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Travin MI. Enhancing the utility of radionuclide adrenergic imaging for assessing the risk of sudden arrhythmic cardiac death. J Nucl Cardiol 2024:102022. [PMID: 39159740 DOI: 10.1016/j.nuclcard.2024.102022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2024] [Accepted: 08/12/2024] [Indexed: 08/21/2024]
Affiliation(s)
- Mark I Travin
- From the Division of Nuclear Medicine, Department of Radiology, Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY, USA.
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2
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Nakajima K, Nakata T, Doi T, Verschure DO, Frantellizzi V, De Feo MS, Tada H, Verberne HJ. Cardiac sympathetic activity and lethal arrhythmic events: insight into bell-shaped relationship between 123I-meta-iodobenzylguanidine activity and event rates. EJNMMI Res 2024; 14:67. [PMID: 39033243 PMCID: PMC11264658 DOI: 10.1186/s13550-024-01131-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 07/12/2024] [Indexed: 07/23/2024] Open
Abstract
BACKGROUND 123I-meta-iodobenzylguanidine (mIBG) has been applied to patients with chronic heart failure (CHF). However, the relationship between 123I-mIBG activity and lethal arrhythmic events (ArE) is not well defined. This study aimed to determine this relationship in Japanese and European cohorts. RESULTS We calculated heart-to-mediastinum (H/M) count ratios and washout rates (WRs) of 827 patients using planar 123I-mIBG imaging. We defined ArEs as sudden cardiac death, arrhythmic death, and potentially lethal events such as sustained ventricular tachycardia, cardiac arrest with resuscitation, and appropriate implantable cardioverter defibrillator (ICD) discharge, either from a single ICD or as part of a cardiac resynchronization therapy device (CRTD). We analyzed the incidence of ArE with respect to H/M ratios, WRs and New York Heart Association (NYHA) functional classes among Japanese (J; n = 581) and European (E; n = 246) cohorts. We also simulated ArE rates versus H/M ratios under specific conditions using a machine-learning model incorporating 13 clinical variables. Consecutive patients with CHF were selected in group J, whereas group E comprised candidates for cardiac electronic devices. Groups J and E mostly comprised patients with NYHA functional classes I/II (95%) and II/III (91%), respectively, and 21% and 72% were respectively implanted with ICD/CRTD devices. The ArE rate increased with lower H/M ratios in group J, but the relationship was bell-shaped, with a high ArE rate within the intermediate H/M range, in group E. This bell-shaped curve was also evident in patients with NYHA classes II/III in the combined J and E groups, particularly in those with a high (> 15%) mIBG WR and with ischemic, but not in those with non-ischemic etiologies. Machine learning-based prediction of ArE risk aligned with these findings, indicating a bell-shaped curve in NYHA class II/III but not in class I. CONCLUSIONS The relationship between cardiac 123I-mIBG activity and lethal arrhythmic events is influenced by the background of patients. The bell-shaped relationship in NYHA classes II/III, high WR, and ischemic etiology likely aids in identifying patients at high risk for ArEs.
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Affiliation(s)
- Kenichi Nakajima
- Department of Nuclear Medicine/Functional imaging and Artificial Intelligence, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan.
| | - Tomoaki Nakata
- Department of Cardiology, Hakodate-Goryoukaku Hospital, Hakodate, Japan
| | - Takahiro Doi
- Department of Cardiology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Derk O Verschure
- Department of Cardiology, Zaans Medical Center, Zaandam, The Netherlands
| | - Viviana Frantellizzi
- Department of Radiological Sciences, Oncology and Anatomo-Pathology, Sapienza - University of Rome, Rome, Italy
| | - Maria Silvia De Feo
- Department of Radiological Sciences, Oncology and Anatomo-Pathology, Sapienza - University of Rome, Rome, Italy
| | - Hayato Tada
- Department of Cardiology, Kanazawa University, Kanazawa, Japan
| | - Hein J Verberne
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
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Atabekov TA, Sazonova SI, Khlynin MS, Muslimova EF, Krivolapov SN, Kurlov IO, Rebrova TY, Mishkina AI, Afanasiev SA, Batalov RE, Popov SV. Predictors of appropriate therapies delivered by the implantable cardioverter-defibrillator in patients with coronary artery disease during long-term period. THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING 2024:10.1007/s10554-024-03172-1. [PMID: 38963590 DOI: 10.1007/s10554-024-03172-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 06/22/2024] [Indexed: 07/05/2024]
Abstract
This prospective study aimed to investigate the ability of cardiac autonomic nervous system (CANS) activity assessment to predict appropriate implantable cardioverter-defibrillator (ICD) therapy in patients with coronary artery disease (CAD) during long-term follow-up period. We enrolled patients with CAD and ICD implantation indications that included both secondary and primary prevention of sudden cardiac death. Before ICD implantation CANS was assessed by using heart rate variability (HRV), myocardium scintigraphy with 123I-meta-iodobenzylguanidine (123I-MIBG) and erythrocyte membranes β-adrenoreactivity (EMA). The study's primary endpoint was the documentation of appropriate ICD therapy. Of 45 (100.0%) patients, 15 (33.3%) had appropriate ICD therapy during 36 months follow-up period. Patients with appropriate ICD therapy were likely to have a higher summed 123I-MIBG score delayed (p < 0.001) and lower 123I-MIBG washout rate (p = 0.008) indicators. These parameters were independently associated with endpoint in univariable and multivariable logistic regression. We created a logistic equation and calculated a cut-off value. The resulting ROC curve revealed a discriminative ability with AUC of 0.933 (95% confidence interval 0.817-0.986; sensitivity 100.00%; specificity 93.33%). Combined CANS activity assessment is useful in prediction of appropriate ICD therapy in patients with CAD during long-term follow-up period after device implantation.
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Affiliation(s)
- Tariel A Atabekov
- Department of Surgical Arrhythmology and Cardiac Pacing, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia.
| | - Svetlana I Sazonova
- Department of Nuclear Medicine, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia
| | - Mikhail S Khlynin
- Laboratory of High Technologies for Diagnostics and Treatment of Cardiac Arrhythmias, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia
| | - Elvira F Muslimova
- Laboratory of Molecular and Cellular Pathology and Gene Diagnostics, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia
| | - Sergey N Krivolapov
- Department of Surgical Arrhythmology and Cardiac Pacing, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia
| | - Igor O Kurlov
- Department of Surgical Arrhythmology and Cardiac Pacing, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia
| | - Tatiana Yu Rebrova
- Laboratory of Molecular and Cellular Pathology and Gene Diagnostics, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia
| | - Anna I Mishkina
- Department of Nuclear Medicine, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia
| | - Sergey A Afanasiev
- Laboratory of Molecular and Cellular Pathology and Gene Diagnostics, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia
| | - Roman E Batalov
- Laboratory of High Technologies for Diagnostics and Treatment of Cardiac Arrhythmias, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia
| | - Sergey V Popov
- Academician of the Russian Academy of Sciences, Director, Department of Surgical Arrhythmology and Cardiac Pacing, Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russian Federation, Kievskaya st., 111a, Tomsk, 634012, Russia
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Saito S, Nakajima K, Komatsu J, Shibutani T, Wakabayashi H, Mori H, Takata A, Ono K, Kinuya S. Absolute quantitation of sympathetic nerve activity using [ 123I] metaiodobenzylguanidine SPECT-CT in neurology. EJNMMI REPORTS 2024; 8:15. [PMID: 38822219 PMCID: PMC11143090 DOI: 10.1186/s41824-024-00205-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/18/2024] [Indexed: 06/02/2024]
Abstract
BACKGROUND AND PURPOSE The ability of [123I]metaiodobenzylguanidine (MIBG) sympathetic nerve imaging with three-dimensional (3D) quantitation to clinically diagnose neurological disorders has not been evaluated. This study compared absolute heart counts calculated as mean standardized uptake values (SUVmean) using conventional planar imaging and assessed the contribution of [123I]MIBG single-photon emission computed tomography (SPECT)-CT to the diagnosis of neurological diseases. METHODS Seventy-two patients with neurological diseases were consecutively assessed using early and delayed [123I]MIBG SPECT-CT and planar imaging. Left ventricles were manually segmented in early and delayed SPECT-CT images, then the SUVmean and washout rates (WRs) were calculated. Heart-to-mediastinum ratios (HMRs) and WRs on planar images were conventionally computed. We investigated correlations between planar HMRs and SPECT-CT SUVmeans and between WRs obtained from planar and SPECT-CT images. The cutoff for SPECT-CT WRs defined by linear regression and that of normal planar WRs derived from a database were compared with neurological diagnoses of the patients. We assigned the patients to groups according to clinical diagnoses as controls (n = 6), multiple system atrophy (MSA, n = 7), progressive supranuclear palsy (PSP, n = 17), and Parkinson's disease or dementia with Lewy bodies (PD/DLB, n = 19), then compared SPECT-CT and planar image parameters. RESULTS We found significant correlations between SPECT-CT SUVmean and planar HMR on early and delayed images (R2 = 0.69 and 0.82, p < 0.0001) and between SPECT-CT and planar WRs (R2 = 0.79, p < 0.0001). A threshold of 31% for SPECT-CT WR based on linear regression resulted in agreement between planar and SPECT-CT WR in 67 (93.1%) of 72 patients. Compared with controls, early and delayed SUVmean in patients with PSP and MSA tended more towards significance than planar HMR. This trend was similar for SPECT-CT WRs in patients with PSP. CONCLUSIONS Absolute heart counts and SUVmean determined using [123I]MIBG SPECT-CT correlated with findings of conventional planar images in patients with neurological diseases. Three-dimensional quantitation with [123I]MIBG SPECT-CT imaging might differentiate patients with PSP and MSA from controls.
