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Rijnierse MT, Allaart CP, Knaapen P. Principles and techniques of imaging in identifying the substrate of ventricular arrhythmia. J Nucl Cardiol 2016; 23:218-34. [PMID: 26667814 PMCID: PMC4785206 DOI: 10.1007/s12350-015-0344-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 11/10/2015] [Indexed: 01/26/2023]
Abstract
Life-threatening ventricular arrhythmias (VA) are a major cause of death in patients with cardiomyopathy. To date, impaired left ventricular ejection fraction remains the primary criterion for implantable cardioverter-defibrillator therapy to prevent sudden cardiac death. In recent years, however, advanced imaging techniques such as nuclear imaging, cardiac magnetic resonance imaging, and computed tomography have allowed for a more detailed evaluation of the underlying substrate of VA. These imaging modalities have emerged as a promising approach to assess the risk of sudden cardiac death. In addition, non-invasive identification of the critical sites of arrhythmias may guide ablation therapy. Typical anatomical substrates that can be evaluated by multiple advanced imaging techniques include perfusion abnormalities, scar and its border zone, and sympathetic denervation. Understanding the principles and techniques of different imaging modalities is essential to gain more insight in their role in identifying the arrhythmic substrate. The current review describes the principles of currently available imaging techniques to identify the substrate of VA.
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Affiliation(s)
- Mischa T Rijnierse
- Department of Cardiology and Institute for Cardiovascular Research (IcaR-VU), VU University Medical Center, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands
| | - Cornelis P Allaart
- Department of Cardiology and Institute for Cardiovascular Research (IcaR-VU), VU University Medical Center, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands
| | - Paul Knaapen
- Department of Cardiology and Institute for Cardiovascular Research (IcaR-VU), VU University Medical Center, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands.
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Abstract
Determination of ventricular arrhythmic risk is crucial for guiding management of cardiac disease. Although for patients at increased risk an implantable cardioverter-defibrillator is recommended, it is widely acknowledged that current criteria for device use based predominantly on left ventricular ejection fraction are deficient. Genesis of ventricular arrhythmias involves a complex interaction of myocardial substrate abnormalities, precipitating triggers, and modulating factors. There are much data showing that by more directly assessing these factors, noninvasive imaging using echocardiography, radionuclide imaging, and cardiac magnetic resonance enhances arrhythmic risk stratification beyond ejection fraction and commonly used electrocardiographic and serum biomarkers. It is anticipated that further technological advancements studied in well-designed clinical trials will provide both more precise determination of risk and guide therapies to enhanced survival and patient well-being.
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Affiliation(s)
- Mark I Travin
- From the Division of Nuclear Medicine, Department of Radiology (M.I.T.) and Division of Cardiology, Department of Medicine (C.C.T), Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; and Metropolitan Heart and Vascular Institute, Minneapolis, MN (D.F.).
| | - DaLi Feng
- From the Division of Nuclear Medicine, Department of Radiology (M.I.T.) and Division of Cardiology, Department of Medicine (C.C.T), Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; and Metropolitan Heart and Vascular Institute, Minneapolis, MN (D.F.)
| | - Cynthia C Taub
- From the Division of Nuclear Medicine, Department of Radiology (M.I.T.) and Division of Cardiology, Department of Medicine (C.C.T), Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY; and Metropolitan Heart and Vascular Institute, Minneapolis, MN (D.F.)
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53
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Duell J, Dilsizian V, Smith M, Chen W, Dickfeld T. Nuclear Imaging Guidance for Ablation of Ventricular Arrhythmias. Curr Cardiol Rep 2016; 18:19. [DOI: 10.1007/s11886-015-0697-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Peix A, Cabrera LO, Padrón K. Nuclear Cardiology in the Management of Patients with Heart Failure. CURRENT CARDIOVASCULAR IMAGING REPORTS 2015. [DOI: 10.1007/s12410-015-9363-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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55
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Krul SPJ, Berger WR, Veldkamp MW, Driessen AHG, Wilde AAM, Deneke T, de Bakker JMT, Coronel R, de Groot JR. Treatment of Atrial and Ventricular Arrhythmias Through Autonomic Modulation. JACC Clin Electrophysiol 2015; 1:496-508. [PMID: 29759403 DOI: 10.1016/j.jacep.2015.09.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 08/19/2015] [Accepted: 09/24/2015] [Indexed: 11/26/2022]
Abstract
This paper reviews the contribution of autonomic nervous system (ANS) modulation in the treatment of arrhythmias. Both the atria and ventricles are innervated by an extensive network of nerve fibers of parasympathetic and sympathetic origin. Both the parasympathetic and sympathetic nervous system exert arrhythmogenic electrophysiological effects on atrial and pulmonary vein myocardium, while in the ventricle the sympathetic nervous system plays a more dominant role in arrhythmogenesis. Identification of ANS activity is possible with nuclear imaging. This technique may provide further insight in mechanisms and treatment targets. Additionally, the myocardial effects of the intrinsic ANS can be identified through stimulation of the ganglionic plexuses. These can be ablated for the treatment of atrial fibrillation. New (non-) invasive treatment options targeting the extrinsic cardiac ANS, such as low-level tragus stimulation and renal denervation, provide interesting future treatment possibilities both for atrial fibrillation and ventricular arrhythmias. However, the first randomized trials have yet to be performed. Future clinical studies on modifying the ANS may not only improve the outcome of ablation therapy but may also advance our understanding of the manner in which the ANS interacts with the myocardium to modify arrhythmogenic triggers and substrate.
