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Gasca-Salas C, Pineda-Pardo JA, Del Álamo M, Jiménez T, Trompeta C, Toltsis G, Garcia-Cañamaque L, Fernández-Rodríguez B, Matarazzo M, Plaza de Las Heras I, Natera-Villalba E, Martínez-Fernández R, Duque A, Ruiz de Aguiar S, Blesa J, Rachmilevich I, Obeso JA. Nigrostriatal blood-brain barrier opening in Parkinson's disease. J Neurol Neurosurg Psychiatry 2024:jnnp-2023-332967. [PMID: 38760152 DOI: 10.1136/jnnp-2023-332967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 04/22/2024] [Indexed: 05/19/2024]
Abstract
BACKGROUND The nigrostriatal system is especially vulnerable to neurodegeneration in Parkinson's disease (PD) and the blood-brain barrier (BBB) is a limiting factor for delivery of therapeutic agents to the brain. This pilot study aimed to demonstrate safety, feasibility and tissue penetration (by 18F-Choline-positron emission tomography (PET)) of MR-guided focused ultrasound (MRgFUS) simultaneous BBB opening (BBB-O) in the substantia nigra (SN) and putamen in PD. METHODS Three patients underwent MRgFUS for midbrain and putamen BBB-O. Patients were evaluated clinically and underwent brain MRI with gadolinium (baseline, 24 hours, 14 days and 3 months postprocedure). In two patients, BBB-O was repeated after 2-3 weeks, and 18F-Choline-PET was performed immediately after. RESULTS The right SN and putamen were simultaneously opened unilaterally in 3 patients once and the left SN in 1 patient in a different session. No severe clinical or neuroimaging adverse events developed in any patient. 18F-Choline-PET uptake was enhanced in the targeted SN and putamen regions. CONCLUSION BBB-O of the nigrostriatal system is a feasible and well-tolerated approach in patients with PD. 18F-Choline-PET uptake indicates penetration into the parenchyma after BBB-O, which suggests that the opening is functionally effective. This minimally invasive technique could facilitate delivery of putative neurorestorative molecules to brain regions vulnerable to neurodegeneration.
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Affiliation(s)
- Carmen Gasca-Salas
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain
| | - José A Pineda-Pardo
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain
| | - Marta Del Álamo
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
| | - Tamara Jiménez
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
| | - Clara Trompeta
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
- PhD Program in Health Sciences, University of Alcala de Henares, Alcalá de Henares, Madrid. Spain 28054, Alcalá de Henares, Spain
| | | | - Lina Garcia-Cañamaque
- Nuclear Medicine Department. PET-MRI centre, Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
| | - Beatriz Fernández-Rodríguez
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
| | - Michele Matarazzo
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain
| | - Isabel Plaza de Las Heras
- Nuclear Medicine Department. PET-MRI centre, Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
| | - Elena Natera-Villalba
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
| | - Raúl Martínez-Fernández
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain
| | - Alicia Duque
- Neuroradiology Unit, Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
| | | | - Javier Blesa
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain
- Facultad HM de Ciencias de la Salud de la Universidad Camilo José Cela, Madrid, Spain
| | | | - José A Obeso
- HM CINAC (Centro Integral de Neurociencias Abarca Campal), Hospital Universitario HM Puerta del Sur, HM Hospitales, Madrid, Spain
- Instituto de Investigación Sanitaria HM Hospitales, Madrid, Spain
- Centro de Investigacion Biomedica en Red sobre Enfermedades Neurodegenerativas, Madrid, Spain
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Ciérvide R, Montero Á, García-Rico E, García-Aranda M, Herrero M, Skaarup J, Benassi L, Barrera MJ, Vega E, Rojas B, Bratos R, Luna A, Parras M, López M, Delgado A, Quevedo P, Castilla S, Feyjoo M, Higueras A, Prieto M, Suarez-Gauthier A, Garcia-Cañamaque L, Escolán N, Álvarez B, Chen X, Alonso R, López M, Hernando O, Valero J, Sánchez E, Ciruelos E, Rubio C. Primary Chemoradiotherapy Treatment (PCRT) for HER2+ and Triple Negative Breast Cancer Patients: A Feasible Combination. Cancers (Basel) 2022; 14:cancers14184531. [PMID: 36139688 PMCID: PMC9496977 DOI: 10.3390/cancers14184531] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 12/02/2022] Open
Abstract