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Affiliation(s)
- Shintaro Saito
- Department of Nuclear Medicine, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan.
| | - Kenichi Nakajima
- Department of Functional Imaging and Artificial Intelligence, Kanazawa University, Kanazawa, Japan
| | - Junji Komatsu
- Department of Neurology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Takayuki Shibutani
- Department of Quantum Medical Technology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Hiroshi Wakabayashi
- Department of Nuclear Medicine, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Hiroshi Mori
- Department of Nuclear Medicine, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Aki Takata
- Department of Nuclear Medicine, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
| | - Kenjiro Ono
- Department of Neurology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Seigo Kinuya
- Department of Nuclear Medicine, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8640, Japan
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Saito S, Nakajima K, Shibutani T, Wakabayashi H, Yoneyama H, Konishi T, Mori H, Takata A, Kinuya S. Three-Dimensional Heart Segmentation and Absolute Quantitation of Cardiac 123I-metaiodobenzylguanidine Sympathetic Imaging Using SPECT/CT. ANNALS OF NUCLEAR CARDIOLOGY 2023; 9:61-67. [PMID: 38058582 PMCID: PMC10696146 DOI: 10.17996/anc.23-00002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/31/2023] [Accepted: 09/03/2023] [Indexed: 12/08/2023]
Abstract
Background: A three-dimensional (3D) approach to absolute quantitation of 123I-metaiodobenzylguanidine (MIBG) sympathetic nerve imaging using single-photon emission tomography (SPECT) / computed tomography (CT) is not available. Therefore, we calculated absolute cardiac counts and standardized uptake values (SUVs) from images of 72 consecutive patients with cardiac and neurological diseases using 123I-MIBG SPECT/CT and compared them with conventional planar quantitation. We aimed to develop new methods for 3D heart segmentation and the quantitation of these diseases. Methods: We manually segmented early and late SPECT/CT images of the heart in 3D, then calculated mean (SUVmean) and maximum (SUVmax) SUVs. We analyzed correlations between SUVs and planar heart-to-mediastinum ratios (HMRs), and between washout rates (WRs) derived from the SUVs and planar data. We also categorized WRs as normal or abnormal using linear regression lines determined by the relationship between SPECT/CT and planar WRs, and assessed agreement between them. Results: We calculated SUVmean and SUVmax from all early and late 123I-MIBG SPECT/CT images. Planar HMRs correlated with early and late SUVmean (R2=0.59 and 0.73, respectively) and SUVmax (R2=0.46 and 0.60, respectively; both p<0.0001). The SPECT/CT WRs determined based on SUVmean and SUVmax (R2=0.79 and 0.45, p<0.0001) closely correlated with planar WRs. Agreement of high and low WRs between planar WRs and SPECT/CT WRs calculated using SUVmax and SUVmean reached 88.1% and 94.4% respectively. Conclusions: We found that sympathetic nervous activity could be absolutely quantified in 3D from 123I-MIBG SPECT/CT images. Therefore, we propose a new method for quantifying sympathetic innervation on SPECT/CT images.
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Affiliation(s)
- Shintaro Saito
- Department of Nuclear Medicine, Kanazawa University, Kanazawa, Japan
| | - Kenichi Nakajima
- Department of Functional Imaging and Artificial Intelligence, Kanazawa University, Kanazawa, Japan
| | - Takayuki Shibutani
- Department of Quantum Medical Technology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | | | - Hiroto Yoneyama
- Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan
| | - Takahiro Konishi
- Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan
| | - Hiroshi Mori
- Department of Nuclear Medicine, Kanazawa University, Kanazawa, Japan
| | - Aki Takata
- Department of Nuclear Medicine, Kanazawa University, Kanazawa, Japan
| | - Seigo Kinuya
- Department of Nuclear Medicine, Kanazawa University, Kanazawa, Japan
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Nappi C, Panico M, Falzarano M, Vallone C, Ponsiglione A, Cutillo P, Zampella E, Petretta M, Cuocolo A. Tracers for Cardiac Imaging: Targeting the Future of Viable Myocardium. Pharmaceutics 2023; 15:pharmaceutics15051532. [PMID: 37242772 DOI: 10.3390/pharmaceutics15051532] [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: 03/09/2023] [Revised: 05/02/2023] [Accepted: 05/07/2023] [Indexed: 05/28/2023] Open
Abstract
Ischemic heart disease is the leading cause of mortality worldwide. In this context, myocardial viability is defined as the amount of myocardium that, despite contractile dysfunction, maintains metabolic and electrical function, having the potential for functional enhancement upon revascularization. Recent advances have improved methods to detect myocardial viability. The current paper summarizes the pathophysiological basis of the current methods used to detect myocardial viability in light of the advancements in the development of new radiotracers for cardiac imaging.
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Affiliation(s)
- Carmela Nappi
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Mariarosaria Panico
- Institute of Biostructure and Bioimaging, National Council of Research, 80131 Naples, Italy
| | - Maria Falzarano
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Carlo Vallone
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Andrea Ponsiglione
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Paolo Cutillo
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Emilia Zampella
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Mario Petretta
- IRCCS SYNLAB SDN, Via Gianturco 113, 80131 Naples, Italy
| | - Alberto Cuocolo
- Department of Advanced Biomedical Sciences, University of Naples Federico II, 80131 Naples, Italy
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Bencivenga L, Komici K, Paolillo S, Nappi C, Gargiulo P, Assante R, Gambino G, Santillo F, Femminella GD, Corbi GM, Ferrara N, Cuocolo A, Perrone-Filardi P, Rengo G. Cardiac sympathetic innervation and mortality risk scores in patients with heart failure. Eur J Clin Invest 2023; 53:e13948. [PMID: 36576359 DOI: 10.1111/eci.13948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 11/15/2022] [Accepted: 11/19/2022] [Indexed: 12/29/2022]
Abstract
INTRODUCTION In the risk stratification and selection of patients with heart failure (HF) eligible for implantable cardioverter-defibrillator (ICD) therapy, 123 I-meta-IodineBenzylGuanidine (123 I-mIBG) scintigraphy has emerged as an effective non-invasive method to assess cardiac adrenergic innervation. Similarly, clinical risk scores have been proposed to identify patients with HF at risk of all-cause mortality, for whom the net clinical benefit of device implantation would presumably be lower. Nevertheless, the association between the two classes of tools, one suggestive of arrhythmic risk, the other of all-cause mortality, needs further investigation. OBJECTIVE To test the relationship between the risk scores for predicting mortality and cardiac sympathetic innervation, assessed through myocardial 123 I-mIBG imaging, in a population of patients with HF. METHODS In HF patients undergoing 123 I-mIBG scintigraphy, eight risk stratification models were assessed: AAACC, FADES, MADIT, MADIT-ICD non-arrhythmic mortality score, PACE, Parkash, SHOCKED and Sjoblom. Cardiac adrenergic impairment was assessed by late heart-to-mediastinum ratio (H/M) <1.6. RESULTS Among 269 patients suffering from HF, late H/M showed significant negative correlation with all the predicting models, although generally weak, ranging from -0.15 (p = .013) for PACE to -0.32 (p < .001) for FADES. The scores showed poor discrimination for cardiac innervation, with areas under the curve (AUC) ranging from 0.546 for Parkash to 0.621 for FADES. CONCLUSION A weak association emerged among mortality risk scores and cardiac innervation, suggesting to integrate in clinical practice tools indicative of both arrhythmic and general mortality risks, when evaluating patients affected by HF eligible for device implantation.
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Affiliation(s)
- Leonardo Bencivenga
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy.,Gérontopôle de Toulouse, Institut du Vieillissement, CHU de Toulouse, Toulouse, France
| | - Klara Komici
- Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
| | - Stefania Paolillo
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy
| | - Carmela Nappi
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy
| | - Paola Gargiulo
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy
| | - Roberta Assante
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy
| | - Giuseppina Gambino
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - Fabio Santillo
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | | | - Grazia Maria Corbi
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - Nicola Ferrara
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - Alberto Cuocolo
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy
| | - Pasquale Perrone-Filardi
- Department of Advanced Biomedical Sciences, University of Naples "Federico II", Naples, Italy.,Mediterranea Cardiocentro, Naples, Italy
| | - Giuseppe Rengo
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy.,Istituti Clinici Scientifici Maugeri SpA Società Benefit, Telese Terme, Italy
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Gimelli A, Lakshmanan S, Della Tommasina V, Liga R. What Is New in Risk Assessment in Nuclear Cardiology? Cardiol Clin 2023; 41:197-205. [PMID: 37003677 DOI: 10.1016/j.ccl.2023.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
Nuclear cardiology techniques allow in-depth evaluation of cardiac patients. A body of literature has established the use of nuclear cardiology. The results obtained with traditional cameras have been reinforced by those obtained with a series of innovations that have revolutionized the field of nuclear cardiology. This article highlights the role of nuclear cardiology in the risk assessment of patients with cardiac disease and sheds light on advancements of nuclear imaging techniques in the cardiovascular field. Patient risk stratification has a key role in modern precision medicine. Nuclear cardiac imaging techniques may quantitatively investigate major disease mechanisms of different cardiac pathologies.
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9
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Travin MI. Can the promise of radionuclide cardiac innervation imaging be fulfilled? J Nucl Cardiol 2022; 29:3189-3193. [PMID: 35048304 DOI: 10.1007/s12350-021-02866-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 10/31/2021] [Indexed: 01/18/2023]
Affiliation(s)
- Mark I Travin
- Division of Nuclear Medicine, Department of Radiology, Montefiore Medical Center and the, Albert Einstein College of Medicine, 111 E. 210th Street, Bronx, NY, 10467-2490, USA.
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10
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Chen HS, Jungen C, Kimura Y, Dibbets-Schneider P, Piers SR, Androulakis AFA, van der Geest RJ, de Geus-Oei LF, Scholte AJHA, Lamb HJ, Jongbloed MRM, Zeppenfeld K. Ventricular Arrhythmia Substrate Distribution and Its Relation to Sympathetic Innervation in Nonischemic Cardiomyopathy Patients. JACC Clin Electrophysiol 2022; 8:1234-1245. [PMID: 36265999 DOI: 10.1016/j.jacep.2022.07.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 06/14/2022] [Accepted: 07/09/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Nonischemic cardiomyopathy patients referred for catheter ablation of ventricular arrhythmias (VAs) typically have either inferolateral (ILS) or anteroseptal (ASS) VA substrate locations, with poorer outcomes for ASS. Sympathetic denervation is an important determinant of arrhythmogenicity. Its relation to nonischemic fibrosis in general and to the different VA substrates is unknown. OBJECTIVES This study sought to evaluate the association between VA substrates, myocardial fibrosis, and sympathetic denervation. METHODS Thirty-five patients from the Leiden Nonischemic Cardiomyopathy Study, who underwent electroanatomic voltage mapping and iodine-123 metaiodobenzylguanidine imaging between 2011 and 2018 were included. Late gadolinium-enhanced cardiac magnetic resonance data were collected when available. The relation between global cardiac sympathetic innervation and area-weighted unipolar voltage (UV) as a surrogate for diffuse fibrosis was evaluated. For regional analysis, patients were categorized as ASS or ILS. The distribution of low UV, sympathetic denervation, and late gadolinium enhancement (LGE) scar were compared using the 17-segment model. RESULTS Median area-weighted UV was 12.3 mV in patients with normal sympathetic innervation and 8.7 mV in patients with sympathetic denervation. Global sympathetic denervation correlated with diffuse myocardial fibrosis (R = 0.53; P = 0.02). ILS (n = 13) matched with low UV, sympathetic denervation, and LGE scar in all patients, whereas ASS (n = 11) matched with low UV in all patients, with LGE scar in 63% (P = 0.20), but with sympathetic denervation in only 27% of patients (P = 0.0002). CONCLUSIONS Global cardiac sympathetic denervation is related to fibrosis in nonischemic cardiomyopathy patients with VA. The mismatch between regional fibrosis and preserved innervation for ASS may contribute to a VA substrate difficult to control by catheter ablation.