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Affiliation(s)
- Sébastien P J Krul
- Heart Center, Department of Clinical and Experimental Cardiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Wouter R Berger
- Heart Center, Department of Clinical and Experimental Cardiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Marieke W Veldkamp
- Heart Center, Department of Clinical and Experimental Cardiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Antoine H G Driessen
- Heart Center, Department of Clinical and Experimental Cardiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Arthur A M Wilde
- Heart Center, Department of Clinical and Experimental Cardiology, Academic Medical Center, Amsterdam, the Netherlands; Princess Al-Jawhara Al-Brahim Centre of Excellence in Research of Hereditary Disorders, Jeddah, Kingdom of Saudi Arabia
| | - Thomas Deneke
- Heart Center Bad Neustadt, Bad Neustadt a.d. Saale, Germany
| | - Jacques M T de Bakker
- Heart Center, Department of Clinical and Experimental Cardiology, Academic Medical Center, Amsterdam, the Netherlands; Interuniversity Cardiology Institute of the Netherlands, Utrecht, the Netherlands
| | - Ruben Coronel
- Heart Center, Department of Clinical and Experimental Cardiology, Academic Medical Center, Amsterdam, the Netherlands; L'Institut de RYthmologie et de modélisation Cardiaque (LIRYC), Université Bordeaux Segalen, Bordeaux, France
| | - Joris R de Groot
- Heart Center, Department of Clinical and Experimental Cardiology, Academic Medical Center, Amsterdam, the Netherlands.
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Dilsizian V, Eckelman WC. Myocardial Blood Flow and Innervation Measures from a Single Scan: An Appealing Concept but a Challenging Paradigm. J Nucl Med 2015; 56:1645-6. [PMID: 26315831 DOI: 10.2967/jnumed.115.164251] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 08/06/2015] [Indexed: 11/16/2022] Open
Affiliation(s)
- Vasken Dilsizian
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland; and
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Dimitriu-Leen AC, Scholte AJHA, Jacobson AF. 123I-MIBG SPECT for Evaluation of Patients with Heart Failure. J Nucl Med 2015; 56 Suppl 4:25S-30S. [PMID: 26033900 DOI: 10.2967/jnumed.115.157503] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Heart failure (HF) is characterized by activation of the sympathetic cardiac nerves. The condition of cardiac sympathetic nerves can be evaluated by (123)I-metaiodobenzylguanidine ((123)I-MIBG) imaging. Most cardiac (123)I-MIBG studies have relied on measurements from anterior planar images of the chest. However, it has become progressively more common to include SPECT imaging in clinical and research protocols. This review examines recent trends in (123)I-MIBG SPECT imaging and evidence that provides the basis for the increased use of the procedure in the clinical management of patients with HF. (123)I-MIBG SPECT has been shown to be complementary to planar imaging in patients with HF in studies of coronary artery disease after an acute myocardial infarction. Moreover, (123)I-MIBG SPECT has been used in numerous studies to document regional denervation for arrhythmic event risk assessment. For better quantification of the size and severity of innervation abnormalities in (123)I-MIBG SPECT, programs and protocols specifically for (123)I have been developed. Also, the introduction of new solid-state cameras has created the potential for more rapid SPECT acquisitions or a reduction in radiopharmaceutical activity. Although PET imaging has superior quantitative capabilities, (123)I-MIBG SPECT is, for the foreseeable future, the only widely available nuclear imaging method for assessing regional myocardial sympathetic innervation.
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Affiliation(s)
| | - Arthur J H A Scholte
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands; and
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Dilsizian V, Narula J. Have imagers aptly or inadvertently overlooked the neuronal myocardial compartment? J Nucl Med 2015; 56 Suppl 4:1S-2S. [PMID: 26033898 DOI: 10.2967/jnumed.114.142810] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Vasken Dilsizian
- University of Maryland School of Medicine, Baltimore, Maryland; and
| | - Jagat Narula
- Icahn School of Medicine at Mount Sinai, New York, New York
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Aggarwal NR, Chareonthaitawee P. 123I-meta-iodobenzylguanidine guanidine-guided ventricular tachycardia ablation: will expanding the target improve the aim? Circ Arrhythm Electrophysiol 2015; 8:520-2. [PMID: 26082523 DOI: 10.1161/circep.115.002905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Niti R Aggarwal
- From the Division of Cardiovascular Diseases, Department of Medicine, Mayo Clinic, Rochester, MN
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Abdulghani M, Duell J, Smith M, Chen W, Bentzen SM, Asoglu R, Klein T, Bob-Manuel T, Saliaris A, See V, Shorofsky S, Dilsizian V, Dickfeld T. Global and Regional Myocardial Innervation Before and After Ablation of Drug-Refractory Ventricular Tachycardia Assessed with 123I-MIBG. J Nucl Med 2015; 56 Suppl 4:52S-58S. [DOI: 10.2967/jnumed.115.155143] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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61
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AlJaroudi WA, Einstein AJ, Chaudhry FA, Lloyd SG, Hage FG. Multi-modality imaging: Bird's-eye view from the 2014 American Heart Association Scientific Sessions. J Nucl Cardiol 2015; 22:364-71. [PMID: 25698480 DOI: 10.1007/s12350-015-0076-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Accepted: 01/04/2015] [Indexed: 10/24/2022]
Abstract
A large number of studies were presented at the 2014 American Heart Association Scientific Sessions. In this review, we will summarize key studies in nuclear cardiology, computed tomography, echocardiography, and cardiac magnetic resonance imaging. This brief review will be helpful for readers of the Journal who are interested in being updated on the latest research covering these imaging modalities.
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