Primary systemic treatment (PST) downsizes the tumor and improves pathological response. The aim of this study is to analyze the feasibility and tolerance of primary concurrent radio−chemotherapy (PCRT) in breast cancer patients. Patients with localized TN/HER2+ tumors were enrolled in this prospective study. Radiation was delivered concomitantly during the first 3 weeks of chemotherapy, and it was based on a 15 fractions scheme, 40.5 Gy/2.7 Gy per fraction to whole breast and nodal levels I-IV. Chemotherapy (CT) was based on Pertuzumab−Trastuzumab−Paclitaxel followed by anthracyclines in HER2+ and CBDCA-Paclitaxel followed by anthracyclines in TN breast cancers patients. A total of 58 patients were enrolled; 25 patients (43%) were TN and 33 patients HER2+ (57%). With a median follow-up of 24.2 months, 56 patients completed PCRT and surgery. A total of 35 patients (87.5%) achieved >90% loss of invasive carcinoma cells in the surgical specimen. The 70.8% and the 53.1% of patients with TN and HER-2+ subtype, respectively, achieved complete pathological response (pCR). This is the first study of concurrent neoadjuvant treatment in breast cancer in which three strategies were applied simultaneously: fractionation of RT (radiotherapy) in 15 sessions, adjustment of CT to tumor phenotype and local planning by PET. The pCR rates are encouraging.
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Affiliation(s)
- Raquel Ciérvide
- Department of Radiation Oncology, HM Hospitales, 28050 Madrid, Spain
- Correspondence: (R.C.); (E.G.-R.); Tel.: +34-669554042 (R.C.); +34-609165218 (E.G.-R.)
| | - Ángel Montero
- Department of Radiation Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Eduardo García-Rico
- Department of Medical Oncology, HM Hospitales, 28050 Madrid, Spain
- Correspondence: (R.C.); (E.G.-R.); Tel.: +34-669554042 (R.C.); +34-609165218 (E.G.-R.)
| | | | - Mercedes Herrero
- Department of Gynecology and Obstetrics, HM Hospitales, 28050 Madrid, Spain
| | - Jessica Skaarup
- Department of Gynecology and Obstetrics, HM Hospitales, 28050 Madrid, Spain
| | - Leticia Benassi
- Department of Gynecology and Obstetrics, HM Hospitales, 28050 Madrid, Spain
| | - Maria José Barrera
- Department of Gynecology and Obstetrics, HM Hospitales, 28050 Madrid, Spain
| | - Estela Vega
- Department of Medical Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Beatriz Rojas
- Department of Medical Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Raquel Bratos
- Department of Medical Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Ana Luna
- Department of Medical Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Manuela Parras
- Department of Radiology, HM Hospitales, 28050 Madrid, Spain
| | - María López
- Department of Radiology, HM Hospitales, 28050 Madrid, Spain
| | - Ana Delgado
- Department of Radiology, HM Hospitales, 28050 Madrid, Spain
| | - Paloma Quevedo
- Department of Radiology, HM Hospitales, 28050 Madrid, Spain
| | | | - Margarita Feyjoo
- Department of Medical Oncology, Hospital Sanitas La Moraleja, 28050 Madrid, Spain
| | - Ana Higueras
- Department of Gynecology and Obstetrics, Hospital Sanitas La Moraleja, 28050 Madrid, Spain
| | - Mario Prieto
- Department of Pathology, HM Hospitales, 28050 Madrid, Spain
| | | | | | - Nieves Escolán
- Department of Plastic Surgery, HM Hospitales, 28050 Madrid, Spain
| | - Beatriz Álvarez
- Department of Radiation Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Xin Chen
- Department of Radiation Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Rosa Alonso
- Department of Radiation Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Mercedes López
- Department of Radiation Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Ovidio Hernando
- Department of Radiation Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Jeannette Valero
- Department of Radiation Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Emilio Sánchez
- Department of Radiation Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Eva Ciruelos
- Department of Medical Oncology, HM Hospitales, 28050 Madrid, Spain
| | - Carmen Rubio
- Department of Radiation Oncology, HM Hospitales, 28050 Madrid, Spain
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Moreira AP, Jamar F, Ozcan Z, Piciu D, Als C, Franceschi M, Trägårdh E, Zagar I, Sowa-Staszczak A, Cachin F, Bennink R, Forrer F, Adamsen TC, Fotopolous A, Kalnina M, Jensen LT, Mussalo H, Simanek M, Garcia-Cañamaque L, Nazarenko S, Mihailovic J, Bar-Sever Z, O'Connell M, Miladinova D, Graham R, Giubbini R, Kaliská L, Rozić D, Krause BJ, Gallowitsch HJ, Györke T, Sediene S, Rumyantsev P, Wadsak W, Kunikowska J. Impact of the COVID-19 pandemic on nuclear medicine departments in Europe. Eur J Nucl Med Mol Imaging 2021; 48:3361-3364. [PMID: 34328532 PMCID: PMC8322112 DOI: 10.1007/s00259-021-05484-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ana Paula Moreira
- Nuclear Medicine Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal. .,Institute for Nuclear Sciences Applied To Health, University of Coimbra, Coimbra, Portugal.