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Affiliation(s)
- H Sophia Chen
- Department of Cardiology, Willem Einthoven Center for Cardiac Arrhythmia Research and Management, Leiden University Medical Center, Leiden, the Netherlands; Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands
| | - Christiane Jungen
- Department of Cardiology, Willem Einthoven Center for Cardiac Arrhythmia Research and Management, Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiology, University Heart and Vascular Center Hamburg, University Hospital Hamburg-Eppendorf, Germany
| | - Yoshitaka Kimura
- Department of Cardiology, Willem Einthoven Center for Cardiac Arrhythmia Research and Management, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Sebastiaan R Piers
- Department of Cardiology, Willem Einthoven Center for Cardiac Arrhythmia Research and Management, Leiden University Medical Center, Leiden, the Netherlands
| | - Alexander F A Androulakis
- Department of Cardiology, Willem Einthoven Center for Cardiac Arrhythmia Research and Management, Leiden University Medical Center, Leiden, the Netherlands
| | - Rob J van der Geest
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Lioe-Fee de Geus-Oei
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Arthur J H A Scholte
- Department of Cardiology, Willem Einthoven Center for Cardiac Arrhythmia Research and Management, Leiden University Medical Center, Leiden, the Netherlands
| | - Hildo J Lamb
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Monique R M Jongbloed
- Department of Cardiology, Willem Einthoven Center for Cardiac Arrhythmia Research and Management, Leiden University Medical Center, Leiden, the Netherlands; Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands
| | - Katja Zeppenfeld
- Department of Cardiology, Willem Einthoven Center for Cardiac Arrhythmia Research and Management, Leiden University Medical Center, Leiden, the Netherlands.
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Pontico M, Brunotti G, Conte M, Corica F, Cosma L, De Angelis C, De Feo MS, Lazri J, Matto A, Montebello M, Di Rocco A, Frantellizzi V, Farcomeni A, De Vincentis G. The prognostic value of 123I-mIBG SPECT cardiac imaging in heart failure patients: a systematic review. J Nucl Cardiol 2022; 29:1799-1809. [PMID: 33442819 PMCID: PMC9345809 DOI: 10.1007/s12350-020-02501-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 12/15/2020] [Indexed: 12/31/2022]
Abstract
This systematic review aimed to evaluate the prognostic value of Iodine123 Metaiodobenzylguanidine (123I-mIBG) SPECT myocardial imaging in patients with heart failure (HF) and to assess whether semi-quantitative SPECT scores can be useful for accurate risk stratification concerning arrhythmic event (AE) and sudden cardiac death (SCD) in this cohort. A systematic literature search of studies published until November 2020 regarding the application of 123I-mIBG SPECT in HF patients was performed, in Pubmed, Scopus, Medline, Central (Cochrane Library) and Web Of Science databases, including the words "MIBG", "metaiodobenzylguanidine", "heart", "spect", and "tomographic". The included studies had to correlate 123I-mIBG SPECT scores with endpoints such as overall survival and prevention of AE and SCD in HF patients. According to the sixteen studies included, the analysis showed that 123I-mIBG SPECT scores, such as summed defect score (SDS), regional wash-out (rWO), and regional myocardial tracer uptake, could have a reliable prognostic value in patients with HF. An increased SDS or rWO, as well as a reduced 123I-mIBG myocardial uptake, have proven to be effective in predicting AE- and SCD-specific risk in HF patients. Despite achieved results being promising, a more reproducible standardized method for semi-quantitative analysis and further studies with larger cohort are needed for 123I-mIBG SPECT myocardial imaging to be as reliable and, thus, accepted as the conventional 123I-mIBG planar myocardial imaging.
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Affiliation(s)
- Mariano Pontico
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Gabriele Brunotti
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Miriam Conte
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Ferdinando Corica
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Laura Cosma
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Cristina De Angelis
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Maria Silvia De Feo
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Julia Lazri
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Antonio Matto
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Melissa Montebello
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Arianna Di Rocco
- Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, Rome, Italy
| | - Viviana Frantellizzi
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.
| | - Alessio Farcomeni
- Department of Economics & Finance, University of Rome "Tor Vergata", Rome, Italy
| | - Giuseppe De Vincentis
- Department of Radiological Sciences, Oncology and Anatomical Pathology, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
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12
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Verschure DO, Nakajima K, Verberne HJ. Cardiac 123I- mIBG Imaging in Heart Failure. Pharmaceuticals (Basel) 2022; 15:656. [PMID: 35745574 PMCID: PMC9230638 DOI: 10.3390/ph15060656] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/05/2022] [Accepted: 05/09/2022] [Indexed: 12/10/2022] Open
Abstract
Cardiac sympathetic upregulation is one of the neurohormonal compensation mechanisms that play an important role in the pathogenesis of chronic heart failure (CHF). In the past decades, cardiac 123I-mIBG scintigraphy has been established as a feasible technique to evaluate the global and regional cardiac sympathetic innervation. Although cardiac 123I-mIBG imaging has been studied in many cardiac and neurological diseases, it has extensively been studied in ischemic and non-ischemic CHF. Therefore, this review will focus on the role of 123I-mIBG imaging in CHF. This non-invasive, widely available technique has been established to evaluate the prognosis in CHF. Standardization, especially among various combinations of gamma camera and collimator, is important for identifying appropriate thresholds for adequate risk stratification. Interestingly, in contrast to the linear relationship between 123I-mIBG-derived parameters and overall prognosis, there seems to be a "bell-shape" curve for 123I-mIBG-derived parameters in relation to ventricular arrhythmia or appropriate implantable cardioverter defibrillator (ICD) therapy in patients with ischemic CHF. In addition, there is a potential clinical role for cardiac 123I-mIBG imaging in optimizing patient selection for implantation of expensive devices such as ICD and cardiac resynchronization therapy (CRT). Based on cardiac 123I-mIBG data risk models and machine learning, models have been developed for appropriate risk assessment in CHF.
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Affiliation(s)
- Derk O. Verschure
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, Location Amsterdam Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
- Department of Cardiology, Zaans Medical Center, Koningin Julianaplein 58, 1502 DV Zaandam, The Netherlands
| | - Kenichi Nakajima
- Department of Functional Imaging and Artificial Intelligence, Kanazawa University, Kanazawa 920-8641, Japan;
| | - Hein J. Verberne
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, Location Amsterdam Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands;
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13
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Sazonova SI, Atabekov TA, Batalov RE, Mishkina AI, Varlamova JV, Zavadovsky KV, Popov SV. Prediction of appropriate ICD therapy in patients with ischemic heart failure. J Nucl Cardiol 2022; 29:680-691. [PMID: 32851586 DOI: 10.1007/s12350-020-02321-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 07/27/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Previous studies show inconsistent results on the role of innervation imaging (with I-123-mIBG) and perfusion imaging in predicting appropriate ICD therapy (aICDth). These studies included patients with both dilated and ischemic cardiomyopathy. This study compared the ability of 123I-mIBG imaging along with perfusion imaging (using thallium-199) to predict aICDth in patients with ischemic heart failure (IHF) in relation to indication for ICD implantation (primary vs. secondary prevention of sudden cardiac death (SCD)). METHODS mIBG/thallium SPECT imaging were performed before ICD implantation in 80 patients with IHF: 49 candidates for primary and 31 for secondary SCD prevention. RESULTS During a mean follow-up of 18 months, the imaging results could not predict patients with appropriate ICD therapy among patients with ICD implants for primary SCD prevention. While in the secondary SCD prevention group, those who received a ICDth had significantly larger summed scores of regional perfusion and innervation impairment, but not higher heart-to-mediastinal mIBG ratio. The best results to predict aICDth were using mIBG summed score (cut-off point > 34%, sensitivity 72%, specificity 100%, AUC 0.909, P < 0.0001). CONCLUSION The prognostic value of innervation and perfusion imaging in patients with IHF differ based on indication for ICD implantation (primary vs. secondary prevention of SCD).
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Affiliation(s)
- Svetlana I Sazonova
- Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russian Federation.
| | - Tariel A Atabekov
- Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russian Federation
| | - Roman E Batalov
- Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russian Federation
| | - Anna I Mishkina
- Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russian Federation
| | - Julia V Varlamova
- Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russian Federation
| | - Konstantin V Zavadovsky
- Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russian Federation
| | - Sergey V Popov
- Cardiology Research Institute, Tomsk National Research Medical Centre, Russian Academy of Sciences, Tomsk, Russian Federation
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14
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Travin MI. Importance of individual patient characteristics when assessing the ability of cardiac adrenergic imaging to guide ICD use. J Nucl Cardiol 2022; 29:692-697. [PMID: 33083985 DOI: 10.1007/s12350-020-02387-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 09/15/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Mark I Travin
- Division of Nuclear Medicine, Department of Radiology, Montefiore Medical Center and the Albert Einstein College of Medicine, 111 E. 210th Street, Bronx, NY, 10467-2490, USA.
