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Wang F, Hong ST, Zhang Y, Xing Z, Lin YX. 18F-FDG-PET/CT for Localizing the Epileptogenic Focus in Patients with Different Types of Focal Cortical Dysplasia. Neuropsychiatr Dis Treat 2024; 20:211-220. [PMID: 38333612 PMCID: PMC10849898 DOI: 10.2147/ndt.s442459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/28/2023] [Indexed: 02/10/2024] Open
Abstract
Purpose To determine the diagnostic and localization value of 18F-fluorodeoxyglucose-positron emission tomography (PET)/computed tomography (CT) in patients with focal cortical dysplasia (FCD) who underwent epilepsy surgery. Methods One hundred and eight patients with pathologically proven FCD who underwent surgery for refractory epilepsy were retrospectively analyzed. All patients underwent magnetic resonance imaging (MRI), 18F-FDG-PET/CT, and video electroencephalography. An MRI diagnosis of FCD was defined as MRI+. A PET/CT diagnosis of FCD was defined as PET/CT+. Results MRI and PET/CT detected FCD in 20.37% and 93.52% of patients, respectively. The difference was significant. Twenty-one patients were MRI+/PET+, 80 were MRI-/PET+, six were MRI-/PET-, and one was MRI+/PET-. The MRI positivity rate was lowest in patients with FCD type IIIa (5.6%, P < 0.05). Prevalence of MRI-/PET+ was highest in patients with FCD type IIIa (88.89%, P < 0.05). Conclusion PET/CT is superior to MRI in detecting FCD. FCD type IIIa was more likely than other types to show MRI-/PET+. This suggests that PET/CT has particular diagnostic value for FCD type IIIa patients with negative MRI findings.
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Affiliation(s)
- Feng Wang
- Neurosurgery Department, the First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, People’s Republic of China
| | - Shu-Ting Hong
- Neurosurgery Department, the First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, People’s Republic of China
| | - Ying Zhang
- Nuclear Medicine Department, the First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, People’s Republic of China
| | - Zhen Xing
- Radiology Department, the First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, People’s Republic of China
| | - Yuan-Xiang Lin
- Neurosurgery Department, the First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, People’s Republic of China
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2
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Cruz-Cortes Á, Avendaño-Estrada A, Alcauter S, Núñez-Enríquez JC, Rivera-Bravo B, Olarte-Casas MÁ, Ávila-Rodríguez MÁ. Semiquantitative analysis of cerebral [ 18F]FDG-PET uptake in pediatric patients. Pediatr Radiol 2023; 53:2574-2585. [PMID: 37910188 PMCID: PMC10698097 DOI: 10.1007/s00247-023-05794-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 10/11/2023] [Accepted: 10/16/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND Glycolytic metabolism in the brain of pediatric patients, imaged with [18F] fluorodeoxyglucose-positron emission tomography (FDG-PET) is incompletely characterized. OBJECTIVE The purpose of the current study was to characterize [18F]FDG-PET brain uptake in a large sample of pediatric patients with non-central nervous system diseases as an alternative to healthy subjects to evaluate changes at different pediatric ages. MATERIALS AND METHODS Seven hundred ninety-five [18F]FDG-PET examinations from children < 18 years of age without central nervous system diseases were included. Each brain image was spatially normalized, and the standardized uptake value (SUV) was obtained. The SUV and the SUV relative to different pseudo-references were explored as a function of age. RESULTS At all evaluated ages, the occipital lobe showed the highest [18F]FDG uptake (0.27 ± 0.04 SUV/year), while the parietal lobe and brainstem had the lowest uptake (0.17 ± 0.02 SUV/year, for both regions). An increase [18F]FDG uptake was found for all brain regions until 12 years old, while no significant uptake differences were found between ages 13 (SUV = 5.39) to 17 years old (SUV = 5.52) (P < 0.0001 for the whole brain). A sex dependence was found in the SUVmean for the whole brain during adolescence (SUV 5.04-5.25 for males, 5.68-5.74 for females, P = 0.0264). Asymmetries in [18F]FDG uptake were found in the temporal and central regions during infancy. CONCLUSIONS Brain glycolytic metabolism of [18F]FDG, measured through the SUVmean, increased with age until early adolescence (< 13 years old), showing differences across brain regions. Age, sex, and brain region influence [18F]FDG uptake, with significant hemispheric asymmetries for temporal and central regions.
