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Seiffert AP, Gómez-Grande A, Villarejo-Galende A, González-Sánchez M, Bueno H, Gómez EJ, Sánchez-González P. High Correlation of Static First-Minute-Frame (FMF) PET Imaging after 18F-Labeled Amyloid Tracer Injection with [ 18F]FDG PET Imaging. SENSORS (BASEL, SWITZERLAND) 2021; 21:5182. [PMID: 34372416 PMCID: PMC8348394 DOI: 10.3390/s21155182] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/26/2021] [Accepted: 07/28/2021] [Indexed: 01/17/2023]
Abstract
Dynamic early-phase PET images acquired with radiotracers binding to fibrillar amyloid-beta (Aβ) have shown to correlate with [18F]fluorodeoxyglucose (FDG) PET images and provide perfusion-like information. Perfusion information of static PET scans acquired during the first minute after radiotracer injection (FMF, first-minute-frame) is compared to [18F]FDG PET images. FMFs of 60 patients acquired with [18F]florbetapir (FBP), [18F]flutemetamol (FMM), and [18F]florbetaben (FBB) are compared to [18F]FDG PET images. Regional standardized uptake value ratios (SUVR) are directly compared and intrapatient Pearson's correlation coefficients are calculated to evaluate the correlation of FMFs to their corresponding [18F]FDG PET images. Additionally, regional interpatient correlations are calculated. The intensity profiles of mean SUVRs among the study cohort (r = 0.98, p < 0.001) and intrapatient analyses show strong correlations between FMFs and [18F]FDG PET images (r = 0.93 ± 0.05). Regional VOI-based analyses also result in high correlation coefficients. The FMF shows similar information to the cerebral metabolic patterns obtained by [18F]FDG PET imaging. Therefore, it could be an alternative to the dynamic imaging of early phase amyloid PET and be used as an additional neurodegeneration biomarker in amyloid PET studies in routine clinical practice while being acquired at the same time as amyloid PET images.
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Affiliation(s)
- Alexander P. Seiffert
- Biomedical Engineering and Telemedicine Centre, ETSI Telecomunicación, Center for Biomedical Technology, Universidad Politécnica de Madrid, 28040 Madrid, Spain;
| | - Adolfo Gómez-Grande
- Department of Nuclear Medicine, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain;
- Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.V.-G.); (H.B.)
| | - Alberto Villarejo-Galende
- Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.V.-G.); (H.B.)
- Department of Neurology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain;
- Group of Neurodegenerative Diseases, Hospital 12 de Octubre Research Institute (imas12), 28041 Madrid, Spain
- Biomedical Research Networking Center in Neurodegenerative Diseases (CIBERNED), 28029 Madrid, Spain
| | - Marta González-Sánchez
- Department of Neurology, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain;
- Group of Neurodegenerative Diseases, Hospital 12 de Octubre Research Institute (imas12), 28041 Madrid, Spain
- Biomedical Research Networking Center in Neurodegenerative Diseases (CIBERNED), 28029 Madrid, Spain
| | - Héctor Bueno
- Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain; (A.V.-G.); (H.B.)
- Department of Cardiology and Instituto de Investigación Sanitaria (imas12), Hospital Universitario 12 de Octubre, 28041 Madrid, Spain
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Enrique J. Gómez
- Biomedical Engineering and Telemedicine Centre, ETSI Telecomunicación, Center for Biomedical Technology, Universidad Politécnica de Madrid, 28040 Madrid, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
| | - Patricia Sánchez-González
- Biomedical Engineering and Telemedicine Centre, ETSI Telecomunicación, Center for Biomedical Technology, Universidad Politécnica de Madrid, 28040 Madrid, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
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2
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Vanhoutte M, Landeau B, Sherif S, de la Sayette V, Dautricourt S, Abbas A, Manrique A, Chocat A, Chételat G. Evaluation of the early-phase [ 18F]AV45 PET as an optimal surrogate of [ 18F]FDG PET in ageing and Alzheimer's clinical syndrome. Neuroimage Clin 2021; 31:102750. [PMID: 34247116 PMCID: PMC8274342 DOI: 10.1016/j.nicl.2021.102750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 12/05/2022]
Abstract
Dual-phase [18F]AV45 positron emission tomography (PET) is highly promising in the assessment of neurodegenerative diseases, allowing to obtain information on both neurodegeneration (early-phase; eAV45) and amyloid deposition (late-phase; lAV45) which are highly complementary; yet eAV45 needs further evaluation. This study aims at validating eAV45 as an optimal proxy of [18F]FDG PET in a large mixed-population of healthy ageing and Alzheimer's clinical syndrome participants (n = 191) who had [18F]FDG PET, eAV45 and lAV45 scans. We found early time frame 0-4 min to give maximal correlation with [18F]FDG PET and minimal correlation with lAV45. Moreover, maximal overlap of [18F]FDG PET versus eAV45 associations with clinical diagnosis and cognition was obtained with pons scaling. Across reference regions, classification performance between clinical subgroups was similar for both eAV45 and [18F]FDG PET. These findings highlight the optimal use of eAV45 to assess neurodegeneration as a validated proxy of [18F]FDG PET. On top of this purpose, this study showed that combined [18F]AV45 PET dual-biomarker even outperformed [18F]FDG PET or lAV45 alone.
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Affiliation(s)
- Matthieu Vanhoutte
- Inserm UMR-S U1237, Caen-Normandie University, GIP Cyceron, Caen, France.
| | - Brigitte Landeau
- Inserm UMR-S U1237, Caen-Normandie University, GIP Cyceron, Caen, France
| | - Siya Sherif
- Inserm UMR-S U1237, Caen-Normandie University, GIP Cyceron, Caen, France
| | - Vincent de la Sayette
- Inserm U1077, Caen-Normandie University, École Pratique des Hautes Études, Caen, France; University Hospital, Neurology Department, Caen, France
| | - Sophie Dautricourt
- Inserm UMR-S U1237, Caen-Normandie University, GIP Cyceron, Caen, France; University Hospital, Neurology Department, Caen, France
| | - Ahmed Abbas
- Inserm U1077, Caen-Normandie University, École Pratique des Hautes Études, Caen, France
| | - Alain Manrique
- University Hospital, Nuclear Medicine Department, Caen, France
| | - Anne Chocat
- Inserm UMR-S U1237, Caen-Normandie University, GIP Cyceron, Caen, France
| | - Gaël Chételat
- Inserm UMR-S U1237, Caen-Normandie University, GIP Cyceron, Caen, France; Inserm U1077, Caen-Normandie University, École Pratique des Hautes Études, Caen, France.