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15
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Nakajima K, Nakata T, Doi T, Tada H, Maruyama K. Machine learning-based risk model using 123I-metaiodobenzylguanidine to differentially predict modes of cardiac death in heart failure. J Nucl Cardiol 2022; 29:190-201. [PMID: 32410060 PMCID: PMC8873155 DOI: 10.1007/s12350-020-02173-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/20/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND Cardiac sympathetic dysfunction is closely associated with cardiac mortality in patients with chronic heart failure (CHF). We analyzed the ability of machine learning incorporating 123I-metaiodobenzylguanidine (MIBG) to differentially predict risk of life-threatening arrhythmic events (ArE) and heart failure death (HFD). METHODS AND RESULTS A model was created based on patients with documented 2-year outcomes of CHF (n = 526; age, 66 ± 14 years). Classifiers were trained using 13 variables including age, gender, NYHA functional class, left ventricular ejection fraction and planar 123I-MIBG heart-to-mediastinum ratio (HMR). ArE comprised arrhythmic death and appropriate therapy with an implantable cardioverter defibrillator. The probability of ArE and HFD at 2 years was separately calculated based on appropriate classifiers. The probability of HFD significantly increased as HMR decreased when any variables were combined. However, the probability of arrhythmic events was maximal when HMR was intermediate (1.5-2.0 for patients with NYHA class III). Actual rates of ArE were 3% (10/379) and 18% (27/147) in patients at low- (≤ 11%) and high- (> 11%) risk of developing ArE (P < .0001), respectively, whereas those of HFD were 2% (6/328) and 49% (98/198) in patients at low-(≤ 15%) and high-(> 15%) risk of HFD (P < .0001). CONCLUSION A risk model based on machine learning using clinical variables and 123I-MIBG differentially predicted ArE and HFD as causes of cardiac death.
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Affiliation(s)
- Kenichi Nakajima
- Department of Functional Imaging and Artificial Intelligence, Kanazawa University Graduate School of Medicine, 13-1 Takara-machi, Kanazawa, 920-8640, Japan.
| | - Tomoaki Nakata
- Department of Cardiology, Hakodate-Goryoukaku Hospital, Hakodate, Japan
| | - Takahiro Doi
- Department of Cardiology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Hayato Tada
- Department of Cardiology, Kanazawa University Hospital, Kanazawa, Japan
| | - Koji Maruyama
- Wolfram Research Inc., Tokyo, Japan
- Department of Chemistry and Materials Science, Osaka City University, Osaka, Japan
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16
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Convolutional neural network-based automatic heart segmentation and quantitation in 123I-metaiodobenzylguanidine SPECT imaging. EJNMMI Res 2021; 11:105. [PMID: 34637028 PMCID: PMC8511236 DOI: 10.1186/s13550-021-00847-x] [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: 07/23/2021] [Accepted: 09/27/2021] [Indexed: 01/25/2023] Open
Abstract
Background Since three-dimensional segmentation of cardiac region in 123I-metaiodobenzylguanidine (MIBG) study has not been established, this study aimed to achieve organ segmentation using a convolutional neural network (CNN) with 123I-MIBG single photon emission computed tomography (SPECT) imaging, to calculate heart counts and washout rates (WR) automatically and to compare with conventional quantitation based on planar imaging. Methods We assessed 48 patients (aged 68.4 ± 11.7 years) with heart and neurological diseases, including chronic heart failure, dementia with Lewy bodies, and Parkinson's disease. All patients were assessed by early and late 123I-MIBG planar and SPECT imaging. The CNN was initially trained to individually segment the lungs and liver on early and late SPECT images. The segmentation masks were aligned, and then, the CNN was trained to directly segment the heart, and all models were evaluated using fourfold cross-validation. The CNN-based average heart counts and WR were calculated and compared with those determined using planar parameters. The CNN-based SPECT and conventional planar heart counts were corrected by physical time decay, injected dose of 123I-MIBG, and body weight. We also divided WR into normal and abnormal groups from linear regression lines determined by the relationship between planar WR and CNN-based WR and then analyzed agreement between them. Results The CNN segmented the cardiac region in patients with normal and reduced uptake. The CNN-based SPECT heart counts significantly correlated with conventional planar heart counts with and without background correction and a planar heart-to-mediastinum ratio (R2 = 0.862, 0.827, and 0.729, p < 0.0001, respectively). The CNN-based and planar WRs also correlated with and without background correction and WR based on heart-to-mediastinum ratios of R2 = 0.584, 0.568 and 0.507, respectively (p < 0.0001). Contingency table findings of high and low WR (cutoffs: 34% and 30% for planar and SPECT studies, respectively) showed 87.2% agreement between CNN-based and planar methods. Conclusions The CNN could create segmentation from SPECT images, and average heart counts and WR were reliably calculated three-dimensionally, which might be a novel approach to quantifying SPECT images of innervation. Supplementary Information The online version contains supplementary material available at 10.1186/s13550-021-00847-x.
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17
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Verschure DO, Nakajima K, Jacobson AF, Verberne HJ. 40 Years Anniversary of Cardiac 123I-mIBG Imaging: State of the Heart. CURRENT CARDIOVASCULAR IMAGING REPORTS 2021. [DOI: 10.1007/s12410-021-09555-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Abstract
Purpose of Review
This narrative review reflects on the body of evidence on cardiac 123I-mIBG imaging that has accumulated since the introduction in the late 1970s and focusses on to what extent cardiac 123I-mIBG imaging has fulfilled its potential in cardiology especially.
Recent Findings
In contrast to the linear relationship between 123I-mIBG-derived parameters and overall prognosis in heart failure, there seems a “bell-shape” curve for 123I-mIBG-derived parameters and arrhythmic events. In addition, there is a potential clinical role for cardiac 123I-mIBG in optimizing patient selection for expensive devices (i.e., ICD and CRT). This needs of course to be established in future trials.
Summary
Cardiac 123I-mIBG imaging is, despite the numerous of studies, sometimes mistakenly seen as a nice to have technique rather than a must have imaging modality. Although cardiac 123I-mIBG imaging has grown and matured over the years, its full clinical potential has still not been tested to the maximum.
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18
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Verschure DO, Poel E, Travin MI, Henzlova MJ, Jain D, Jacobson AF, Verberne HJ. A simplified wall-based model for regional innervation/perfusion mismatch assessed by cardiac 123I-mIBG and rest 99mTc-tetrofosmin SPECT to predict arrhythmic events in ischaemic heart failure. Eur Heart J Cardiovasc Imaging 2021; 23:1201-1209. [PMID: 34427293 PMCID: PMC9365302 DOI: 10.1093/ehjci/jeab132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 06/22/2021] [Indexed: 12/28/2022] Open
Abstract
AIMS Cardiac 123iodine-meta-iodobenzylguanidine (123I-mIBG) single-photon emission computed tomography (SPECT) imaging provides information on regional myocardial innervation. However, the value of the commonly used 17-segment summed defect score (SDS) as a prognostic marker is uncertain. The present study examined whether a simpler regional scoring approach for evaluation of 123I-mIBG SPECT combined with rest 99mTc-tetrofosmin SPECT myocardial perfusion imaging could improve prediction of arrhythmic events (AEs) in patients with ischaemic heart failure (HF). METHODS AND RESULTS Five hundred and two ischaemic HF subjects of the ADMIRE-HF study with complete cardiac 123I-mIBG and rest 99mTc-tetrofosmin SPECT studies were included. Both SPECT image sets were read together by two experienced nuclear imagers and scored by consensus. In addition to standard 17-segment scoring, the readers classified walls (i.e. anterior, lateral, inferior, septum and apex) as normal, matched defect, mismatched (innervation defect > perfusion defect), or reverse mismatched (perfusion defect > innervation defect). Cox proportional hazards ratios (HRs) were used to determine if age, body mass index, functional class, left ventricular ejection fraction (LVEF), B-type natriuretic peptide (BNP), norepinephrine, 123I-mIBG SDS, 99mTc-tetrofosmin SDS, innervation/perfusion mismatch SDS, and our simplified visual innervation/perfusion wall classification were associated with occurrence of AEs (i.e. sudden cardiac death, sustained ventricular tachycardia, resuscitated cardiac arrest, appropriate implantable cardioverter-defibrillator therapy). At 2-year median follow-up, 52 subjects (10.4%) had AEs. Subjects with 1 or 2 mismatched walls were twice as likely to have AEs compared with subjects with either 0 or 3-5 mismatched walls (16.3% vs. 8.3%, P = 0.010). Cox regression analyses showed that patients with a visual mismatch in 1-2 walls had an almost two times higher risk of AEs [HR 2.084 (1.109-3.914), P = 0.001]. None of the other innervation, perfusion and mismatch scores using standard 17 segments were associated with AEs. BNP (ng/L) was the only non-imaging parameter associated with AEs. CONCLUSION A visual left ventricular wall-level based scoring method identified highest AE risk in ischaemic HF subjects with intermediate levels of innervation/perfusion mismatches. This simple technique for the evaluation of SPECT studies, which are often challenging in HF subjects, seems to be superior to the 17-segment scoring method.
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Affiliation(s)
- Derk O Verschure
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, the Netherlands.,Department of Cardiology, Zaans Medical Center, Koningin Julianaplein 58, 1502DV, Zaandam, the Netherlands
| | - Edwin Poel
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, the Netherlands
| | - Mark I Travin
- Division of Nuclear Medicine, Department of Radiology, Montefiore Medical Center and the Albert Einstein College of Medicine, Bronx, NY, USA
| | - Milena J Henzlova
- Department of Cardiology, Mount Sinai Medical Center, 1468 Madison Avenue, New York, NY 10029, USA
| | - Diwakar Jain
- Cardio-Oncology Service, Nuclear Cardiovascular Imaging Laboratory, Department of Cardiology, Westchester Medical Center, New York Medical College, 100 Woods road, Valhalla, NY, 10595, USA
| | | | - Hein J Verberne
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, Location AMC, University of Amsterdam, Meibergdreef 9, 1105AZ, Amsterdam, the Netherlands
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Gimelli A, Liga R, Agostini D, Bengel FM, Ernst S, Hyafil F, Saraste A, Scholte AJHA, Verberne HJ, Verschure DO, Slart RHJA. The role of myocardial innervation imaging in different clinical scenarios: an expert document of the European Association of Cardiovascular Imaging and Cardiovascular Committee of the European Association of Nuclear Medicine. Eur Heart J Cardiovasc Imaging 2021; 22:480-490. [PMID: 33523108 DOI: 10.1093/ehjci/jeab007] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/08/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiac sympathetic activity plays a key role in supporting cardiac function in both health and disease conditions, and nuclear cardiac imaging has always represented the only way for the non-invasive evaluation of the functional integrity of cardiac sympathetic terminals, mainly through the use of radiopharmaceuticals that are analogues of norepinephrine and, in particular, with the use of 123I-mIBG imaging. This technique demonstrates the presence of cardiac sympathetic dysfunction in different cardiac pathologies, linking the severity of sympathetic nervous system impairment to adverse patient's prognosis. This article will outline the state-of-the-art of cardiac 123I-mIBG imaging and define the value and clinical applications in the different fields of cardiovascular diseases.
