
Contents
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Introduction Introduction
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RNI of LV Remodeling and Contractility as Predictors of Arrhythmic Risk RNI of LV Remodeling and Contractility as Predictors of Arrhythmic Risk
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LV Volume LV Volume
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Myocardial Scar Myocardial Scar
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LV Dyssynchrony LV Dyssynchrony
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Myocardial Sympathetic Denervation and Arrhythmic Risk Myocardial Sympathetic Denervation and Arrhythmic Risk
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Global Myocardial Uptake and Washout of 123I-MIBG Global Myocardial Uptake and Washout of 123I-MIBG
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Inhomogeneity in Regional Myocardial Sympathetic Innervation Inhomogeneity in Regional Myocardial Sympathetic Innervation
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Nuclear Imaging in Inherited Arrhythmia Syndromes to Assess Arrhythmic Risk Nuclear Imaging in Inherited Arrhythmia Syndromes to Assess Arrhythmic Risk
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RNI CAD to Assess Arrhythmic Risk RNI CAD to Assess Arrhythmic Risk
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Role of RNI to Guide Catheter Ablation of Ventricular Arrhythmia Role of RNI to Guide Catheter Ablation of Ventricular Arrhythmia
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Conclusion Conclusion
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References References
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30. Nuclear Imaging in Patients with Serious Arrhythmias
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Published:January 2024
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Abstract
Identifying patients who are at risk of serious ventricular arrhythmias continues to remain a challenge, and left ventricular ejection fraction has been shown to be an ineffective predictor of arrhythmic events. Cardiac radionuclide imaging has the ability to image not only myocardial perfusion and function but also myocardial dyssynchrony, innervation/denervation, and metabolism, all of which independently and collectively have been shown to enhance arrhythmic risk prediction. Radionuclide imaging can facilitate substrate-based mapping of arrhythmogenic foci and can aid in planning for and facilitating catheter ablation in patients with recurrent ventricular arrhythmias that have been refractory to medical therapy. This chapter reviews the ability of cardiac radionuclide imaging to stratify arrhythmic risk and to guide device and ablation therapies.
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