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3
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Multivariate analysis of dual-point amyloid PET intended to assist the diagnosis of Alzheimer’s disease. Neurocomputing 2020. [DOI: 10.1016/j.neucom.2020.06.081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Papanastasiou G, Rodrigues MA, Wang C, Heurling K, Lucatelli C, Salman RAS, Wardlaw JM, van Beek EJR, Thompson G. Pharmacokinetic modelling for the simultaneous assessment of perfusion and 18F-flutemetamol uptake in cerebral amyloid angiopathy using a reduced PET-MR acquisition time: Proof of concept. Neuroimage 2020; 225:117482. [PMID: 33157265 DOI: 10.1016/j.neuroimage.2020.117482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 09/24/2020] [Accepted: 10/19/2020] [Indexed: 01/05/2023] Open
Abstract
PURPOSE Cerebral amyloid angiopathy (CAA) is a cerebral small vessel disease associated with perivascular β-amyloid deposition. CAA is also associated with strokes due to lobar intracerebral haemorrhage (ICH). 18F-flutemetamol amyloid ligand PET may improve the early detection of CAA. We performed pharmacokinetic modelling using both full (0-30, 90-120 min) and reduced (30 min) 18F-flutemetamol PET-MR acquisitions, to investigate regional cerebral perfusion and amyloid deposition in ICH patients. METHODS Dynamic18F-flutemetamol PET-MR was performed in a pilot cohort of sixteen ICH participants; eight lobar ICH cases with probable CAA and eight deep ICH patients. A model-based input function (mIF) method was developed for compartmental modelling. mIF 1-tissue (1-TC) and 2-tissue (2-TC) compartmental modelling, reference tissue models and standardized uptake value ratios were assessed in the setting of probable CAA detection. RESULTS The mIF 1-TC model detected perfusion deficits and 18F-flutemetamol uptake in cases with probable CAA versus deep ICH patients, in both full and reduced PET acquisition time (all P < 0.05). In the reduced PET acquisition, mIF 1-TC modelling reached the highest sensitivity and specificity in detecting perfusion deficits (0.87, 0.77) and 18F-flutemetamol uptake (0.83, 0.71) in cases with probable CAA. Overall, 52 and 48 out of the 64 brain areas with 18F-flutemetamol-determined amyloid deposition showed reduced perfusion for 1-TC and 2-TC models, respectively. CONCLUSION Pharmacokinetic (1-TC) modelling using a 30 min PET-MR time frame detected impaired haemodynamics and increased amyloid load in probable CAA. Perfusion deficits and amyloid burden co-existed within cases with CAA, demonstrating a distinct imaging pattern which may have merit in elucidating the pathophysiological process of CAA.
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Affiliation(s)
- Giorgos Papanastasiou
- Edinburgh Imaging Facility, Queen's Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK.
| | - Mark A Rodrigues
- Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK
| | - Chengjia Wang
- Edinburgh Imaging Facility, Queen's Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | | | - Christophe Lucatelli
- Edinburgh Imaging Facility, Queen's Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | | | - Joanna M Wardlaw
- Edinburgh Imaging Facility, Queen's Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK; Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK
| | - Edwin J R van Beek
- Edinburgh Imaging Facility, Queen's Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Gerard Thompson
- Edinburgh Imaging Facility, Queen's Medical Research Institute, The University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, UK; Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK
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Tiepolt S, Luthardt J, Patt M, Hesse S, Hoffmann KT, Weise D, Gertz HJ, Sabri O, Barthel H. Early after Administration [11C]PiB PET Images Correlate with Cognitive Dysfunction Measured by the CERAD Test Battery. J Alzheimers Dis 2020; 68:65-76. [PMID: 30636731 DOI: 10.3233/jad-180217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND Amyloid-β (Aβ) and [18F]FDG PET are established as amyloid pathology and neuronal injury biomarkers. Early after administration Aβ PET images have the potential to replace [18F]FDG PET images allowing dual biomarker delivery by the administration of a single tracer. For [18F]FDG PET data, a correlation with cognitive performance is known. OBJECTIVE The aim of this study was to investigate whether early after administration [11C]PiB PET data also correlate with cognitive performance. METHODS The early after administration [11C]PiB PET data of 31 patients with cognitive impairment were evaluated. CERAD subtests were summarized to five cognitive domains. The resulting z scores were correlated with the PET data on a voxel- and VOI-based approach. Additional subgroup analyses (MCI versus dementia, Aβ-positive versus Aβ-negative subjects) were performed. RESULTS Significant correlations between cognitive performance and early after administration [11C]PiB PET data were found between left temporo-parietal SUVR and language domain, bilateral occipital as well as left temporal SUVR and executive function, left pre- and postcentral SUVRs, and visuospatial abilities. For the episodic and immediate memory domains, the analysis at the high significance level did not show any correlated cluster, however, the exploratory analysis did. CONCLUSION Our study revealed correlations between deficits in different cognitive domains and regional early after administration [11C]PiB PET data similar to those known from [18F]FDG PET studies. Thus, our data support the assumption that early [11C]PiB PET data have a potential as neuronal injury biomarker. Head-to-head double-tracer studies of larger cohorts are needed to confirm this assumption.