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Affiliation(s)
- Alessia Gimelli
- Department of Imaging, Fondazione Toscana/CNR Gabriele Monasterio1, via Moruzzi n.1, Pisa 56124, Italy
| | - Riccardo Liga
- Cardiac-Thoracic-Vascular Department, Università di Pisa, Pisa, Italy
| | - Denis Agostini
- Department of Nuclear Medicine, University Hospital of Normandy, CHU Cote de Nacre, Caen, France
| | - Frank M Bengel
- Department of Nuclear Medicine, Hannover Medical School (MHH), Hannover, Germany
| | - Sabine Ernst
- Royal Brompton and Harefield NHS Foundation Trust, National Heart and Lung Institute, Imperial College, London, UK
| | - Fabien Hyafil
- Department of Nuclear Medicine, European Hospital Georges-Pompidou, DMU IMAGINA, Assistance Publique-Hôpitaux de Paris, University of Paris, Paris, France
| | - Antti Saraste
- Turku PET Centre, University of Turku, Turku, Finland.,Heart Center, Turku University Hospital, Turku, Finland
| | - Arthur J H A Scholte
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Hein J Verberne
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Derk O Verschure
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Department of Cardiology, Zaans Medical Center, Zaandam, the Netherlands
| | - Riemer H J A Slart
- Department of Nuclear Medicine and Molecular Imaging, Medical Imaging Centre, University Medical Center Groningen, Groningen, The Netherlands.,Faculty of Science and Technology, Biomedical Photonic Imaging, University of Twente, Enschede, The Netherlands
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20
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Verberne HJ, Verschure DO. How to best appreciate the possible clinical role of cardiac 123I-mIBG scintigraphy in heart failure patients: Trying not to get lost while going in the right direction! J Nucl Cardiol 2021; 28:1504-1506. [PMID: 31538324 DOI: 10.1007/s12350-019-01895-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 09/06/2019] [Indexed: 10/26/2022]
Affiliation(s)
- H J Verberne
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, Location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
| | - D O Verschure
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, Location AMC, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Department of Cardiology, Zaans Medical Center, Zaandam, The Netherlands
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21
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Teresińska A, Woźniak O, Maciąg A, Wnuk J, Jezierski J, Fronczak A, Biernacka EK. Quality and utility of [ 123I]I-metaiodobenzylguanidine cardiac SPECT imaging in nondiabetic postinfarction heart failure patients qualified for implantable cardioverter defibrillator. Ann Nucl Med 2021; 35:916-926. [PMID: 34023989 PMCID: PMC8285320 DOI: 10.1007/s12149-021-01628-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/11/2021] [Indexed: 12/02/2022]
Abstract
OBJECTIVE Impaired cardiac adrenergic activity has been demonstrated in heart failure (HF) and in diabetes mellitus (DM). [123I]I-metaiodobenzylguanidine (MIBG) enables assessment of the cardiac adrenergic nervous system. Tomographic imaging of the heart is expected to be superior to planar imaging. This study aimed to determine the quality and utility of MIBG SPECT in the assessment of cardiac innervation in postinfarction HF patients without DM, qualified for implantable cardioverter defibrillator (ICD) in primary prevention of sudden cardiac death. METHODS Consecutive patients receiving an ICD on the basis of contemporary guidelines were prospectively included. Planar MIBG studies were followed by SPECT. The essential analysis was based on visual assessment of the quality of SPECT images ("high", "low" or "unacceptable"). The variables used in the further analysis were late summed defect score for SPECT images and heart-to-mediastinum rate for planar images. MIBG images were assessed independently by two experienced readers. RESULTS Fifty postinfarction nondiabetic HF subjects were enrolled. In 13 patients (26%), the assessment of SPECT studies was impossible. In addition, in 13 of 37 patients who underwent semiquantitative SPECT evaluation, the assessment was equivocal. Altogether, in 26/50 patients (52%, 95% confidence interval 38-65%), the quality of SPECT images was unacceptable or low and was limited by low MIBG cardiac uptake and by comparatively high, interfering MIBG uptake in the neighboring structures (primarily, in the lungs). CONCLUSIONS The utility of MIBG SPECT imaging, at least with conventional imaging protocols, in the qualification of postinfarction HF patients for ICD, is limited. In approximately half of the postinfarction HF patients, SPECT assessment of cardiac innervation can be impossible or equivocal, even without additional damage from diabetic cardiac neuropathy. The criteria predisposing the patient to good-quality MIBG SPECT are: high values of LVEF from the range characterizing the patients qualified to ICD (i.e., close to 35%) and left lung uptake intensity in planar images comparable to or lower than heart uptake.
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Affiliation(s)
- Anna Teresińska
- National Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland.
| | - Olgierd Woźniak
- National Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland
| | - Aleksander Maciąg
- National Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland
| | - Jacek Wnuk
- National Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland
| | | | - Aneta Fronczak
- National Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland
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Zelt JGE, Wang JZ, Mielniczuk LM, Beanlands RSB, Fallavollita JA, Canty JM, deKemp RA. Positron Emission Tomography Imaging of Regional Versus Global Myocardial Sympathetic Activity to Improve Risk Stratification in Patients With Ischemic Cardiomyopathy. Circ Cardiovasc Imaging 2021; 14:e012549. [PMID: 34102857 PMCID: PMC8208501 DOI: 10.1161/circimaging.121.012549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Current risk assessment approaches fail to identify the majority of patients at risk of sudden cardiac arrest (SCA). Noninvasive imaging of the cardiac sympathetic nervous system using single-photon emission computed tomography and positron emission tomography offers the potential for refining SCA risk assessment. While various [11C]meta-hydroxyephedrine quantification parameters have been proposed, it is currently unknown whether regional denervation or global innervation yields greater SCA risk discrimination. The aim of the study was to determine whether the global innervation parameters yield any independent and additive prognostic value over the regional denervation alone. METHODS In a post hoc competing-risks analysis of the PAREPET trial (Prediction of Arrhythmic Events With Positron Emission Tomography), we compared global innervation and regional denervation parameters using the norepinephrine analog [11C]meta-hydroxyephedrine for SCA risk discrimination. Patients with ischemic cardiomyopathy (n=174) eligible for an implantable cardioverter-defibrillator for the primary prevention of SCA were recruited into the trial. [11C]meta-hydroxyephedrine uptake and clearance rates were measured to assess global (left ventricle mean) retention index and volume of distribution. Regional defects were quantified as the percentage of the left ventricle having values <75% of the maximum. RESULTS During a median follow-up of 4.2 years, there were 56 cardiac-related deaths, of which 26 were SCAs. For any given regional denervation volume, there was substantial heterogeneity in global innervation scores. Global retention index and distribution volume did not decrease until regional defects exceeded 40% left ventricle. Global scale parameters, retention index, and distribution volume (area under the curve=0.61, P=0.034, P=0.046, respectively), yielded inferior SCA risk discrimination compared to regional heterogeneity (area under the curve=0.74). CONCLUSIONS Regional denervation volume has superior cause-specific mortality prediction for SCA versus global parameters of sympathetic innervation. These results have widespread implications for future cardiac sympathetic imaging, which will greatly simplify innervation analysis. Registration: URL: https://www.clinicaltrials.gov; Unique identifier: NCT01400334.
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Affiliation(s)
- Jason G E Zelt
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, Canada (J.G.E.Z., J.Z.W., L.M.M., R.S.B.B., R.A.dk.)
- Faculty of Medicine (J.G.E.Z., J.Z.W., L.M.M., R.S.B.B., R.A.dk.), University of Ottawa, Canada
- Department of Cellular and Molecular Medicine (J.G.E.Z., L.M.M., R.S.B.B.), University of Ottawa, Canada
| | - Jean Zhuo Wang
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, Canada (J.G.E.Z., J.Z.W., L.M.M., R.S.B.B., R.A.dk.)
- Faculty of Medicine (J.G.E.Z., J.Z.W., L.M.M., R.S.B.B., R.A.dk.), University of Ottawa, Canada
| | - Lisa M Mielniczuk
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, Canada (J.G.E.Z., J.Z.W., L.M.M., R.S.B.B., R.A.dk.)
- Faculty of Medicine (J.G.E.Z., J.Z.W., L.M.M., R.S.B.B., R.A.dk.), University of Ottawa, Canada
- Department of Cellular and Molecular Medicine (J.G.E.Z., L.M.M., R.S.B.B.), University of Ottawa, Canada
| | - Rob S B Beanlands
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, Canada (J.G.E.Z., J.Z.W., L.M.M., R.S.B.B., R.A.dk.)
- Faculty of Medicine (J.G.E.Z., J.Z.W., L.M.M., R.S.B.B., R.A.dk.), University of Ottawa, Canada
- Department of Radiology (R.S.B.B.), University of Ottawa, Canada
- Department of Cellular and Molecular Medicine (J.G.E.Z., L.M.M., R.S.B.B.), University of Ottawa, Canada
| | - James A Fallavollita
- VA Western New York Healthcare System, Buffalo, NY (J.A.F., J.M.C.)
- Division of Cardiovascular Medicine, University at Buffalo, NY (J.A.F., J.M.C.)
| | - John M Canty
- VA Western New York Healthcare System, Buffalo, NY (J.A.F., J.M.C.)
- Division of Cardiovascular Medicine, University at Buffalo, NY (J.A.F., J.M.C.)
| | - Robert A deKemp
- Department of Medicine (Cardiology), University of Ottawa Heart Institute, Canada (J.G.E.Z., J.Z.W., L.M.M., R.S.B.B., R.A.dk.)