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Affiliation(s)
- Álvaro Cruz-Cortes
- Unidad de Radiofarmacia-Ciclotrón, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - Arturo Avendaño-Estrada
- Unidad de Radiofarmacia-Ciclotrón, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico.
| | - Sarael Alcauter
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Querétaro City, Mexico
| | - Juan Carlos Núñez-Enríquez
- Unidad de Investigación Médica en Epidemiología Clínica, UMAE Hospital de Pediatría, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Ciudad de Mexico, Mexico
| | - Belen Rivera-Bravo
- División de Investigación Facultad de Medicina Universidad Nacional Autónoma de México, Unidad PET/CT, Ciudad de Mexico, Mexico
| | - Miguel Ángel Olarte-Casas
- División de Investigación Facultad de Medicina Universidad Nacional Autónoma de México, Unidad PET/CT, Ciudad de Mexico, Mexico
| | - Miguel Ángel Ávila-Rodríguez
- Unidad de Radiofarmacia-Ciclotrón, División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
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Piccardo A, Albert NL, Borgwardt L, Fahey FH, Hargrave D, Galldiks N, Jehanno N, Kurch L, Law I, Lim R, Lopci E, Marner L, Morana G, Young Poussaint T, Seghers VJ, Shulkin BL, Warren KE, Traub-Weidinger T, Zucchetta P. Joint EANM/SIOPE/RAPNO practice guidelines/SNMMI procedure standards for imaging of paediatric gliomas using PET with radiolabelled amino acids and [ 18F]FDG: version 1.0. Eur J Nucl Med Mol Imaging 2022; 49:3852-3869. [PMID: 35536420 PMCID: PMC9399211 DOI: 10.1007/s00259-022-05817-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 04/23/2022] [Indexed: 01/18/2023]
Abstract
Positron emission tomography (PET) has been widely used in paediatric oncology. 2-Deoxy-2-[18F]fluoro-D-glucose ([18F]FDG) is the most commonly used radiopharmaceutical for PET imaging. For oncological brain imaging, different amino acid PET radiopharmaceuticals have been introduced in the last years. The purpose of this document is to provide imaging specialists and clinicians guidelines for indication, acquisition, and interpretation of [18F]FDG and radiolabelled amino acid PET in paediatric patients affected by brain gliomas. There is no high level of evidence for all recommendations suggested in this paper. These recommendations represent instead the consensus opinion of experienced leaders in the field. Further studies are needed to reach evidence-based recommendations for the applications of [18F]FDG and radiolabelled amino acid PET in paediatric neuro-oncology. These recommendations are not intended to be a substitute for national and international legal or regulatory provisions and should be considered in the context of good practice in nuclear medicine. The present guidelines/standards were developed collaboratively by the EANM and SNMMI with the European Society for Paediatric Oncology (SIOPE) Brain Tumour Group and the Response Assessment in Paediatric Neuro-Oncology (RAPNO) working group. They summarize also the views of the Neuroimaging and Oncology and Theranostics Committees of the EANM and reflect recommendations for which the EANM and other societies cannot be held responsible.
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Affiliation(s)
- Arnoldo Piccardo
- Department of Nuclear Medicine, E.O. "Ospedali Galliera", Genoa, Italy
| | - Nathalie L Albert
- Department of Nuclear Medicine, University Hospital of LMU Munich, Munich, Germany
| | - Lise Borgwardt
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Frederic H Fahey
- Department of Radiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Darren Hargrave
- Department of Paediatric Oncology, Great Ormond Street Hospital NHS Trust, London, UK
| | - Norbert Galldiks
- Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Institute of Neuroscience and Medicine (INM-3), Research Center Juelich, Juelich, Germany
| | - Nina Jehanno
- Department of Nuclear Medicine, Institut Curie Paris, Paris, France
| | - Lars Kurch
- Department of Nuclear Medicine, University Hospital Leipzig, Leipzig, Germany.
| | - Ian Law
- Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Ruth Lim
- Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
| | - Egesta Lopci
- Nuclear Medicine Unit, IRCCS-Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milano, Italy
| | - Lisbeth Marner
- Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark
| | - Giovanni Morana
- Department of Neurosciences, University of Turin, Turin, Italy
| | - Tina Young Poussaint
- Department of Radiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Victor J Seghers
- Singleton Department of Pediatric Radiology, Texas Children's Hospital, Houston, TX, USA
- Department of Radiology, Baylor College of Medicine, Houston, TX, USA
| | - Barry L Shulkin
- Nuclear Medicine Department of Diagnostic Imaging St. Jude Children's Research Hospital, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Katherine E Warren
- Department of Pediatric Oncology, Dana Farber Cancer Institute, Boston, MA, USA
| | - Tatjana Traub-Weidinger
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Pietro Zucchetta
- Nuclear Medicine Unit, Department of Medicine - DIMED, University Hospital of Padova, Padua, Italy
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Zhang T, Li Y, Zhao S, Xu Y, Zhang X, Wu S, Dou X, Yu C, Feng J, Ding Y, Zhu J, Chen Z, Zhang H, Tian M. High-resolution pediatric age-specific 18F-FDG PET template: a pilot study in epileptogenic focus localization. Eur J Nucl Med Mol Imaging 2021; 49:1560-1573. [PMID: 34746970 PMCID: PMC8940757 DOI: 10.1007/s00259-021-05611-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/28/2021] [Indexed: 12/16/2022]
Abstract