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Affiliation(s)
- Solveig Tiepolt
- Department of Nuclear Medicine, University of Leipzig, University of Leipzig, Leipzig, Germany
| | - Julia Luthardt
- Department of Nuclear Medicine, University of Leipzig, University of Leipzig, Leipzig, Germany
| | - Marianne Patt
- Department of Nuclear Medicine, University of Leipzig, University of Leipzig, Leipzig, Germany
| | - Swen Hesse
- Department of Nuclear Medicine, University of Leipzig, University of Leipzig, Leipzig, Germany
| | | | - David Weise
- Department of Psychiatry, University of Leipzig, Leipzig, Germany.,Department of Neurology, University of Leipzig, Leipzig, Germany
| | | | - Osama Sabri
- Department of Nuclear Medicine, University of Leipzig, University of Leipzig, Leipzig, Germany
| | - Henryk Barthel
- Department of Nuclear Medicine, University of Leipzig, University of Leipzig, Leipzig, Germany
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6
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Discriminative margin-sensitive autoencoder for collective multi-view disease analysis. Neural Netw 2020; 123:94-107. [DOI: 10.1016/j.neunet.2019.11.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 08/18/2019] [Accepted: 11/13/2019] [Indexed: 12/18/2022]
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7
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Bilgel M, Beason-Held L, An Y, Zhou Y, Wong DF, Resnick SM. Longitudinal evaluation of surrogates of regional cerebral blood flow computed from dynamic amyloid PET imaging. J Cereb Blood Flow Metab 2020; 40:288-297. [PMID: 30755135 PMCID: PMC7370613 DOI: 10.1177/0271678x19830537] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/11/2018] [Accepted: 01/07/2019] [Indexed: 11/17/2022]
Abstract
Surrogates of neuronal activity, typically measured by regional cerebral blood flow (rCBF) or glucose metabolism, can be estimated from dynamic amyloid PET imaging. Using data for 149 participants (345 visits) from the Baltimore Longitudinal Study of Aging, we assessed whether the average of early amyloid frames (EA) and R1 computed from dynamic 11C-Pittsburgh compound B (PiB) PET can serve as surrogates of rCBF computed from 15O-H2O-PET. R1 had the highest longitudinal test-retest reliability. Interquartile range (IQR) of cross-sectional Pearson correlations with rCBF was 0.60-0.72 for EA and 0.63-0.72 for R1. Correlations between rates of change were lower (IQR 0.22-0.50 for EA, 0.25-0.55 for R1). Values in the Alzheimer's metabolic signature meta-ROI were negatively associated with age and exhibited longitudinal declines for each PET measure. In age-adjusted analyses, meta-ROI rCBF and R1 were lower among amyloid+ individuals; EA and R1 were lower among males. Regional PiB-based measures, in particular R1, can be suitable surrogates of rCBF. Dynamic PiB-PET may obviate the need for a separate scan to measure neuronal activity, thereby reducing patient burden, radioactivity exposure, and cost.
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Affiliation(s)
- Murat Bilgel
- Laboratory of Behavioral Neuroscience,
National Institute on Aging (NIA), Baltimore, USA
| | - Lori Beason-Held
- Laboratory of Behavioral Neuroscience,
National Institute on Aging (NIA), Baltimore, USA
| | - Yang An
- Laboratory of Behavioral Neuroscience,
National Institute on Aging (NIA), Baltimore, USA
| | - Yun Zhou
- Department of Radiology and Radiological
Science, Johns Hopkins University School (JHU) of Medicine, Baltimore, USA
- Mallinckrodt Institute of Radiology,
Washington University in St. Louis School of Medicine, St. Louis, USA
| | - Dean F Wong
- Department of Radiology and Radiological
Science, Johns Hopkins University School (JHU) of Medicine, Baltimore, USA
- Department of Psychiatry and Behavioral
Sciences, JHU School of Medicine, Baltimore, USA
- Department of Neuroscience, JHU School
of Medicine, Baltimore, USA
- Department of Neurology, JHU School of
Medicine, Baltimore, USA
| | - Susan M Resnick
- Laboratory of Behavioral Neuroscience,
National Institute on Aging (NIA), Baltimore, USA
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8
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Segovia F, Gómez-Río M, Sánchez-Vañó R, Górriz JM, Ramírez J, Triviño-Ibáñez E, Carnero-Pardo C, Martínez-Lozano MD, Sopena-Novales P. Usefulness of Dual-Point Amyloid PET Scans in Appropriate Use Criteria: A Multicenter Study. J Alzheimers Dis 2019; 65:765-779. [PMID: 30103321 DOI: 10.3233/jad-180232] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Biomarkers of neurodegeneration play a major role in the diagnosis of Alzheimer's disease (AD). Information on both amyloid-β accumulation, e.g., from amyloid positron emission tomography (PET), and downstream neuronal injury, e.g., from 18F-fluorodeoxyglucose (FDG) PET, would ideally be obtained in a single procedure. OBJECTIVE On the basis that the parallelism between brain perfusion and glucose metabolism is well documented, the objective of this work is to evaluate whether brain perfusion estimated in a dual-point protocol of 18F-florbetaben (FBB) PET can be a surrogate of FDG PET in appropriate use criteria (AUC) for amyloid PET. METHODS This study included 47 patients fulfilling international AUC for amyloid PET. FDG PET, early FBB (pFBB) PET (0-10 min post injection), and standard FBB (sFBB) PET (90-110 min post injection) scans were acquired. Results of clinical subjective reports and of quantitative region of interest (ROI)-based analyses were compared between procedures using statistical techniques such as Pearson's correlation coefficients and t-tests. RESULTS pFBB and FDG visual reports on the 47 patients showed good agreement (k > 0.74); ROI quantitative analysis indicated that both data modalities are highly correlated; and the t-test analysis does not reject the null hypothesis that data from pFBB and FDG examinations comes from independent random samples from normal distributions with equal means and variances. CONCLUSIONS A good agreement was found between pFBB and FDG data as obtained by subjective visual and quantitative analyses. Dual-point FBB PET scans could offer complementary information (similar to that from FDG PET and FBB PET) in a single procedure, considering pFBB as a surrogate of FDG.