- Faculty of Medicine (J.G.E.Z., J.Z.W., L.M.M., R.S.B.B., R.A.dk.), University of Ottawa, Canada
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Li G, Du P, Qiang X, Jin D, Liu H, Li B, Guo J. Low-expressed GAS5 injure myocardial cells and progression of chronic heart failure via regulation of miR-223-3P. Exp Mol Pathol 2020; 117:104529. [PMID: 32926880 DOI: 10.1016/j.yexmp.2020.104529] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 08/29/2020] [Accepted: 09/09/2020] [Indexed: 01/26/2023]
Abstract
Chronic heart failure (CHF) is a common disease in clinical practice, and its incidence has been increasing in recent years. Understanding the pathogenesis of CHF is the key to its future clinical diagnosis and treatment. Molecular research is a hot topic in modern hospitals, and long non-coding RNA (LncRNA) has been gradually understood and applied in many diseases. The situation of LncRNA GAS5 in CHF is still unclear, so this experiment will investigate the situation of GAS5 in CHF and its effect on myocardial cells, aiming to gain a preliminary understanding of the mechanism of GAS5's effect on CHF. In this study, the expression of GAS5 and miR-223-3p in peripheral blood of CHF patients and healthy subjects was first detected, GAS5 was low in CHF while miR-223-3p was high (P < 0.05). Subsequently, ROC curve analysis showed that GAS5 and miR-223-3p had good predictive value for the occurrence and recurrence of CHF. Secondly, through in vitro experiments, we found that inhibition of GAS5 with elevated expression of miR-223-3p decreased the proliferative capacity of cardiomyocytes and increased apoptotic capacity and inflammatory factors (P < 0.050). Through dual luciferase reporter and RNA immunoprecipitation experiment, we found that miR-223-3p was regulated by GAS5 in a targeted manner.
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Affiliation(s)
- Gang Li
- Department of Cardiovascular Surgery, Xian Children's Hospital, No. 69 Xijuyuan Land, Xian 710003, Shannxi Province, China
| | - Pang Du
- Department of Radiology, Tangdu Hospital, Xian 710003, Shannxi, China
| | - Xu Qiang
- Department of Cardiovascular Surgery, Xian Children's Hospital, No. 69 Xijuyuan Land, Xian 710003, Shannxi Province, China
| | - Dayong Jin
- Department of Radiology, Tangdu Hospital, Xian 710003, Shannxi, China
| | - Haochen Liu
- Department of Cardiovascular Surgery, Xian Children's Hospital, No. 69 Xijuyuan Land, Xian 710003, Shannxi Province, China
| | - Bo Li
- Department of Cardiovasology, Tangdu Hospital, Xian 710003, Shannxi, China
| | - Jianjun Guo
- Department of Cardiovascular Surgery, Xian Children's Hospital, No. 69 Xijuyuan Land, Xian 710003, Shannxi Province, China.
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Structural and Physiological Imaging to Predict the Risk of Lethal Ventricular Arrhythmias and Sudden Death. JACC Cardiovasc Imaging 2020; 12:2049-2064. [PMID: 31601379 DOI: 10.1016/j.jcmg.2019.05.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 04/10/2019] [Accepted: 05/02/2019] [Indexed: 12/26/2022]
Abstract
Identifying patients at risk of sudden cardiac death remains a major challenge in cardiovascular medicine. Advances in cardiovascular imaging have identified several anatomic and functional variables that can be quantified as continuous variables to predict the risk of developing lethal ventricular tachyarrhythmias in patients with depressed left ventricular (LV) systolic function. Some, such as LV mass, volume, and the dyssynchrony of contraction, can be derived from currently available echocardiographic and nuclear imaging modalities. Others require advanced cardiac imaging modalities with quantification of myocardial scar with gadolinium-enhanced cardiac magnetic resonance and myocardial sympathetic denervation using norepinephrine analogs and positron emission tomography or single-photon emission computed tomography offering the most promise. There is an immediate need to develop a sequential cost-effective approach that capitalizes on readily available clinical information complemented with advanced imaging modalities in selected patients to improve risk stratification for arrhythmic death beyond LV ejection fraction.
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25
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Wan N, Travin MI. Cardiac Imaging With 123I-meta-iodobenzylguanidine and Analogous PET Tracers: Current Status and Future Perspectives. Semin Nucl Med 2020; 50:331-348. [PMID: 32540030 DOI: 10.1053/j.semnuclmed.2020.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Autonomic innervation plays an important role in proper functioning of the cardiovascular system. Altered cardiac sympathetic function is present in a variety of diseases, and can be assessed with radionuclide imaging using sympathetic neurotransmitter analogues. The most studied adrenergic radiotracer is cardiac 123I-meta-iodobenzylguanidine (123I-mIBG). Cardiac 123I-mIBG uptake can be evaluated using both planar and tomographic imaging, thereby providing insight into global and regional sympathetic innervation. Standardly assessed imaging parameters are the heart-to-mediastinum ratio and washout rate, customarily derived from planar images. Focal tracer deficits on tomographic imaging also show prognostic utility, with some data suggesting that the best approach to tomographic image interpretation may differ from conventional methods. Cardiac 123I-mIBG image findings strongly correlate with the severity and prognosis of many cardiovascular diseases, especially heart failure and ventricular arrhythmias. Cardiac 123I-mIBG imaging in heart failure is FDA approved for prognostic purposes. With the robustly demonstrated ability to predict occurrence of potentially fatal arrhythmias, cardiac 123I-mIBG imaging shows promise for better selecting patients who will benefit from an implantable cardioverter defibrillator, but clinical use has been hampered by lack of the randomized trial needed for incorporation into societal guidelines. In patients with ischemic heart disease, cardiac 123I-mIBG imaging aids in assessing the extent of damage and in identifying arrhythmogenic regions. There have also been studies using cardiac 123I-mIBG for other conditions, including patients following heart transplantation, diabetic related cardiac abnormalities and chemotherapy induced cardiotoxicity. Positron emission tomographic adrenergic radiotracers, that improve image quality, have been investigated, especially 11C-meta-hydroxyephedrine, and most recently 18F-fluorbenguan. Cadmium-zinc-telluride cameras also improve image quality. With better spatial resolution and quantification, PET tracers and advanced camera technologies promise to expand the clinical utility of cardiac sympathetic imaging.
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Affiliation(s)
- Ningxin Wan
- Division of Nuclear Medicine, Department of Radiology, and Division of Cardiology, Department of Medicine, Montefiore Medical Center and The Albert Einstein College of Medicine, Bronx, NY
| | - Mark I Travin
- Division of Nuclear Medicine, Department of Radiology, and Division of Cardiology, Department of Medicine, Montefiore Medical Center and The Albert Einstein College of Medicine, Bronx, NY.
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26
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Evaluation of the arrhythmic risk in the 21st century: is multi-tracer nuclear imaging the answer? Int J Cardiol 2020; 301:119-120. [DOI: 10.1016/j.ijcard.2019.09.072] [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: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 11/22/2022]
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Kawasaki M, Yamada T, Morita T, Furukawa Y, Tamaki S, Iwasaki Y, Kikuchi A, Kawai T, Seo M, Hirota Kida, Sakata Y, Fukunami M. Prognostic value of cardiac metaiodobenzylguanidine imaging and QRS duration in implantable cardioverter defibrillator patients with and without heart failure. Int J Cardiol 2019; 296:164-171. [DOI: 10.1016/j.ijcard.2019.07.068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 05/16/2019] [Accepted: 07/22/2019] [Indexed: 01/08/2023]
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Teresińska A. Iodine-123-metaiodobenzylguanidine cardiac SPECT imaging in the qualification of heart failure patients for ICD implantation. J Nucl Cardiol 2019; 26:1182-1187. [PMID: 29696486 PMCID: PMC6660574 DOI: 10.1007/s12350-018-1288-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 04/17/2018] [Indexed: 01/06/2023]
Affiliation(s)
- Anna Teresińska
- The Cardinal Stefan Wyszyński Institute of Cardiology, Alpejska 42, 04-628, Warsaw, Poland.
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29
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Tokuda Y, Sakakibara M, Yoshinaga K, Yamada S, Kamiya K, Asakawa N, Yoshitani T, Noguchi K, Manabe O, Tamaki N, Tsutsui H. Early therapeutic effects of adaptive servo-ventilation on cardiac sympathetic nervous function in patients with heart failure evaluated using a combination of 11C-HED PET and 123I-MIBG SPECT. J Nucl Cardiol 2019; 26:1079-1089. [PMID: 29181786 PMCID: PMC6660491 DOI: 10.1007/s12350-017-1132-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 10/31/2017] [Indexed: 02/05/2023]
Abstract
RATIONALE Adaptive servo-ventilation (ASV), a novel respiratory support therapy for sleep disorders, may improve cardiac function in heart failure (HF). However, the reasons that ASV improves cardiac function have not been fully studied especially in sympathetic nervous function (SNF). The purpose of the present study was to investigate the effects of ASV therapy on cardiac SNF in patients with HF. METHODS We evaluated ASV therapeutic effects before and 6 months after ASV therapy in 9 HF patients [57.3 ± 17.3 years old, left ventricular ejection fraction (LVEF) 36.1 ± 16.7%]. We performed echocardiography, polysomnography, biomarkers, 11C-hydroxyephedrine (HED) PET as a presynaptic function marker and planar 123I-metaiodobenzylguanidine (MIBG) to evaluate washout rate. RESULTS ASV therapy reduced apnea-hypopnea index (AHI) and improved plasma brain natriuretic peptide (BNP) concentration. In 123I-MIBG imaging, the early heart/mediastinum (H/M) ratio increased after ASV therapy (2.19 ± 0.58 to 2.40 ± 0.67; P = 0.045). Washout rate did not change (23.8 ± 7.3% to 23.8 ± 8.8%; P = 0.122). Global 11C-HED retention index (RI) improved from 0.068 ± 0.033/s to 0.075 ± 0.034/s (P = 0.029). CONCLUSIONS ASV reduced AHI and improved BNP. ASV might initially improve presynaptic cardiac sympathetic nervous function in HF patients after 6 months of treatment.