Background PET imaging has been widely used in diagnosis of neurological disorders; however, its application to pediatric population is limited due to lacking pediatric age–specific PET template. This study aims to develop a pediatric age–specific PET template (PAPT) and conduct a pilot study of epileptogenic focus localization in pediatric epilepsy. Methods We recruited 130 pediatric patients with epilepsy and 102 age-matched controls who underwent 18F-FDG PET examination. High-resolution PAPT was developed by an iterative nonlinear registration-averaging optimization approach for two age ranges: 6–10 years (n = 17) and 11–18 years (n = 50), respectively. Spatial normalization to the PAPT was evaluated by registration similarities of 35 validation controls, followed by estimation of potential registration biases. In a pilot study, epileptogenic focus was localized by PAPT-based voxel-wise statistical analysis, compared with multi-disciplinary team (MDT) diagnosis, and validated by follow-up of patients who underwent epilepsy surgery. Furthermore, epileptogenic focus localization results were compared among three templates (PAPT, conventional adult template, and a previously reported pediatric linear template). Results Spatial normalization to the PAPT significantly improved registration similarities (P < 0.001), and nearly eliminated regions of potential biases (< 2% of whole brain volume). The PAPT-based epileptogenic focus localization achieved a substantial agreement with MDT diagnosis (Kappa = 0.757), significantly outperforming localization based on the adult template (Kappa = 0.496) and linear template (Kappa = 0.569) (P < 0.05). The PAPT-based localization achieved the highest detection rate (89.2%) and accuracy (80.0%). In postsurgical seizure-free patients (n = 40), the PAPT-based localization also achieved a substantial agreement with resection areas (Kappa = 0.743), and the highest detection rate (95%) and accuracy (80.0%). Conclusion The PAPT can significantly improve spatial normalization and epileptogenic focus localization in pediatric epilepsy. Future pediatric neuroimaging studies can also benefit from the unbiased spatial normalization by PAPT. Trial registration. NCT04725162: https://clinicaltrials.gov/ct2/show/NCT04725162 Supplementary Information The online version contains supplementary material available at 10.1007/s00259-021-05611-w.
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Affiliation(s)
- Teng Zhang
- Department of Nuclear Medicine and Medical PET Center, The Second Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China.,Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, China
| | - Yuting Li
- Department of Nuclear Medicine and Medical PET Center, The Second Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China.,Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, China
| | - Shuilin Zhao
- Department of Nuclear Medicine and Medical PET Center, The Second Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China.,Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, China
| | - Yuanfan Xu
- Hangzhou Universal Medical Imaging Diagnostic Center, Hangzhou, China
| | - Xiaohui Zhang
- Department of Nuclear Medicine and Medical PET Center, The Second Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China.,Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, China
| | - Shuang Wu
- Department of Nuclear Medicine and Medical PET Center, The Second Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China
| | - Xiaofeng Dou
- Department of Nuclear Medicine and Medical PET Center, The Second Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China
| | - Congcong Yu
- Department of Nuclear Medicine and Medical PET Center, The Second Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China
| | - Jianhua Feng
- Department of Pediatrics, The Second Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yao Ding
- Department of Neurology, Epilepsy Center, The Second Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Junming Zhu
- Department of Neurosurgery, The Second Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zexin Chen
- Center of Clinical Epidemiology & Biostatistics, The Second Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hong Zhang
- Department of Nuclear Medicine and Medical PET Center, The Second Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China. .,Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China. .,Key Laboratory for Biomedical Engineering of Ministry of Education, Zhejiang University, Hangzhou, China. .,The College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou, China.
| | - Mei Tian
- Department of Nuclear Medicine and Medical PET Center, The Second Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China. .,Institute of Nuclear Medicine and Molecular Imaging of Zhejiang University, Hangzhou, China.
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5
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Abstract
BACKGROUND A large number of patients have epilepsy that is intractable and adversely affects a child's lifelong experience with addition societal burden that is disabling and expensive. The last two decades have seen a major explosion of new antiseizure medication options. Despite these advances, children with epilepsy continue to have intractable seizures. An option that has been long available but little used is epilepsy surgery to control intractable epilepsy. METHODS This article is a review of the literature as well as published opinions. RESULTS Epilepsy surgery in pediatrics is an underused modality to effectively treat children with epilepsy. Adverse effects of medication should be weighed against risks of surgery as well as risks of nonefficacy. CONCLUSIONS We discuss an approach to selecting the appropriate pediatric patient for consideration, a detailed evaluation including necessary evaluation, and the creation of an algorithm to approach patients with both generalized and focal epilepsy. We then discuss surgical options available including outcome data. New modalities are also addressed including high-frequency ultrasound and co-registration techniques including magnetic resonance imaging-guided laser therapy.