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Affiliation(s)
- Fermín Segovia
- Department of Signal Theory, Networking and Communications, University of Granada, Granada, Spain.,DASCI Institute, University of Granada, Granada, Spain
| | - Manuel Gómez-Río
- Department of Nuclear Medicine, "Virgen de las Nieves" University Hospital, Granada, Spain.,Biosanitary Investigation Institute of Granada, Granada, Spain
| | - Raquel Sánchez-Vañó
- Department of Nuclear Medicine, "9 de Octubre" Hospital, Valencia, Spain.,Clinical Medicine and Public Health Doctoral Program of the University of Granada, Granada, Spain
| | - Juan Manuel Górriz
- Department of Signal Theory, Networking and Communications, University of Granada, Granada, Spain.,DASCI Institute, University of Granada, Granada, Spain.,Biosanitary Investigation Institute of Granada, Granada, Spain
| | - Javier Ramírez
- Department of Signal Theory, Networking and Communications, University of Granada, Granada, Spain.,DASCI Institute, University of Granada, Granada, Spain.,Biosanitary Investigation Institute of Granada, Granada, Spain
| | - Eva Triviño-Ibáñez
- Department of Nuclear Medicine, "Virgen de las Nieves" University Hospital, Granada, Spain.,Biosanitary Investigation Institute of Granada, Granada, Spain
| | - Cristóbal Carnero-Pardo
- Biosanitary Investigation Institute of Granada, Granada, Spain.,Department of Neurology, "Virgen de las Nieves" University Hospital, Granada, Spain
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18F-FDG PET, the early phases and the delivery rate of 18F-AV45 PET as proxies of cerebral blood flow in Alzheimer's disease: Validation against 15O-H 2O PET. Alzheimers Dement 2019; 15:1172-1182. [PMID: 31405824 DOI: 10.1016/j.jalz.2019.05.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 04/27/2019] [Accepted: 05/21/2019] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Dual-biomarker positron emission tomography (PET), providing complementary information on cerebral blood flow and amyloid-β deposition, is of clinical interest for Alzheimer's disease (AD). The purpose of this study was to validate the perfusion components of early-phase 18F-florbetapir (eAV45), the 18F-AV45 delivery rate (R1), and 18F-FDG against 15O-H2O PET and assess how they change with disease severity. METHODS This study included ten controls, 19 amnestic mild cognitive impairment, and 10 AD dementia subjects. Within-subject regional correlations between modalities, between-group regional and voxel-wise analyses of covariance per modality, and receiver operating characteristic analyses for discrimination between groups were performed. RESULTS FDG standardized uptake value ratio, eAV45 (0-2 min) standardized uptake value ratio, and AV45-R1 were significantly associated with H2O PET (regional Pearson r = 0.54-0.82, 0.70-0.94, and 0.65-0.92, respectively; P < .001). All modalities confirmed reduced cerebral blood flow in the posterior cingulate of patients with amnestic mild cognitive impairment and AD dementia, which was associated with lower cognition (r = 0.36-0.65, P < .025) and could discriminate between patient and control groups (area under the curve > 0.80). However, eAV45 was less sensitive to reflect the disease severity than AV45-R1 or FDG. DISCUSSION R1 is preferable over eAV45 for accurate representation of brain perfusion in dual-biomarker PET for AD.
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10
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Bunai T, Kakimoto A, Yoshikawa E, Terada T, Ouchi Y. Biopathological Significance of Early-Phase Amyloid Imaging in the Spectrum of Alzheimer’s Disease. J Alzheimers Dis 2019; 69:529-538. [DOI: 10.3233/jad-181188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Tomoyasu Bunai
- Department of Biofunctional Imaging, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, Higashi-ku, Hamamatsu, Japan
| | - Akihiro Kakimoto
- PET Medical Application Group, Central Research Laboratory, Hamamatsu Photonics K.K., Hamakita-ku, Hamamatsu, Japan
| | - Etsuji Yoshikawa
- PET Medical Application Group, Central Research Laboratory, Hamamatsu Photonics K.K., Hamakita-ku, Hamamatsu, Japan
| | - Tatsuhiro Terada
- Department of Biofunctional Imaging, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, Higashi-ku, Hamamatsu, Japan
- Department of Neurology, Shizuoka Institute of Epilepsy and Neurological Disorders, Aoi-ku, Shizuoka, Japan
| | - Yasuomi Ouchi
- Department of Biofunctional Imaging, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, Higashi-ku, Hamamatsu, Japan
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11
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Asghar M, Hinz R, Herholz K, Carter SF. Dual-phase [18F]florbetapir in frontotemporal dementia. Eur J Nucl Med Mol Imaging 2019; 46:304-311. [PMID: 30569187 PMCID: PMC6333719 DOI: 10.1007/s00259-018-4238-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 12/05/2018] [Indexed: 12/14/2022]
Abstract
PURPOSE The PET tracer [18F]florbetapir is a specific fibrillar amyloid-beta (Aβ) biomarker. During the late scan phase (> 40 min), it provides pathological information about Aβ status. Early scan phase (0-10 min) can provide FDG-'like' information. The current investigation tested the feasibility of using florbetapir as a dual-phase biomarker in behavioural variant frontotemporal dementia (bvFTD). METHODS Eight bvFTD patients underwent [18F]florbetapir and [18]FDG-PET scans. Additionally, ten healthy controls and ten AD patients underwent florbetapir-PET only. PET data were acquired dynamically for 60-min post-injection. The bvFTD PET data were used to define an optimal time window, representing blood flow-related pseudo-metabolism ('pseudo-FDG'), of florbetapir data that maximally correlated with the corresponding real FDG SUVR (40-60 min) in a composite neocortical FTD region. RESULTS A 2 to 5-min time window post-injection of the florbetapir-PET data provided the largest correlation (Pearson's r = 0.79, p = 0.02) to the FDG data. The pseudo-FDG images demonstrated strong internal consistency with actual FDG data and were also visually consistent with the bvFTD patients' hypometabolic profiles. The ability to identify bvFTD from blind visual rating of pseudo-FDG images was consistent with previous reports using FDG data (sensitivity = 75%, specificity = 85%). CONCLUSIONS This investigation demonstrates that early phase florbetapir uptake shows a reduction of frontal lobe perfusion in bvFTD, similar to metabolic findings with FDG. Thus, dynamic florbetapir scans can serve as a dual-phase biomarker in dementia patients to distinguish FTD from AD and cognitively normal elderly, removing the need for a separate FDG-PET scan in challenging dementia cases.
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Affiliation(s)
- Michael Asghar
- Wolfson Molecular Imaging Centre, Faculty of Medicine, Biology and Health, University of Manchester, 27 Palatine Road, Manchester, M20 3LJ, UK
- Sir Peter Mansfield Imaging Centre, School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Rainer Hinz
- Wolfson Molecular Imaging Centre, Faculty of Medicine, Biology and Health, University of Manchester, 27 Palatine Road, Manchester, M20 3LJ, UK
| | - Karl Herholz
- Wolfson Molecular Imaging Centre, Faculty of Medicine, Biology and Health, University of Manchester, 27 Palatine Road, Manchester, M20 3LJ, UK
| | - Stephen F Carter
- Wolfson Molecular Imaging Centre, Faculty of Medicine, Biology and Health, University of Manchester, 27 Palatine Road, Manchester, M20 3LJ, UK.