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Affiliation(s)
- Yusuke Tokuda
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638 Japan
| | - Mamoru Sakakibara
- Department of Cardiovascular Medicine, Tokyo Tenshi Hospital, Tokyo, Japan
| | - Keiichiro Yoshinaga
- Diagnostic and Therapeutic Nuclear Medicine, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-Ku, Chiba, 263-8555 Japan
| | - Shiro Yamada
- Department of Cardiovascular Medicine, Otaru Kyokai Hospital, Otaru, Japan
| | - Kiwamu Kamiya
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638 Japan
| | - Naoya Asakawa
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638 Japan
| | - Takashi Yoshitani
- Department of Cardiovascular Medicine, Hakodate Neurosurgery Hospital, Hakodate, Japan
| | - Keiji Noguchi
- Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638 Japan
| | - Osamu Manabe
- Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Nagara Tamaki
- Department of Nuclear Medicine, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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De Vincentis G, Frantellizzi V, Fedele F, Farcomeni A, Scarparo P, Salvi N, Fegatelli DA, Mancone M, Verschure DO, Verberne HJ. Role of cardiac 123I-mIBG imaging in predicting arrhythmic events in stable chronic heart failure patients with an ICD. J Nucl Cardiol 2019; 26:1188-1196. [PMID: 29594915 PMCID: PMC6660500 DOI: 10.1007/s12350-018-1258-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 02/27/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Despite therapeutic improvement, the prognosis of chronic heart failure (CHF) remains unfavorable partly due to arrhythmia and sudden cardiac death (SCD). This prospective study evaluated myocardial 123I-meta-iodobenzylguanidine (123I-mIBG) scintigraphy as a predictor of arrhythmic events (AE) in CHF patients. METHODS 170 CHF patients referred for implantable cardioverter-defibrillator (ICD) implantation for both primary and secondary prevention were enrolled. All patients underwent planar and SPECT imaging. Early and late heart-to-mediastinum (H/M) ratio, 123I-mIBG washout (WO), early and late summed SPECT scores were calculated The primary endpoint was an AE: sustained ventricular tachycardia, resuscitated cardiac arrest, appropriate ICD therapy or SCD. The secondary endpoint was appropriate ICD therapy. RESULTS During a median follow-up of 23.3 months, 69 patients experienced an AE. Early summed score (ESS) was the only independent predictor of AE [HR 1.023 (1.003-1.043)]. Focussing on only patients with an ICD for primary prevention, ESS was the only independent predictor of AE [HR 1.028 (1.007-1.050)]. 123I-mIBG-derived parameters failed to be independent predictors of appropriate ICD therapy. However there was a "bell-shaped" relation between 123I-mIBG scintigraphy-derived parameters and AE and appropriate ICD therapy, i.e., those with intermediate 123I-mIBG abnormalities tended to be at higher risk of events. CONCLUSION Although SPECT 123I-mIBG scintigraphy was associated with AE in CHF patients with ICD implantation for primary and secondary prevention, no association was found between 123I-mIBG scintigraphy-derived parameters and appropriate ICD therapy.
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Affiliation(s)
- Giuseppe De Vincentis
- Department of Radiological Sciences, Oncology and Anatomo-Pathology, Sapienza - University of Rome, Rome, Italy
| | - Viviana Frantellizzi
- Department of Radiological Sciences, Oncology and Anatomo-Pathology, Sapienza - University of Rome, Rome, Italy
- Angio-Cardio-Thoracic Pathophysiology and Imaging, Sapienza - University of Rome, Rome, Italy
| | - Francesco Fedele
- Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences, Sapienza - University of Rome, Rome, Italy
| | - Alessio Farcomeni
- Department of Public Health and Infectious Diseases, Sapienza - University of Rome, Rome, Italy
| | - Paola Scarparo
- Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences, Sapienza - University of Rome, Rome, Italy
| | - Nicolò Salvi
- Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences, Sapienza - University of Rome, Rome, Italy
| | - Danilo Alunni Fegatelli
- Department of Public Health and Infectious Diseases, Sapienza - University of Rome, Rome, Italy
| | - Massimo Mancone
- Department of Cardiovascular, Respiratory, Nephrology, Anesthesiology and Geriatric Sciences, Sapienza - University of Rome, Rome, Italy
| | - Derk O. Verschure
- Department of Cardiology, Zaans Medical Center, Zaandam, The Netherlands
- Department of Radiology and Nuclear Medicine, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Hein J. Verberne
- Department of Radiology and Nuclear Medicine, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
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Cardiac sympathetic innervation scintigraphy with 123I-meta-iodobenzylguanidine. Basis, protocols and clinical applications in Cardiology. Rev Esp Med Nucl Imagen Mol 2019. [DOI: 10.1016/j.remnie.2019.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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32
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Casáns-Tormo I, Jiménez-Heffernan A, Pubul-Núñez V, Ruano-Pérez R. Cardiac sympathetic innervation scintigraphy with 123I-meta-iodobenzylguanidine. Basis, protocols and clinical applications in Cardiology. Rev Esp Med Nucl Imagen Mol 2019; 38:262-271. [PMID: 31031167 DOI: 10.1016/j.remn.2019.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 01/12/2019] [Accepted: 01/21/2019] [Indexed: 01/08/2023]
Abstract
Imaging of cardiac sympathetic innervation is only possible by nuclear cardiology techniques and its assessment is key in the evaluation of and decision-making for patients with cardiac sympathetic impairment. This review includes the basis of cardiac sympathetic scintigraphy with 123I-meta-iodobenzylguanidine (123I-MIBG), recommended protocols, patient preparation, image acquisition and quantification, reproducibility, dosimetry, etc., and also the clinical indications for cardiac patients, mainly with regard to heart failure, arrhythmia, coronary artery disease, cardiotoxicity, including its contribution to establishing the indication for and monitoring the response to implantable cardiac devices, pharmacological treatment, heart transplantation and other.
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Affiliation(s)
- I Casáns-Tormo
- Servicio de Medicina Nuclear, Hospital Clínico Universitario, Valencia, España; Grupo de Trabajo de Cardiología Nuclear de la Sociedad Española de Medicina Nuclear e Imagen Molecular.
| | - A Jiménez-Heffernan
- Grupo de Trabajo de Cardiología Nuclear de la Sociedad Española de Medicina Nuclear e Imagen Molecular; Servicio de Medicina Nuclear, Hospital Universitario Juan Ramón Jiménez, Huelva, España
| | - V Pubul-Núñez
- Grupo de Trabajo de Cardiología Nuclear de la Sociedad Española de Medicina Nuclear e Imagen Molecular; Servicio de Medicina Nuclear, Hospital Clínico Universitario, Santiago de Compostela, A Coruña, España
| | - R Ruano-Pérez
- Grupo de Trabajo de Cardiología Nuclear de la Sociedad Española de Medicina Nuclear e Imagen Molecular; Servicio de Medicina Nuclear, Hospital Clínico Universitario, Valladolid, España
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Nakajima K, Okuda K, Verberne HJ. Phase dyssynchrony and 123I-meta-iodobenzylguanidine innervation imaging towards standardization. J Nucl Cardiol 2019; 26:519-523. [PMID: 28924738 DOI: 10.1007/s12350-017-1069-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 09/08/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Kenichi Nakajima
- Department of Nuclear Medicine, Kanazawa University Hospital, Kanazawa University, 13-1 Takara-machi, Kanazawa, ZIP 920-8641, Japan.
| | - Koichi Okuda
- Department of Physics, Kanazawa Medical University, Uchinada, Kahoku, Japan
| | - Hein J Verberne
- Department of Radiology and Nuclear Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Nakajima K, Nakata T, Doi T, Kadokami T, Matsuo S, Konno T, Yamada T, Jacobson AF. Validation of 2-year 123I-meta-iodobenzylguanidine-based cardiac mortality risk model in chronic heart failure. Eur Heart J Cardiovasc Imaging 2019; 19:749-756. [PMID: 29415138 PMCID: PMC6012774 DOI: 10.1093/ehjci/jey016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Accepted: 01/16/2018] [Indexed: 01/04/2023] Open
Abstract
Aims The aim of this study was to validate a four-parameter risk model including 123I-meta-iodobenzylguanidine (MIBG) imaging, which was previously developed for predicting cardiac mortality, in a new cohort of patients with chronic heart failure (CHF). Methods and results Clinical and outcome data were retrospectively obtained from 546 patients (age 66 ± 14 years) who had undergone 123I-MIBG imaging with a heart-to-mediastinum ratio (HMR). The mean follow-up time was 30 ± 20 months, and the endpoint was cardiac death. The mortality outcome predicted by the model was compared with actual 2-year event rates in pre-specified risk categories of three or four risk groups using Kaplan–Meier survival analysis for cardiac death and receiver-operating characteristic (ROC) analysis. Cardiac death occurred in 137 patients, including 105 (68%) patients due to heart-failure death. With a 2-year mortality risk from the model divided into three categories of low- (<4%), intermediate- (4–12%), and high-risk (>12%), 2-year cardiac mortality was 1.1%, 7.9%, and 54.7%, respectively in the validation population (P < 0.0001). In a quartile analysis, although the predicted numbers of cardiac death was comparable with actual number of cardiac death for low- to intermediate-risk groups with a mortality risk <13.8%, it was underestimated in the high-risk group with a mortality risk ≥13.8%. The ROC analysis showed that the 2-year risk model had better (P < 0.0001) diagnostic ability for predicting heart failure death than left ventricular ejection fraction, natriuretic peptides or HMR alone. Conclusion The 2-year risk model was successfully validated particularly in CHF patients at a low to intermediate cardiac mortality risk.
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Affiliation(s)
- Kenichi Nakajima
- Department of Nuclear Medicine, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Tomoaki Nakata
- Department of Cardiology, Hakodate-Goryoukaku Hospital, Hakodate, Japan
| | - Takahiro Doi
- Department of Cardiology, Obihiro-Kosei Hospital, Obihiro, Japan
| | - Toshiaki Kadokami
- Department of Cardiology, Saiseikai-Futsukaichi Hospital, Tsukushino, Japan
| | - Shinro Matsuo
- Department of Nuclear Medicine, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Tetsuo Konno
- Department of Cardiology, Kanazawa University Hospital, Kanazawa, Japan
| | - Takahisa Yamada
- Department of Cardiology, Osaka Prefectural General Medical Center, Osaka, Japan
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Travin MI. Assessing arrhythmic risk with 123I-mIBG and analogous tracers: Image interpretation from a different viewpoint. J Nucl Cardiol 2019; 26:118-122. [PMID: 28681337 DOI: 10.1007/s12350-017-0968-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 06/19/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Mark I Travin
- Division of Nuclear Medicine, Department of Radiology, Montefiore Medical Center, 111 E. 210th Street, Bronx, NY, 10467-2490, USA.
- Division of Nuclear Medicine, Department of Radiology, Albert Einstein College of Medicine, Bronx, NY, USA.
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Popescu CE, Cuzzocrea M, Monaco L, Caobelli F. Assessment of myocardial sympathetic innervation by PET in patients with heart failure: a review of the most recent advances and future perspectives. Clin Transl Imaging 2018. [DOI: 10.1007/s40336-018-0293-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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AlJaroudi WA, Hage FG. Review of cardiovascular imaging in the Journal of Nuclear Cardiology 2017. Part 1 of 2: Positron emission tomography, computed tomography, and magnetic resonance. J Nucl Cardiol 2018; 25:320-330. [PMID: 29119374 DOI: 10.1007/s12350-017-1120-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 10/27/2017] [Indexed: 12/11/2022]
Abstract
Several original articles and editorials have been published in the Journal of Nuclear Cardiology in 2017. It has become a tradition at the beginning of each year to summarize some of these key articles in 2 sister reviews. In this first part one, we will discuss some of the progress made in the field of heart failure (cardio-oncology, myocardial blood flow, viability, dyssynchrony, and risk stratification), inflammation, molecular and hybrid imaging using advancement in positron emission tomography, computed tomography, and magnetic resonance imaging.