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Brain metabolic characteristics distinguishing typical and atypical benign epilepsy with centro-temporal spikes. Eur Radiol 2021; 31:9335-9345. [PMID: 34050803 DOI: 10.1007/s00330-021-08051-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 03/24/2021] [Accepted: 05/05/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES Atypical benign epilepsy with centro-temporal spikes (BECTS) have less favorable outcomes than typical BECTS, and thus should be accurately identified for adequate treatment. We aimed to investigate the glucose metabolic differences between typical and atypical BECTS using 18F-fluorodeoxyglucose positron emission tomography ([18F]FDG PET) imaging, and explore whether these differences can help distinguish. METHODS Forty-six patients with typical BECTS, 31 patients with atypical BECTS and 23 controls who underwent [18F]FDG PET examination were retrospectively involved. Absolute asymmetry index (|AI|) was applied to evaluate the severity of metabolic abnormality. Glucose metabolic differences were investigated among typical BECTS, atypical BECTS, and controls by using statistical parametric mapping (SPM). Logistic regression analyses were performed based on clinical, PET, and hybrid features. RESULTS The |AI| was found significantly higher in atypical BECTS than in typical BECTS (p = 0.040). Atypical BECTS showed more hypo-metabolism regions than typical BECTS, mainly located in the fronto-temporo-parietal cortex. The PET model had significantly higher area under the curve (AUC) than the clinical model (0.91 vs. 0.70, p = 0.006). The hybrid model had the highest sensitivity (0.90), specificity (0.85), and accuracy (0.87) of all three models. CONCLUSIONS Atypical BECTS showed more widespread and severe hypo-metabolism than typical BECTS, depending on which the two groups can be well distinguished. The combination of metabolic characteristics and clinical variables has the potential to be used clinically to distinguish between typical and atypical BECTS. KEY POINTS • Distinguishing between typical and atypical BECTS is very important for the formulation of treatment regimens in clinical practice. • Atypical BECTS showed more widespread and severe hypo-metabolism than typical BECTS, mainly located in the fronto-temporo-parietal cortex. • The logistic regression model based on PET outperformed that based on clinical characteristics in classification of typical and atypical BECTS, and the hybrid model achieved the best classification performance.
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7
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Liu F, Ruan W, Deng X, Song Y, Song W, Hu F, Guo J, Lan X. Efficacy of delayed 18F-FDG hybrid PET/MRI for epileptic focus identification: a prospective cohort study. Eur J Nucl Med Mol Imaging 2020; 48:293-301. [PMID: 32583012 DOI: 10.1007/s00259-020-04935-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 06/17/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVE We sought to investigate the contribution of delayed 18F-FDG imaging data to epileptogenic zone (EZ) identification using a hybrid positron emission tomography/magnetic resonance imaging (PET/MRI) system. METHODS Forty-one patients with epilepsy underwent a brain dual time point 18F-FDG PET/MRI examination. All early imaging was acquired at approximately 40 min. Late imaging was classified as short delay (150.1 ± 20.2 min) or long delay (247.8 ± 24.6 min). Visual evaluation and scoring of 18F-FDG uptake at dual time points were performed. An SUVmean asymmetry index (AI) was calculated representing the difference in uptake between the EZ and the contralateral side. The EZ location was defined by a multidisciplinary team based on findings on video electroencephalography, 18F-FDG, and MRI. EZ location was classified as extratemporal lobe epilepsy (extra-TLE) or temporal lobe epilepsy (TLE). MRI findings were classified as positive if there were signal/structural abnormalities, or negative. AI of dual time points was compared between MRI-positive and MRI-negative, between extra-TLE and TLE, and between short delay and long delay of the late imaging time point. RESULTS The AI at the delayed time points was increased by a mean of 3.7 over the early time point in all patients (P < 0.01). The biggest AIs were found in the MRI-positive group. The ΔAI between two imaging points were 3.71 ± 3.50 and 4.67 ± 7.94 for MRI-positive and MRI-negative; 4.52 ± 6.70 and 2.51 ± 2.42 for extra-TLE and TLE; and 4.24 ± 6.52 and 3.46 ± 2.90 for short delay and long delay groups, respectively. There were more patients with increased AI at the delayed time with MRI-positive (95.8%, 23/24), with extra-TLE (96.8%, 30/31), and with short delay time (93.7%, 30/32). Two observers who had no knowledge of the images chose 85.4% and 82.9% of the delay-time point images as the more obvious asymmetry from all images. The kappa value between the two observers was 0.66 with good agreement. CONCLUSION Delayed 18F-FDG PET imaging can be used to better identify EZs with relatively greater metabolic asymmetry between the EZ and contralateral regions.
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Affiliation(s)
- Fang Liu
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Ave, Wuhan, 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Weiwei Ruan
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Ave, Wuhan, 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Xuejun Deng
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yangmeihui Song
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Ave, Wuhan, 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Wenyu Song
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Ave, Wuhan, 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | - Fan Hu
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Ave, Wuhan, 430022, China.,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China
| | | | - Xiaoli Lan
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 1277 Jiefang Ave, Wuhan, 430022, China. .,Hubei Province Key Laboratory of Molecular Imaging, Wuhan, 430022, China.