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12
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Ni J, Han F, Yuan J, Wang H, Shen DC, Xu Y, Cui LY. The Discrepancy of Neurological Diseases between China and Western Countries in Recent Two Decades. Chin Med J (Engl) 2018; 131:886-891. [PMID: 29664046 PMCID: PMC5912051 DOI: 10.4103/0366-6999.229905] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Jun Ni
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Fei Han
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Jing Yuan
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Han Wang
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Dong-Chao Shen
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Yan Xu
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Li-Ying Cui
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College; Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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13
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Florek L, Tiepolt S, Schroeter ML, Berrouschot J, Saur D, Hesse S, Jochimsen T, Luthardt J, Sattler B, Patt M, Hoffmann KT, Villringer A, Classen J, Gertz HJ, Sabri O, Barthel H. Dual Time-Point [18F]Florbetaben PET Delivers Dual Biomarker Information in Mild Cognitive Impairment and Alzheimer’s Disease. J Alzheimers Dis 2018; 66:1105-1116. [DOI: 10.3233/jad-180522] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Lisa Florek
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
| | - Solveig Tiepolt
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
| | - Matthias L. Schroeter
- Day Clinic for Cognitive Neurology, Leipzig University Hospital & Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | | | - Dorothee Saur
- Department of Neurology, Leipzig University Hospital, Leipzig, Germany
| | - Swen Hesse
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
- IFB Adiposity Diseases, Leipzig University Hospital, Leipzig, Germany
| | - Thies Jochimsen
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
| | - Julia Luthardt
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
| | - Bernhard Sattler
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
| | - Marianne Patt
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
| | | | - Arno Villringer
- IFB Adiposity Diseases, Leipzig University Hospital, Leipzig, Germany
- Day Clinic for Cognitive Neurology, Leipzig University Hospital & Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany
| | - Joseph Classen
- Department of Neurology, Leipzig University Hospital, Leipzig, Germany
| | | | - Osama Sabri
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
| | - Henryk Barthel
- Department of Nuclear Medicine, Leipzig University Hospital, Leipzig, Germany
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14
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Zhu X, Zhang W, Fan Y. A Robust Reduced Rank Graph Regression Method for Neuroimaging Genetic Analysis. Neuroinformatics 2018; 16:351-361. [PMID: 29907892 PMCID: PMC6092232 DOI: 10.1007/s12021-018-9382-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
To characterize associations between genetic and neuroimaging data, a variety of analytic methods have been proposed in neuroimaging genetic studies. These methods have achieved promising performance by taking into account inherent correlation in either the neuroimaging data or the genetic data alone. In this study, we propose a novel robust reduced rank graph regression based method in a linear regression framework by considering correlations inherent in neuroimaging data and genetic data jointly. Particularly, we model the association analysis problem in a reduced rank regression framework with the genetic data as a feature matrix and the neuroimaging data as a response matrix by jointly considering correlations among the neuroimaging data as well as correlations between the genetic data and the neuroimaging data. A new graph representation of genetic data is adopted to exploit their inherent correlations, in addition to robust loss functions for both the regression and the data representation tasks, and a square-root-operator applied to the robust loss functions for achieving adaptive sample weighting. The resulting optimization problem is solved using an iterative optimization method whose convergence has been theoretically proved. Experimental results on the Alzheimer's Disease Neuroimaging Initiative (ADNI) dataset have demonstrated that our method could achieve competitive performance in terms of regression performance between brain structural measures and the Single Nucleotide Polymorphisms (SNPs), compared with state-of-the-art alternative methods.
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Affiliation(s)
- Xiaofeng Zhu
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Weihong Zhang
- Peking Union Medical College Hospital, Beijing, 100730, China
| | - Yong Fan
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
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15
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Joseph-Mathurin N, Su Y, Blazey TM, Jasielec M, Vlassenko A, Friedrichsen K, Gordon BA, Hornbeck RC, Cash L, Ances BM, Veale T, Cash DM, Brickman AM, Buckles V, Cairns NJ, Cruchaga C, Goate A, Jack CR, Karch C, Klunk W, Koeppe RA, Marcus DS, Mayeux R, McDade E, Noble JM, Ringman J, Saykin AJ, Thompson PM, Xiong C, Morris JC, Bateman RJ, Benzinger TLS. Utility of perfusion PET measures to assess neuronal injury in Alzheimer's disease. ALZHEIMER'S & DEMENTIA: DIAGNOSIS, ASSESSMENT & DISEASE MONITORING 2018; 10:669-677. [PMID: 30417072 PMCID: PMC6215983 DOI: 10.1016/j.dadm.2018.08.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Introduction 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) is commonly used to estimate neuronal injury in Alzheimer's disease (AD). Here, we evaluate the utility of dynamic PET measures of perfusion using 11C-Pittsburgh compound B (PiB) to estimate neuronal injury in comparison to FDG PET. Methods FDG, early frames of PiB images, and relative PiB delivery rate constants (PiB-R1) were obtained from 110 participants from the Dominantly Inherited Alzheimer Network. Voxelwise, regional cross-sectional, and longitudinal analyses were done to evaluate the correlation between images and estimate the relationship of the imaging biomarkers with estimated time to disease progression based on family history. Results Metabolism and perfusion images were spatially correlated. Regional PiB-R1 values and FDG, but not early frames of PiB images, significantly decreased in the mutation carriers with estimated year to onset and with increasing dementia severity. Discussion Hypometabolism estimated by PiB-R1 may provide a measure of brain perfusion without increasing radiation exposure.