| | - François Jamar
- Nuclear Medicine Department, Cliniques Universitaires St-Luc, Brussels, Belgium
| | - Zehra Ozcan
- Department of Nuclear Medicine, Ege University School of Medicine, Izmir, Turkey
| | - Doina Piciu
- University of Medicine and Pharmacy Iuliu Hațieganu Cluj-Napoca, Cluj-Napoca, Romania.,Nuclear Medicine Department, Institute of Oncology I. Chiricuta Cluj-Napoca, Cluj-Napoca, Romania
| | - Claudine Als
- Department of Nuclear Medicine, Hôpitaux Robert Schuman Zithaklinik, Luxembourg, Luxembourg
| | - Maja Franceschi
- Department of Oncology and Nuclear Medicine, Sestre Milosrdnice UHC, Zagreb, Croatia
| | - Elin Trägårdh
- Clinical Physiology and Nuclear Medicine, Skåne University Hospital and Lund University, Malmö, Sweden
| | - Ivana Zagar
- Department of Nuclear Medicine, Institute of Oncology Ljubljana, Ljubljana, Slovenia
| | - Anna Sowa-Staszczak
- Medical College, Endocrinology Department, Nuclear Medicine Unit, Jagiellonian University, Kraków, Poland
| | - Florent Cachin
- Nuclear Medicine, Jean Perrin Cancer Center, Clermont-Ferrand, France.,Medical Biophysics Department, Clermont Auvergne University, Clermont-Ferrand, France
| | - Roel Bennink
- Radiology and Nuclear Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Flavio Forrer
- Cantonal Hospital St. Gallen, St. Gallen, Switzerland
| | - Tom Christian Adamsen
- Centre for Nuclear Medicine, Department of Radiology, Haukeland University Hospital, Bergen, Norway.,Department of Chemistry, University of Bergen, Bergen, Norway
| | - Andreas Fotopolous
- Nuclear Medicine Department, University Hospital of Ioannina, Ioannina, Greece
| | - Marika Kalnina
- Pauls Stradins Clinical University Hospital, Riga, Latvia
| | | | - Hanna Mussalo
- Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Milan Simanek
- Department of Nuclear Medicine, Hospital Pelhřimov, Pelhřimov, Czech Republic
| | | | - Sergei Nazarenko
- Department of Health Technologies, Tallinn University of Technology, Tallinn, Estonia
| | - Jasna Mihailovic
- Department of Radiology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia.,Centre of Nuclear Medicine, Oncology Institute of Vojvodina, Sremska, Kamenica, Serbia
| | - Zvi Bar-Sever
- Department of Nuclear Medicine, Schneider Children's Medical Center, Petah Tikva, Israel
| | - Martin O'Connell
- Mater University Hospital, University College Dublin, Dublin, Ireland
| | - Daniela Miladinova
- Institute of Pathophysiology and Nuclear Medicine, Faculty of Medicine, University Ss. Cyril and Methodius, Skopje, North Macedonia
| | - Richard Graham
- School of Radiology, Royal United Hospitals, Bath NHS Foundation Trust, Bath, UK
| | - Raffaele Giubbini
- Chair of Nuclear Medicine, University of Brescia and Spedali Civili Hospital, Brescia, Italy
| | - Lucia Kaliská
- Institute of Nuclear and Molecular Medicine, Banská Bystrica, Slovak Republic
| | - Damir Rozić
- Department of Nuclear Medicine, University Hospital Mostar, Mostar, Bosnia and Herzegovina
| | - Bernd J Krause
- Department of Nuclear Medicine, Rostock University Medical Centre, Rostock, Germany
| | - Hans-Jürgen Gallowitsch
- Department of Nuclear Medicine and Endocrinology, Klinikum Klagenfurt Am Wörthersee, Klagenfurt, Austria
| | - Tamás Györke