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8
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Sarikaya I, Sarikaya A, Sharma P. Assessing the Effect of Various Blood Glucose Levels on 18F-FDG Activity in the Brain, Liver, and Blood Pool. J Nucl Med Technol 2019; 47:313-318. [PMID: 31182660 DOI: 10.2967/jnmt.119.226969] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 04/16/2019] [Indexed: 12/17/2022] Open
Abstract
Studies have extensively analyzed the effect of hyperglycemia on 18F-FDG uptake in normal tissues and tumors. In this study, we measured SUV in the brain, liver, and blood pool in normoglycemia, hyperglycemia, and hypoglycemia to understand the effect of blood glucose on 18F-FDG uptake and to develop a formula to correct SUV. Methods: Whole-body 18F-FDG PET/CT images of adults were selected for analysis. Brain SUVmax, blood-pool SUVmean, and liver SUVmean were measured at blood glucose ranges of 61-70, 71-80, 81-90, 91-100, 101-110, 111-120, 121-130, 131-140, 141-150, 151-160, 161-170, 171-180, 181-190, 191-200, and 201 mg/dL and above. At each blood glucose range, 10 PET images were analyzed (total, 150). The mean (±SD) SUV of the brain, liver, and blood pool at each blood glucose range was calculated, and blood glucose and SUV curves were generated. Because brain and tumors show a high expression of glucose transporters 1 and 3, we generated an SUV correction formula based on percentage reduction in brain SUVmax with increasing blood glucose level. Results: Mean brain SUVmax gradually decreased with increasing blood glucose level, starting after a level of 110 mg/dL. The approximate percentage reduction in brain SUVmax was 20%, 35%, 50%, 60%, and 65% at blood glucose ranges of 111-120, 121-140, 141-160, 161-200, and 201 mg/dL and above, respectively. In the formula we generated, measured SUVmax is multiplied by a reduction factor of 1.25, 1.5, 2, 2.5, and 2.8 for the blood glucose ranges of 111-120, 121-140, 141-160, 161-200, and 201 mg/dL and above, respectively, to correct SUV. Brain SUVmax did not differ between hypoglycemic and normoglycemic patients (P > 0.05). SUVmean in the blood pool and liver was lower in hypoglycemic patients (P < 0.05) and did not differ between hyperglycemic (P > 0.05) and normoglycemic patients. Conclusion: Hyperglycemia gradually reduces brain 18F-FDG uptake, starting after a blood glucose level of 110 mg/dL. Hyperglycemia does not affect 18F-FDG activity in the liver or blood pool. Hypoglycemia does not seem to affect brain 18F-FDG uptake but appears to reduce liver and blood-pool activity. The simple formula we generated can be used to correct SUV in hyperglycemic adults in selected cases.
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Affiliation(s)
- Ismet Sarikaya
- Department of Nuclear Medicine, Kuwait University Faculty of Medicine, Safat, Kuwait
| | - Ali Sarikaya
- Department of Nuclear Medicine, Trakya University Faculty of Medicine, Edirne, Turkey; and
| | - Prem Sharma
- Dasman Diabetes Institute, Biostatistics Unit, Al Kuwayt, Kuwait
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9
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Nagesh C, Kumar S, Menon R, Thomas B, Radhakrishnan A, Kesavadas C. The Imaging of Localization Related Symptomatic Epilepsies: The Value of Arterial Spin Labelling Based Magnetic Resonance Perfusion. Korean J Radiol 2018; 19:965-977. [PMID: 30174487 PMCID: PMC6082755 DOI: 10.3348/kjr.2018.19.5.965] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 03/19/2018] [Indexed: 11/15/2022] Open
Abstract
Accurate identification of the epileptogenic zone is an important prerequisite in presurgical evaluation of refractory epilepsy since it affects seizure-free outcomes. Apart from structural magnetic resonance imaging (sMRI), delineation has been traditionally done with electroencephalography and nuclear imaging modalities. Arterial spin labelling (ASL) sequence is a non-contrast magnetic resonance perfusion technique capable of providing similar information. Similar to single-photon emission computed tomography, its utility in epilepsy is based on alterations in perfusion linked to seizure activity by neurovascular coupling. In this article, we discuss complementary value that ASL can provide in the evaluation and characterization of some basic substrates underlying epilepsy. We also discuss the role that ASL may play in sMRI negative epilepsy and acute scenarios such as status epilepticus.