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Affiliation(s)
- Nelly Joseph-Mathurin
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Yi Su
- Banner Alzheimer's Institute, Phoenix, AZ, USA
| | - Tyler M Blazey
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Mateusz Jasielec
- Division of Biostatistics, Washington University School of Medicine, Saint Louis, MO, USA
| | - Andrei Vlassenko
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Karl Friedrichsen
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Brian A Gordon
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Russ C Hornbeck
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Lisa Cash
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Beau M Ances
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Thomas Veale
- Dementia Research Centre, UCL Institute of Neurology, London, UK
| | - David M Cash
- Dementia Research Centre, UCL Institute of Neurology, London, UK
| | - Adam M Brickman
- Department of Neurology, Columbia University Medical Center, New York, NY, USA
| | - Virginia Buckles
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Nigel J Cairns
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Carlos Cruchaga
- Department of Psychiatry, Washington University School of Medicine, Saint Louis, MO, USA
| | - Alison Goate
- Neuroscience Department Laboratories, Mount Sinai School of Medicine, New York, NY, USA
| | | | - Celeste Karch
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - William Klunk
- Departments of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Robert A Koeppe
- Department of Radiology, University of Michigan, Ann Arbor, MI, USA
| | - Daniel S Marcus
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Richard Mayeux
- Department of Neurology, Columbia University Medical Center, New York, NY, USA
| | - Eric McDade
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - James M Noble
- Department of Neurology, Columbia University Medical Center, New York, NY, USA
| | - John Ringman
- Memory and Aging Center, Department of Neurology, Keck School of Medicine at the University of Southern California, Los Angeles, CA, USA
| | - Andrew J Saykin
- Center for Neuroimaging, Department of Radiology and Imaging Science, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Paul M Thompson
- Laboratory of Neuroimaging, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Chengjie Xiong
- Division of Biostatistics, Washington University School of Medicine, Saint Louis, MO, USA
| | - John C Morris
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Randall J Bateman
- Department of Neurology, Washington University School of Medicine, Saint Louis, MO, USA
| | - Tammie L S Benzinger
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA
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16
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Li J, Wu L, Tang Y, Zhou A, Wang F, Xing Y, Jia J. Differentiation of neuropsychological features between posterior cortical atrophy and early onset Alzheimer's disease. BMC Neurol 2018; 18:65. [PMID: 29747584 PMCID: PMC5944104 DOI: 10.1186/s12883-018-1068-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 05/02/2018] [Indexed: 12/30/2022] Open
Abstract
Background Posterior cortical atrophy (PCA) is a group of clinical syndromes characterized by visuospatial and visuoperceptual impairment, with memory relatively preserved. Although PCA is pathologically almost identical to Alzheimer’s disease (AD), they have different cognitive features. Those differences have only rarely been reported in any Chinese population. The purpose of the study is to establish neuropsychological tests that distinguish the clinical features of PCA from early onset AD (EOAD). Methods Twenty-one PCA patients, 20 EOAD patients, and 20 healthy controls participated in this study. Patients had disease duration of ≤4 years. All participants completed a series of neuropsychological tests to evaluate their visuospatial, visuoperceptual, visuo-constructive, language, executive function, memory, calculation, writing, and reading abilities. The cognitive features of PCA and EOAD were compared. Results All the neuropsychological test scores showed that both the PCA and EOAD patients were significantly more impaired than people in the control group. However, PCA patients were significantly more impaired than EOAD patients in visuospatial, visuoperceptual, and visuo-constructive function, as well as in handwriting, and reading Chinese characters. Conclusions The profile of neuropsychological test results highlights cognitive features that differ between PCA and EOAD. One surprising result is that the two syndromes could be distinguished by patients’ ability to read and write Chinese characters. Tests based on these characteristics could therefore form a brief PCA neuropsychological examination that would improve the diagnosis of PCA.
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Affiliation(s)
- Jieying Li
- Innovation Center for Neurological Disorders, Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, People's Republic of China.,The Second People's Hospital of Guiyang, Guizhou, People's Republic of China
| | - Liyong Wu
- Innovation Center for Neurological Disorders, Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yi Tang
- Innovation Center for Neurological Disorders, Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Aihong Zhou
- Innovation Center for Neurological Disorders, Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Fen Wang
- Innovation Center for Neurological Disorders, Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yi Xing
- Innovation Center for Neurological Disorders, Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jianping Jia
- Innovation Center for Neurological Disorders, Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, People's Republic of China. .,Beijing Key Laboratory of Geriatric Cognitive Disorders, Beijing, People's Republic of China. .,Clinical Center for Neurodegenerative Disease and Memory Impairment, Capital Medical University, Beijing, People's Republic of China. .,Center of Alzheimer's Disease, Beijing Institute for Brain Disorders, Beijing, People's Republic of China. .,Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, People's Republic of China. .,National Clinical Research Center for Geriatric Disorders, Beijing, People's Republic of China.
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17
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Brain Network Alterations in Alzheimer's Disease Identified by Early-Phase PIB-PET. CONTRAST MEDIA & MOLECULAR IMAGING 2018. [PMID: 29531506 PMCID: PMC5817202 DOI: 10.1155/2018/6830105] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The aim of this study was to identify the brain networks from early-phase 11C-PIB (perfusion PIB, pPIB) data and to compare the brain networks of patients with differentiating Alzheimer's disease (AD) with cognitively normal subjects (CN) and of mild cognitively impaired patients (MCI) with CN. Forty participants (14 CN, 12 MCI, and 14 AD) underwent 11C-PIB and 18F-FDG PET/CT scans. Parallel independent component analysis (pICA) was used to identify correlated brain networks from the 11C-pPIB and 18F-FDG data, and a two-sample t-test was used to evaluate group differences in the corrected brain networks between AD and CN, and between MCI and CN. Our study identified a brain network of perfusion (early-phase 11C-PIB) that highly correlated with a glucose metabolism (18F-FDG) brain network and colocalized with the default mode network (DMN) in an AD-specific neurodegenerative cohort. Particularly, decreased 18F-FDG uptake correlated with a decreased regional cerebral blood flow in the frontal, parietal, and temporal regions of the DMN. The group comparisons revealed similar spatial patterns of the brain networks derived from the 11C-pPIB and 18F-FDG data. Our findings indicate that 11C-pPIB derived from the early-phase 11C-PIB could provide complementary information for 18F-FDG examination in AD.
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18
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Oliveira FP, Moreira AP, de Mendonça A, Verdelho A, Xavier C, Barroca D, Rio J, Cardoso E, Cruz Â, Abrunhosa A, Castelo-Branco M. Can 11C-PiB-PET Relative Delivery R1 or 11C-PiB-PET Perfusion Replace 18F-FDG-PET in the Assessment of Brain Neurodegeneration? J Alzheimers Dis 2018; 65:89-97. [PMID: 30056421 PMCID: PMC6087437 DOI: 10.3233/jad-180274] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2018] [Indexed: 11/15/2022]
Abstract
BACKGROUND Pittsburgh Compound B (PiB) positron emission tomography (PET) is used to visualize in vivo amyloid plaques in the brain. Frequently the PiB examinations are complemented with a fluorodeoxyglucose (FDG) PET scan to further assess neurodegeneration. OBJECTIVE Our goal is to identify alternative correlates of FDG images by assessing which kinetic methods originate PiB derived relative delivery ratio (R1) images that can be correlated with the FDG images, and to compare them with PiB perfusion (pPiB) images obtained from the early-phase of PiB acquisition. METHODS We selected 52 patients with cognitive impairment who underwent a dynamic PiB and FDG acquisitions. To compute the R1 images, two simplified reference tissue models (SRTM and SRTM2) and two multi-linear reference tissue models (MRTM and MRTM2) were used. The pPiB images were obtained in two different time intervals. RESULTS All six types of images were of good quality and highly correlated with the FDG images (mean voxelwise within-subjects r > 0.92). The higher correlation was found for FDG-R1(MRTM). Regarding the voxelwise regional correlation, the higher mean all brain correlations was r = 0.825 for FDG-R1(MRTM) and statistically significant in the whole brain analysis. CONCLUSION All R1 and pPiB images here tested have potential to assess the metabolic impact of neurodegeneration almost as reliably as the FDG images. However, this is not enough to validate these images for a single-subject analysis compared with the FDG image, and thus they cannot yet be used clinically to replace the FDG image before such evaluation.