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Affiliation(s)
- Wael A AlJaroudi
- Division of Cardiovascular Medicine, Clemenceau Medical Center, Beirut, Lebanon
| | - Fadi G Hage
- Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, 306 Lyons-Harrison Research Building, 701 19th Street South, Birmingham, AL, 35294-0007, USA.
- Section of Cardiology, Birmingham Veterans Affairs Medical Center, Birmingham, AL, USA.
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Caobelli F. What future for the myocardial sympathetic innervation imaging? Eur J Nucl Med Mol Imaging 2017; 44:2299-2301. [PMID: 29046928 DOI: 10.1007/s00259-017-3847-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Federico Caobelli
- Clinic of Radiology & Nuclear Medicine, University Hospital Basel, University of Basel, Petersgraben 4, 4031, Basel, Switzerland.
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Abstract
PURPOSE OF REVIEW Autonomic innervation is crucial for regulating cardiac function. Sympathetic innervation imaging with 123I-mIBG and analogous PET tracers assesses disease in ways that differ from customary methods. This review describes practical use in various clinical scenarios, discusses recent guidelines, presents new data confirming risk stratification power, describes an ongoing prospective study, and looks forward to wider use in patient management. RECENT FINDINGS ASNC 123I-mIBG guidelines are available, expanding on European guidelines. ADMIRE-HF patient follow-up increased to 2 years in ADMIRE HFX, demonstrating independent mortality risk reclassification. ADMIRE-HF findings were substantiated in a Japanese consortium study and in the PAREPET 11C-HED PET study. Exciting potential uses of adrenergic imaging are management of LVADs and VT ablation. CZT cameras provide advantages, but derived parameters differ from Anger camera values. Independent risk stratification utility of adrenergic imaging with 123I-mIBG and PET tracers is continuously being confirmed. An ongoing prospective randomized study promises to establish patient management utility. There is potential for wider use and improved images with newer cameras and PET.
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Affiliation(s)
- Mark I Travin
- Department of Radiology/Division of Nuclear Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, 111 East-210th Street, Bronx, NY, 10467-2490, USA.
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Alvi R, Miller EJ, Zonouz TH, Sandoval V, Tariq N, Lampert R, Sinusas AJ, Liu YH. Quantification and Determination of Normal 123I-Meta Iodobenzylguanidine Heart-to-Mediastinum Ratio (HMR) from Cardiac SPECT/CT and Correlation with Planar HMR. J Nucl Med 2017; 59:652-658. [DOI: 10.2967/jnumed.117.197152] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 08/30/2017] [Indexed: 01/08/2023] Open
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Verschure DO, de Groot JR, Mirzaei S, Gheysens O, Nakajima K, van Eck-Smit BLF, Aernout Somsen G, Verberne HJ. Cardiac 123I-mIBG scintigraphy is associated with freedom of appropriate ICD therapy in stable chronic heart failure patients. Int J Cardiol 2017; 248:403-408. [PMID: 28847545 DOI: 10.1016/j.ijcard.2017.08.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 07/10/2017] [Accepted: 08/03/2017] [Indexed: 11/24/2022]
Abstract
AIM Chronic heart failure (CHF) is a life-threatening clinical syndrome, partly due to sudden cardiac death (SCD). Implantable cardioverter defibrillators (ICD) for primary prevention of SCD have improved overall survival of CHF patients. However, a high percentage of patients never receives appropriate ICD therapy. This prospective multicentre study evaluated whether cardiac sympathetic activity assessed by 123I-mIBG scintigraphy could be helpful in selecting patients for ICD implantation. MATERIALS AND METHODS 135 stable CHF subjects (age 64.5±9.3years, 79% male, LVEF 25±6%) referred for prophylactic ICD implantation were enrolled in 13 institutions. All subjects underwent planar and SPECT 123I-mIBG scintigraphy. Early and late heart-to-mediastinum (H/M) ratio, 123I-mIBG washout (WO) and late summed scores were calculated. The primary endpoint was appropriate ICD therapy. The secondary endpoint was defined as the combined endpoint of all first cardiac events: appropriate ICD therapy, progression of heart failure (HF) and cardiac death. RESULTS During a median follow-up of 30months (6-68months), 24 subjects (17.8%) experienced a first cardiac event (appropriate ICD therapy [12], HF progression [6], cardiac death [6]). Late H/M ratio and defect size of 123I-mIBG SPECT were not associated with appropriate ICD therapy. However, late H/M ratio was independently associated with the combined endpoint (HR 0.135 [0.035-0.517], p=0.001). Post-hoc analysis showed that the combination of late H/M ratio (HR 0.461 [0.281-0.757]) and LVEF (HR 1.052 [1.021-1.084]) was significantly associated with freedom of appropriate ICD therapy (p<0.001). CONCLUSION 123I-mIBG scintigraphy seems to be helpful in selecting CHF subjects who might not benefit from ICD implantation.
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Affiliation(s)
- Derk O Verschure
- Department of Nuclear Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; Department of Cardiology, Zaans Medical Center, Zaandam, The Netherlands.
| | - Joris R de Groot
- Heart Center, Department of Cardiology Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Siroos Mirzaei
- Department of Nuclear Medicine, Wilhelminenspital, Vienna, Austria
| | - Olivier Gheysens
- Department of Nuclear Medicine and Molecular Imaging, University Hospitals Leuven, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium
| | - Kenichi Nakajima
- Department of Nuclear Medicine, Kanazawa University Hospital, Kanazawa, Japan
| | - Berthe L F van Eck-Smit
- Department of Nuclear Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - G Aernout Somsen
- Cardiology Centers of the Netherlands, Amsterdam, The Netherlands
| | - Hein J Verberne
- Department of Nuclear Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Nakajima K, Verschure DO, Okuda K, Verberne HJ. Standardization of 123I- meta-iodobenzylguanidine myocardial sympathetic activity imaging: phantom calibration and clinical applications. Clin Transl Imaging 2017; 5:255-263. [PMID: 28596948 PMCID: PMC5437131 DOI: 10.1007/s40336-017-0230-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 04/19/2017] [Indexed: 11/12/2022]
Abstract
PURPOSE Myocardial sympathetic imaging with 123I-meta-iodobenzylguanidine (123I-mIBG) has gained clinical momentum. Although the need for standardization of 123I-mIBG myocardial uptake has been recognized, the availability of practical clinical standardization approaches is limited. The need for standardization includes the heart-to-mediastinum ratio (HMR) and washout rate with planar imaging, and myocardial defect scoring with single-photon emission computed tomography (SPECT). METHODS The planar HMR shows considerable variation due to differences in collimator design. These camera-collimator differences can be overcome by cross-calibration phantom experiments. The principles of these cross-calibration phantom experiments are summarized in this article. 123I-mIBG SPECT databases were compiled by Japanese Society of Nuclear Medicine working group. Literature was searched based on the words "123I-mIBG quantification method", "standardization", "heart-to-mediastinum ratio", and its application to "risk model". RESULTS Calibration phantom experiments have been successfully performed in Japan and Europe. The benefit of these cross-calibration phantom experiments is that variation in the HMR between institutions is minimized including low-energy, low-medium-energy and medium-energy collimators. The use of myocardial 123I-mIBG SPECT can be standardized using 123I-mIBG normal databases as a basis for quantitative evaluation. This standardization method can be applied in cardiac event prediction models. CONCLUSION Standardization of myocardial 123I-mIBG outcome parameters may facilitate a universal implementation of myocardial 123I-mIBG scintigraphy.
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Affiliation(s)
- Kenichi Nakajima
- Department of Nuclear Medicine, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641 Japan
| | - Derk O. Verschure
- Department of Nuclear Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
- Department of Cardiology, Zaans Medical Center, Zaandam, The Netherlands
| | - Koichi Okuda
- Department of Physics, Kanazawa Medical University, Uchinada, Kahoku, Japan
| | - Hein J. Verberne
- Department of Nuclear Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Verschure DO, van Eck-Smit BLF, Somsen GA, Knol RJJ, Verberne HJ. Cardiac sympathetic activity in chronic heart failure: cardiac 123I-mIBG scintigraphy to improve patient selection for ICD implantation. Neth Heart J 2016; 24:701-708. [PMID: 27677744 PMCID: PMC5120011 DOI: 10.1007/s12471-016-0902-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Heart failure is a life-threatening disease with a growing incidence in the Netherlands. This growing incidence is related to increased life expectancy, improvement of survival after myocardial infarction and better treatment options for heart failure. As a consequence, the costs related to heart failure care will increase. Despite huge improvements in treatment, the prognosis remains unfavourable with high one-year mortality rates. The introduction of implantable devices such as implantable cardioverter defibrillators (ICD) and cardiac resynchronisation therapy (CRT) has improved the overall survival of patients with chronic heart failure. However, after ICD implantation for primary prevention in heart failure a high percentage of patients never have appropriate ICD discharges. In addition 25–50 % of CRT patients have no therapeutic effect. Moreover, both ICDs and CRTs are associated with malfunction and complications (e. g. inappropriate shocks, infection). Last but not least is the relatively high cost of these devices. Therefore, it is essential, not only from a clinical but also from a socioeconomic point of view, to optimise the current selection criteria for ICD and CRT. This review focusses on the role of cardiac sympathetic hyperactivity in optimising ICD selection criteria. Cardiac sympathetic hyperactivity is related to fatal arrhythmias and can be non-invasively assessed with 123I-meta-iodobenzylguanide (123I-mIBG) scintigraphy. We conclude that cardiac sympathetic activity assessed with 123I-mIBG scintigraphy is a promising tool to better identify patients who will benefit from ICD implantation.
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Affiliation(s)
- D O Verschure
- Department of Nuclear Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands. .,Department of Cardiology, Zaans Medical Center, Zaandam, The Netherlands.
| | - B L F van Eck-Smit
- Department of Nuclear Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - G A Somsen
- Cardiology Centres of the Netherlands, Amsterdam, The Netherlands
| | - R J J Knol
- Department of Nuclear Medicine, Noordwest Ziekenhuisgroep, Alkmaar, The Netherlands
| | - H J Verberne
- Department of Nuclear Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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