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Affiliation(s)
- Chinmay Nagesh
- Department of Imaging Sciences & Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences & Technology (SCTIMST), Trivandrum 695011, India
| | - Savith Kumar
- Department of Imaging Sciences & Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences & Technology (SCTIMST), Trivandrum 695011, India
| | - Ramshekhar Menon
- Comprehensive Epilepsy Centre, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences & Technology (SCTIMST), Trivandrum 695011, India
| | - Bejoy Thomas
- Department of Imaging Sciences & Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences & Technology (SCTIMST), Trivandrum 695011, India
| | - Ashalatha Radhakrishnan
- Comprehensive Epilepsy Centre, Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences & Technology (SCTIMST), Trivandrum 695011, India
| | - Chandrasekharan Kesavadas
- Department of Imaging Sciences & Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences & Technology (SCTIMST), Trivandrum 695011, India
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10
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Jeong JW, Asano E, Kumar Pilli V, Nakai Y, Chugani HT, Juhász C. Objective 3D surface evaluation of intracranial electrophysiologic correlates of cerebral glucose metabolic abnormalities in children with focal epilepsy. Hum Brain Mapp 2017; 38:3098-3112. [PMID: 28322026 DOI: 10.1002/hbm.23577] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 03/01/2017] [Accepted: 03/09/2017] [Indexed: 12/27/2022] Open
Abstract
To determine the spatial relationship between 2-deoxy-2[18 F]fluoro-D-glucose (FDG) metabolic and intracranial electrophysiological abnormalities in children undergoing two-stage epilepsy surgery, statistical parametric mapping (SPM) was used to correlate hypo- and hypermetabolic cortical regions with ictal and interictal electrocorticography (ECoG) changes mapped onto the brain surface. Preoperative FDG-PET scans of 37 children with intractable epilepsy (31 with non-localizing MRI) were compared with age-matched pseudo-normal pediatric control PET data. Hypo-/hypermetabolic maps were transformed to 3D-MRI brain surface to compare the locations of metabolic changes with electrode coordinates of the ECoG-defined seizure onset zone (SOZ) and interictal spiking. While hypometabolic clusters showed a good agreement with the SOZ on the lobar level (sensitivity/specificity = 0.74/0.64), detailed surface-distance analysis demonstrated that large portions of ECoG-defined SOZ and interictal spiking area were located at least 3 cm beyond hypometabolic regions with the same statistical threshold (sensitivity/specificity = 0.18-0.25/0.94-0.90 for overlap 3-cm distance); for a lower threshold, sensitivity for SOZ at 3 cm increased to 0.39 with a modest compromise of specificity. Performance of FDG-PET SPM was slightly better in children with smaller as compared with widespread SOZ. The results demonstrate that SPM utilizing age-matched pseudocontrols can reliably detect the lobe of seizure onset. However, the spatial mismatch between metabolic and EEG epileptiform abnormalities indicates that a more complete SOZ detection could be achieved by extending intracranial electrode coverage at least 3 cm beyond the metabolic abnormality. Considering that the extent of feasible electrode coverage is limited, localization information from other modalities is particularly important to optimize grid coverage in cases of large hypometabolic cortex. Hum Brain Mapp 38:3098-3112, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Jeong-Won Jeong
- Departments of Pediatrics and Neurology, School of Medicine, Wayne State University, Detroit, Michigan.,Translational Imaging Laboratory, PET Center, Children's Hospital of Michigan, Detroit, Michigan
| | - Eishi Asano
- Departments of Pediatrics and Neurology, School of Medicine, Wayne State University, Detroit, Michigan
| | - Vinod Kumar Pilli
- Departments of Pediatrics and Neurology, School of Medicine, Wayne State University, Detroit, Michigan.,Translational Imaging Laboratory, PET Center, Children's Hospital of Michigan, Detroit, Michigan
| | - Yasuo Nakai
- Departments of Pediatrics and Neurology, School of Medicine, Wayne State University, Detroit, Michigan
| | - Harry T Chugani
- Department of Neurology, Nemours DuPont Hospital for Children, Wilmington, Delaware.,Thomas Jefferson University School of Medicine, Philadelphia, Pennysylvania
| | - Csaba Juhász
- Departments of Pediatrics and Neurology, School of Medicine, Wayne State University, Detroit, Michigan.,Translational Imaging Laboratory, PET Center, Children's Hospital of Michigan, Detroit, Michigan
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11
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Parisi MT, Bermo MS, Alessio AM, Sharp SE, Gelfand MJ, Shulkin BL. Optimization of Pediatric PET/CT. Semin Nucl Med 2017; 47:258-274. [PMID: 28417855 DOI: 10.1053/j.semnuclmed.2017.01.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PET/CT, the most common form of hybrid imaging, has transformed oncologic imaging and is increasingly being used for nononcologic applications as well. Performing PET/CT in children poses unique challenges. Not only are children more sensitive to the effects of radiation than adults but, following radiation exposure, children have a longer postexposure life expectancy in which to exhibit adverse radiation effects. Both the PET and CT components of the study contribute to the total patient radiation dose, which is one of the most important risks of the study in this population. Another risk in children, not typically encountered in adults, is potential neurotoxicity related to the frequent need for general anesthesia in this patient population. Optimizing pediatric PET/CT requires making improvements to both the PET and the CT components of the procedure while decreasing the potential for risk. This can be accomplished through judicious performance of imaging, the use of recommended pediatric 18fluorine-2-fluoro-2-deoxy-d-glucose (18F-FDG) administered activities, thoughtful selection of pediatric-specific CT imaging parameters, careful patient preparation, and use of appropriate patient immobilization. In this article, we will review a variety of strategies for radiation dose optimization in pediatric 18F-FDG-PET/CT focusing on these processes. Awareness of and careful selection of pediatric-specific CT imaging parameters designed for appropriate diagnostic, localization, or attenuation correction only CT, in conjunction with the use of recommended radiotracer administered activities, will help to ensure image quality while limiting patient radiation exposure. Patient preparation, an important determinant of image quality, is another focus of this review. Appropriate preparative measures are even more crucial in children in whom there is a higher incidence of brown fat, which can interfere with study interpretation. Finally, we will discuss measures to improve the patient experience, the resource use, the departmental workflow, and the diagnostic performance of the study through the use of appropriate technology, all in the context of minimizing procedure-related risks.
