magnetic resonance-image-guided radiation therapy (MR-IGRT). Phys Med Biol 2018; 63:045021. [PMID: 29384731 DOI: 10.1088/1361-6560/aaac22] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The integration of magnetic resonance imaging (MRI) with linear accelerators (linac) has enabled the use of 3D MR-visible gel dosimeters for real-time verification of volumetric dose distributions. Several iron-based radiochromic 3D gels were created in-house then imaged and irradiated in a pre-clinical 1.5 T-7 MV MR-Linac. MR images were acquired using a range of balanced-fast field echo (b-FFE) sequences during irradiation to assess the contrast and dose response in irradiated regions and to minimize the presence of MR artifacts. Out of four radiochromic 3D gel formulations, the FOX 3D gel was found to provide superior MR contrast in the irradiated regions. The FOX gels responded linearly with respect to real-time dose and the signal remained stable post-irradiation for at least 20 min. The response of the FOX gel also was found to be unaffected by the radiofrequency and gradient fields created by the b-FFE sequence during irradiation. A reusable version of the FOX gel was used for b-FFE sequence optimization to reduce artifacts by increasing the number of averages at the expense of temporal resolution. Regardless of the real-time MR sequence used, the FOX 3D gels responded linearly to dose with minimal magnetic field effects due to the strong 1.5 T field or gradient fields present during imaging. These gels can easily be made in-house using non-reusable and reusable formulations depending on the needs of the clinic, and the results of this study encourage further applications of 3D gels for MR-IGRT applications.
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Affiliation(s)
- Hannah J Lee
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States of America. The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, United States of America. The University of Texas MD Anderson Cancer Center, 1400 Pressler Street, Houston, TX 77030, United States of America
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Piechnik SK, Neubauer S, Ferreira VM. State-of-the-art review: stress T1 mapping-technical considerations, pitfalls and emerging clinical applications. MAGMA (NEW YORK, N.Y.) 2018; 31:131-141. [PMID: 28914389 PMCID: PMC5813075 DOI: 10.1007/s10334-017-0649-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/21/2017] [Accepted: 08/24/2017] [Indexed: 01/02/2023]
Abstract
In vivo mapping of the myocardial T1 relaxation time has recently attained wide clinical validation of its potential utility. In this review, we address the basic principles of the T1 mapping techniques, with particular attention to the emerging application of vasodilatory stress agents to interrogate the myocardial microvascular compartment, and differences between commonly used T1 mapping methods when applied in clinical practice.
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Affiliation(s)
- Stefan K Piechnik
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, OX3 9DU, UK.
| | - Stefan Neubauer
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, OX3 9DU, UK
| | - Vanessa M Ferreira
- Oxford Centre for Clinical Magnetic Resonance Research (OCMR), Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, OX3 9DU, UK
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111
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Roghi A, Pedrotti P. The incremental role of cardiac magnetic resonance imaging as diagnostic and prognostic tool in cardiovascular diseases. HEART AND MIND 2018. [DOI: 10.4103/hm.hm_1_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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112
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Nekolla SG, van Marwick S, Schachoff S, Kunze KP, Rischpler C. Cardiovascular PET/MRI: Technical Considerations and Outlook. CURRENT CARDIOVASCULAR IMAGING REPORTS 2017. [DOI: 10.1007/s12410-017-9435-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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