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Affiliation(s)
- Francisco P.M. Oliveira
- CIBIT, Institute for Nuclear Sciences Applied to Health (ICNAS - P), University of Coimbra, Coimbra, Portugal
- Institute for Biomedical Imaging and Life Sciences (IBILI), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Ana Paula Moreira
- Nuclear Medicine Department, Coimbra Hospital and University Centre, Coimbra, Portugal
| | - Alexandre de Mendonça
- Department of Neurology and Laboratory of Neurosciences, Faculty of Medicine, University of Lisbon, Lisbon, Portugal
| | - Ana Verdelho
- Department of Neurosciences and Mental Health, Santa Maria Hospital – CHLN, ISAMB, University of Lisbon, Lisbon, Portugal
| | - Carolina Xavier
- CIBIT, Institute for Nuclear Sciences Applied to Health (ICNAS - P), University of Coimbra, Coimbra, Portugal
| | - Dalila Barroca
- CIBIT, Institute for Nuclear Sciences Applied to Health (ICNAS - P), University of Coimbra, Coimbra, Portugal
| | - Joana Rio
- CIBIT, Institute for Nuclear Sciences Applied to Health (ICNAS - P), University of Coimbra, Coimbra, Portugal
| | - Eva Cardoso
- CIBIT, Institute for Nuclear Sciences Applied to Health (ICNAS - P), University of Coimbra, Coimbra, Portugal
| | - Ângela Cruz
- CIBIT, Institute for Nuclear Sciences Applied to Health (ICNAS - P), University of Coimbra, Coimbra, Portugal
| | - Antero Abrunhosa
- CIBIT, Institute for Nuclear Sciences Applied to Health (ICNAS - P), University of Coimbra, Coimbra, Portugal
| | - Miguel Castelo-Branco
- CIBIT, Institute for Nuclear Sciences Applied to Health (ICNAS - P), University of Coimbra, Coimbra, Portugal
- Institute for Biomedical Imaging and Life Sciences (IBILI), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
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Predictive medicine: towards a multi-parametric imaging for a personal risk stratification. Eur J Nucl Med Mol Imaging 2017; 44:196-198. [PMID: 27678266 DOI: 10.1007/s00259-016-3522-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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20
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Rodriguez-Vieitez E, Leuzy A, Chiotis K, Saint-Aubert L, Wall A, Nordberg A. Comparability of [ 18F]THK5317 and [ 11C]PIB blood flow proxy images with [ 18F]FDG positron emission tomography in Alzheimer's disease. J Cereb Blood Flow Metab 2017; 37:740-749. [PMID: 27107028 PMCID: PMC5381463 DOI: 10.1177/0271678x16645593] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
For amyloid positron emission tomography tracers, the simplified reference tissue model derived ratio of influx rate in target relative to reference region (R1) has been shown to serve as a marker of brain perfusion, and, due to the strong coupling between perfusion and metabolism, as a proxy for glucose metabolism. In the present study, 11 prodromal Alzheimer's disease and nine Alzheimer's disease dementia patients underwent [18F]THK5317, carbon-11 Pittsburgh Compound-B ([11C]PIB), and 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG) positron emission tomography to assess the possible use of early-phase [18F]THK5317 and R1 as proxies for brain perfusion, and thus, for glucose metabolism. Discriminative performance (prodromal vs Alzheimer's disease dementia) of [18F]THK5317 (early-phase SUVr and R1) was compared with that of [11C]PIB (early-phase SUVr and R1) and [18F]FDG. Strong positive correlations were found between [18F]THK5317 (early-phase, R1) and [18F]FDG, particularly in frontal and temporoparietal regions. Differences in correlations between early-phase and R1 ([18F]THK5317 and [11C]PIB) and [18F]FDG, were not statistically significant, nor were differences in area under the curve values in the discriminative analysis. Our findings suggest that early-phase [18F]THK5317 and R1 provide information on brain perfusion, closely related to glucose metabolism. As such, a single positron emission tomography study with [18F]THK5317 may provide information about both tau pathology and brain perfusion in Alzheimer's disease, with potential clinical applications.
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Affiliation(s)
| | - Antoine Leuzy
- 1 Department NVS, Karolinska Institutet, Stockholm, Sweden
| | | | | | - Anders Wall
- 2 Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Agneta Nordberg
- 1 Department NVS, Karolinska Institutet, Stockholm, Sweden.,3 Department of Geriatric Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden
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21
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Rodriguez-Vieitez E, Carter SF, Chiotis K, Saint-Aubert L, Leuzy A, Schöll M, Almkvist O, Wall A, Långström B, Nordberg A. Comparison of Early-Phase 11C-Deuterium-l-Deprenyl and 11C-Pittsburgh Compound B PET for Assessing Brain Perfusion in Alzheimer Disease. J Nucl Med 2016; 57:1071-7. [PMID: 26912447 DOI: 10.2967/jnumed.115.168732] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 01/29/2016] [Indexed: 01/07/2023] Open
Abstract
UNLABELLED The PET tracer (11)C-deuterium-L-deprenyl ((11)C-DED) has been used to visualize activated astrocytes in vivo in patients with Alzheimer disease (AD). In this multitracer PET study, early-phase (11)C-DED and (11)C-Pittsburgh compound B ((11)C-PiB) (eDED and ePiB, respectively) were compared as surrogate markers of brain perfusion, and the extent to which (11)C-DED binding is influenced by brain perfusion was investigated. METHODS (11)C-DED, (11)C-PiB, and (18)F-FDG dynamic PET scans were obtained in age-matched groups comprising AD patients (n = 8), patients with mild cognitive impairment (n = 17), and healthy controls (n = 16). A modified reference Patlak model was used to quantify (11)C-DED binding. A simplified reference tissue model was applied to both (11)C-DED and (11)C-PiB to measure brain perfusion relative to the cerebellar gray matter (R1) and binding potentials. (11)C-PiB retention and (18)F-FDG uptake were also quantified as target-to-pons SUV ratios in 12 regions of interest (ROIs). RESULTS The strongest within-subject correlations with the corresponding R1 values (R1,DED and R1,PiB, respectively) and with (18)F-FDG uptake were obtained when the eDED and ePiB PET data were measured 1-4 min after injection. The optimum eDED/ePiB intervals also showed strong, significant ROI-based intersubject Pearson correlations with R1,DED/R1,PiB and with (18)F-FDG uptake, whereas (11)C-DED binding was largely independent of brain perfusion, as measured by eDED. Corresponding voxelwise correlations confirmed the ROI-based results. Temporoparietal eDED or ePiB brain perfusion measurements were highly discriminative between patient and control groups, with discriminative ability statistically comparable to that of temporoparietal (18)F-FDG glucose metabolism. Hypometabolism extended over wider regions than hypoperfusion in patient groups compared with controls. CONCLUSION The 1- to 4-min early-frame intervals of (11)C-DED or (11)C-PiB are suitable surrogate measures for brain perfusion. (11)C-DED binding is independent of brain perfusion, and thus (11)C-DED PET can provide information on both functional (brain perfusion) and pathologic (astrocytosis) aspects from a single PET scan. In comparison with glucose metabolism, early-phase (11)C-DED and (11)C-PiB perfusion appear to provide complementary rather than redundant information.