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Affiliation(s)
- Marguerite T Parisi
- Departments of Radiology, University of Washington School of Medicine, Seattle Children's Hospital, Seattle, WA; Departments of Pediatrics, University of Washington School of Medicine and Seattle Children's Hospital, Seattle, WA.
| | - Mohammed S Bermo
- Department of Nuclear Medicine, University of Washington School of Medicine, Seattle, WA
| | - Adam M Alessio
- Departments of Radiology, University of Washington School of Medicine, Seattle Children's Hospital, Seattle, WA
| | - Susan E Sharp
- Departments of Radiology, University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinatti, OH
| | - Michael J Gelfand
- Departments of Radiology, University of Cincinnati College of Medicine and Cincinnati Children's Hospital Medical Center, Cincinatti, OH
| | - Barry L Shulkin
- Department of Diagnostic Imaging, St. Jude Children's Research Hospital, Memphis, TN
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12
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Ho ML, Patton AC, DeLone DR, Kim H, Gilbertson JR, Felmlee J, Watson RE. Brain Injury in the Preterm and Term Neonate. CURRENT RADIOLOGY REPORTS 2016. [DOI: 10.1007/s40134-016-0161-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Arterial Spin Labeling Techniques 2009-2014. J Med Imaging Radiat Sci 2016; 47:98-107. [PMID: 31047171 DOI: 10.1016/j.jmir.2015.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 07/03/2015] [Accepted: 08/18/2015] [Indexed: 12/23/2022]
Abstract
PURPOSE Arterial spin labeling (ASL) techniques have been implemented across a diverse range of clinical and experimental applications. This review aims to evaluate the current feasibility of ASL in clinical neuroradiology based on recent improvements to ASL sequences and highlight areas for potential clinical applications. METHODS AND MATERIALS In December 2014, a literature search was conducted on PubMed Central, EMBASE, and Scopus using the search terms: "arterial spin labeling, neuroradiology," for studies published between 2009 and 2014 (inclusive). Of 483 studies matching the inclusion criteria, the number of studies using continuous, pseudocontinuous, pulsed, and velocity-selective ASL sequences was 42, 209, 226, and 3, respectively. Studies were classified based on several common clinical applications according to the type of ASL sequence used. Studies using pulsed ASL and pseudo-continuous ASL were grouped based on common sequences. RESULTS The number of clinical studies was 264. Numerous studies applied ASL to stroke management (43 studies), drug testing (21 studies), neurodegenerative diseases (40 studies), and psychiatric disorders (26 studies). CONCLUSIONS This review discusses several factors hindering the implementation of clinical ASL and ASL-related radiofrequency safety issues encountered in clinical practice. However, a limited number of search terms were used. Further development of robust sequences with multislice imaging capabilities and reduced radiofrequency energy deposition will hopefully improve the clinical acceptance of ASL.
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14
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Pre-operative evaluation in pediatric patients with cortical dysplasia. Childs Nerv Syst 2015; 31:2225-33. [PMID: 26280628 DOI: 10.1007/s00381-015-2869-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 08/03/2015] [Indexed: 01/12/2023]
Abstract
INTRODUCTION Focal cortical dysplasia (FCD) is an important cause of refractory seizures and catastrophic epilepsy in infants and children who had epilepsy surgery. AIMS OF THE REVIEW This manuscript will discuss age-related unique clinical characteristics in evaluation of infants and young children because the understanding of these age-related features is critical in selecting children who can benefit from epilepsy surgery. In addition, we will review the non-invasive tools available for the presurgical evaluation of children with FCD and their individual contribution to the formulation of the presurgical hypothesis.
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15
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Morana G, Piccardo A, Puntoni M, Nozza P, Cama A, Raso A, Mascelli S, Massollo M, Milanaccio C, Garrè ML, Rossi A. Diagnostic and prognostic value of 18F-DOPA PET and 1H-MR spectroscopy in pediatric supratentorial infiltrative gliomas: a comparative study. Neuro Oncol 2015; 17:1637-47. [PMID: 26405202 DOI: 10.1093/neuonc/nov099] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Accepted: 05/05/2015] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND (1)H-MR spectroscopy (MRS) and (18)F-dihydroxyphenylalanine (DOPA) PET are noninvasive imaging techniques able to assess metabolic features of brain tumors. The aim of this study was to compare diagnostic and prognostic information gathered by (18)F-DOPA PET and (1)H-MRS in children with supratentorial infiltrative gliomas or nonneoplastic brain lesions suspected to be gliomas. METHODS We retrospectively analyzed 27 pediatric patients with supratentorial infiltrative brain lesions on conventional MRI (21 gliomas and 6 nonneoplastic lesions) who underwent (18)F-DOPA PET and (1)H-MRS within 2 weeks of each other. (1)H-MRS data (choline/N-acetylaspartate, choline-to-creatine ratios, and presence of lactate) and (18)F-DOPA uptake parameters (lesion-to-normal tissue and lesion-to-striatum ratios) were compared and correlated with histology, WHO tumor grade, and patient outcome. RESULTS (1)H-MRS and (18)F-DOPA PET data were positively correlated. Sensitivity, specificity, and accuracy in distinguishing gliomas from nonneoplastic lesions were 95%, 83%, and 93% for (1)H-MRS and 76%, 83%, and 78% for (18)F-DOPA PET, respectively. No statistically significant differences were found between the 2 techniques (P > .05). Significant differences regarding (18)F-DOPA uptake and (1)H-MRS ratios were found between low-grade and high-grade gliomas (P≤.001 and P≤.04, respectively). On multivariate analysis, (18)F-DOPA uptake independently correlated with progression-free survival (P≤.05) and overall survival (P = .04), whereas (1)H-MRS did not show significant association with outcome. CONCLUSIONS (1)H-MRS and (18)F-DOPA PET provide useful complementary information for evaluating the metabolism of pediatric brain lesions. (1)H-MRS represents the method of first choice for differentiating brain gliomas from nonneoplastic lesions.(18)F-DOPA uptake better discriminates low-grade from high-grade gliomas and is an independent predictor of outcome.
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Affiliation(s)
- Giovanni Morana
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
| | - Arnoldo Piccardo
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
| | - Matteo Puntoni
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
| | - Paolo Nozza
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
| | - Armando Cama
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
| | - Alessandro Raso
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
| | - Samantha Mascelli
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
| | - Michela Massollo
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
| | - Claudia Milanaccio
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
| | - Maria Luisa Garrè
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
| | - Andrea Rossi
- Istituto Giannina Gaslini, Genova, Italy (G.M., P.N., A.C., A.R., S.M., C.M., M.L.G., A.R.); Nuclear Medicine Unit, Ospedali Galliera, Genova, Italy (A.P., M.M.); Clinical Trial Unit, Scientific Directorate, Ospedali Galliera, Genova, Italy (M.P.)
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16
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18F-Fluoroethylcholine (18F-Cho) PET/MRI Functional Parameters in Pediatric Astrocytic Brain Tumors. Clin Nucl Med 2015; 40:e40-5. [DOI: 10.1097/rlu.0000000000000556] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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17
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Teixeira SR, Martinez-Rios C, Hu L, Bangert BA. Clinical applications of pediatric positron emission tomography-magnetic resonance imaging. Semin Roentgenol 2014; 49:353-66. [PMID: 25498232 DOI: 10.1053/j.ro.2014.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Sara R Teixeira
- Department of Radiology, University Hospitals Case Medical Center, Cleveland, OH; Division of Radiology, Ribeirao Preto Medical School, University of Sao Paulo, São Paulo, Brazil
| | - Claudia Martinez-Rios
- Department of Radiology, University Hospitals Case Medical Center, Cleveland, OH; Case Western Reserve University, Cleveland, OH
| | | | - Barbara A Bangert
- Department of Radiology, University Hospitals Case Medical Center, Cleveland, OH; Case Western Reserve University, Cleveland, OH.
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Palumbo B, Buresta T, Nuvoli S, Spanu A, Schillaci O, Fravolini ML, Palumbo I. SPECT and PET serve as molecular imaging techniques and in vivo biomarkers for brain metastases. Int J Mol Sci 2014; 15:9878-93. [PMID: 24897023 PMCID: PMC4100127 DOI: 10.3390/ijms15069878] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 05/13/2014] [Accepted: 05/14/2014] [Indexed: 12/28/2022] Open
Abstract
Nuclear medicine techniques (single photon emission computerized tomography, SPECT, and positron emission tomography, PET) represent molecular imaging tools, able to provide in vivo biomarkers of different diseases. To investigate brain tumours and metastases many different radiopharmaceuticals imaged by SPECT and PET can be used. In this review the main and most promising radiopharmaceuticals available to detect brain metastases are reported. Furthermore the diagnostic contribution of the combination of SPECT and PET data with radiological findings (magnetic resonance imaging, MRI) is discussed.
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Affiliation(s)
- Barbara Palumbo
- Section of Nuclear Medicine and Health Physics, Department of Surgical and Biomedical Sciences, University of Perugia, Perugia 06100, Italy.
| | - Tommaso Buresta
- Section of Nuclear Medicine and Health Physics, Department of Surgical and Biomedical Sciences, University of Perugia, Perugia 06100, Italy.
| | - Susanna Nuvoli
- Section of Nuclear Medicine, Department of Clinical and Experimental Medicine, University of Sassari, Sassari 07100, Italy.
| | - Angela Spanu
- Section of Nuclear Medicine, Department of Clinical and Experimental Medicine, University of Sassari, Sassari 07100, Italy.
| | - Orazio Schillaci
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Roma 00133, Italy.
| | | | - Isabella Palumbo
- Section of Radiotherapy Department of Surgical and Biomedical Sciences, University of Perugia, Perugia 06100, Italy.
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