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Affiliation(s)
- Elena Rodriguez-Vieitez
- Division of Translational Alzheimer Neurobiology, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Stephen F Carter
- Division of Translational Alzheimer Neurobiology, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden Wolfson Molecular Imaging Centre, Institute of Brain, Behaviour and Mental Health, University of Manchester, Manchester, United Kingdom
| | - Konstantinos Chiotis
- Division of Translational Alzheimer Neurobiology, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Laure Saint-Aubert
- Division of Translational Alzheimer Neurobiology, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Antoine Leuzy
- Division of Translational Alzheimer Neurobiology, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Michael Schöll
- Division of Translational Alzheimer Neurobiology, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Ove Almkvist
- Division of Translational Alzheimer Neurobiology, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden Department of Psychology, Stockholm University, Stockholm, Sweden Department of Geriatric Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Anders Wall
- Department of Surgical Sciences, Section of Nuclear Medicine & PET, Uppsala University, Uppsala, Sweden; and
| | | | - Agneta Nordberg
- Division of Translational Alzheimer Neurobiology, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden Department of Geriatric Medicine, Karolinska University Hospital Huddinge, Stockholm, Sweden
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22
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Liu L, Fu L, Zhang X, Zhang J, Zhang X, Xu B, Tian J, Fan Y. Combination of dynamic (11)C-PIB PET and structural MRI improves diagnosis of Alzheimer's disease. Psychiatry Res 2015; 233:131-40. [PMID: 26095348 DOI: 10.1016/j.pscychresns.2015.05.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 02/12/2015] [Accepted: 05/23/2015] [Indexed: 12/11/2022]
Abstract
Structural magnetic resonance imaging (sMRI) is an established technique for measuring brain atrophy, and dynamic positron emission tomography with (11)C-Pittsburgh compound B ((11)C-PIB PET) has the potential to provide both perfusion and amyloid deposition information. It remains unclear, however, how to better combine perfusion, amyloid deposition and morphological information extracted from dynamic (11)C-PIB PET and sMRI with the goal of improving the diagnosis of Alzheimer's disease (AD) and mild cognitive impairment (MCI). We adopted a linear sparse support vector machine to build classifiers for distinguishing AD and MCI subjects from cognitively normal (CN) subjects based on different combinations of regional measures extracted from imaging data, including perfusion and amyloid deposition information extracted from early and late frames of (11)C-PIB separately, and gray matter volumetric information extracted from sMRI data. The experimental results demonstrated that the classifier built upon the combination of imaging measures extracted from early and late frames of (11)C-PIB as well as sMRI achieved the highest classification accuracy in both classification studies of AD (100%) and MCI (85%), indicating that multimodality information could aid in the diagnosis of AD and MCI.
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Affiliation(s)
- Linwen Liu
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Liping Fu
- Department of Nuclear Medicine, the Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Xi Zhang
- Department of Geriatric Neurology, the Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Jinming Zhang
- Department of Nuclear Medicine, the Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Xiaojun Zhang
- Department of Nuclear Medicine, the Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Baixuan Xu
- Department of Nuclear Medicine, the Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Jiahe Tian
- Department of Nuclear Medicine, the Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Yong Fan
- Brainnetome Center, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China; National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China.
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Regional cerebral blood flow estimated by early PiB uptake is reduced in mild cognitive impairment and associated with age in an amyloid-dependent manner. Neurobiol Aging 2015; 36:1619-1628. [PMID: 25702957 DOI: 10.1016/j.neurobiolaging.2014.12.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Revised: 12/22/2014] [Accepted: 12/26/2014] [Indexed: 12/16/2022]
Abstract
Early uptake of [(11)C]-Pittsburgh Compound B (ePiB, 0-6 minutes) estimates cerebral blood flow. We studied ePiB in 13 PiB-negative and 10 PiB-positive subjects with mild cognitive impairment (MCI, n = 23) and 11 PiB-positive and 74 PiB-negative cognitively healthy elderly control subjects (HCS, n = 85) in 6 bilateral volumes of interest: posterior cingulate cortex (PCC), hippocampus (hipp), temporoparietal region, superior parietal gyrus, parahippocampal gyrus (parahipp), and inferior frontal gyrus (IFG) for the associations with cognitive status, age, amyloid deposition, and apolipoprotein E ε4-allele. We observed no difference in ePiB between PiB-positive and -negative subjects and carriers and noncarriers. EPiB decreased with age in PiB-positive subjects in bilateral superior parietal gyrus, bilateral temporoparietal region, right IFG, right PCC, and left parahippocampal gyrus but not in PiB-negative subjects. MCI had lower ePiB than HCS (left PCC, left IFG, and left and right hipp). Lowest ePiB values were found in MCI of 70 years and older, who also displayed high cortical PiB binding. This suggests that lowered regional cerebral blood flow indicated by ePiB is associated with age in the presence but not in the absence of amyloid pathology.
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