- Department of Nuclear Medicine/Semmelweis University, Medical Imaging Centre, Budapest, Hungary
| | | | - Pavel Rumyantsev
- SOGAZ International Medical Center, Saint-Petersburg, Russian Federation
| | - Wolfgang Wadsak
- Division of Nuclear Medicine, Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Jolanta Kunikowska
- Nuclear Medicine Department, Medical University of Warsaw, Warsaw, Poland
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Duraj T, García-Romero N, Carrión-Navarro J, Madurga R, Ortiz de Mendivil A, Prat-Acin R, Garcia-Cañamaque L, Ayuso-Sacido A. Beyond the Warburg Effect: Oxidative and Glycolytic Phenotypes Coexist within the Metabolic Heterogeneity of Glioblastoma. Cells 2021; 10:202. [PMID: 33498369 PMCID: PMC7922554 DOI: 10.3390/cells10020202] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/16/2021] [Accepted: 01/18/2021] [Indexed: 12/12/2022] Open
Abstract
Glioblastoma (GBM) is the most aggressive primary brain tumor, with a median survival at diagnosis of 16-20 months. Metabolism represents a new attractive therapeutic target; however, due to high intratumoral heterogeneity, the application of metabolic drugs in GBM is challenging. We characterized the basal bioenergetic metabolism and antiproliferative potential of metformin (MF), dichloroacetate (DCA), sodium oxamate (SOD) and diazo-5-oxo-L-norleucine (DON) in three distinct glioma stem cells (GSCs) (GBM18, GBM27, GBM38), as well as U87MG. GBM27, a highly oxidative cell line, was the most resistant to all treatments, except DON. GBM18 and GBM38, Warburg-like GSCs, were sensitive to MF and DCA, respectively. Resistance to DON was not correlated with basal metabolic phenotypes. In combinatory experiments, radiomimetic bleomycin exhibited therapeutically relevant synergistic effects with MF, DCA and DON in GBM27 and DON in all other cell lines. MF and DCA shifted the metabolism of treated cells towards glycolysis or oxidation, respectively. DON consistently decreased total ATP production. Our study highlights the need for a better characterization of GBM from a metabolic perspective. Metabolic therapy should focus on both glycolytic and oxidative subpopulations of GSCs.
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Affiliation(s)
- Tomás Duraj
- Faculty of Medicine, Institute for Applied Molecular Medicine (IMMA), CEU San Pablo University, 28668 Madrid, Spain;
| | - Noemí García-Romero
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, 28223 Madrid, Spain; (N.G.-R.); (J.C.-N.); (R.M.)
- Brain Tumor Laboratory, Fundación Vithas, Grupo Hospitales Vithas, 28043 Madrid, Spain
| | - Josefa Carrión-Navarro
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, 28223 Madrid, Spain; (N.G.-R.); (J.C.-N.); (R.M.)
- Brain Tumor Laboratory, Fundación Vithas, Grupo Hospitales Vithas, 28043 Madrid, Spain
| | - Rodrigo Madurga
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, 28223 Madrid, Spain; (N.G.-R.); (J.C.-N.); (R.M.)
- Brain Tumor Laboratory, Fundación Vithas, Grupo Hospitales Vithas, 28043 Madrid, Spain
| | | | - Ricardo Prat-Acin
- Neurosurgery Department, Hospital Universitario La Fe, 46026 Valencia, Spain;
| | | | - Angel Ayuso-Sacido
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, 28223 Madrid, Spain; (N.G.-R.); (J.C.-N.); (R.M.)
- Brain Tumor Laboratory, Fundación Vithas, Grupo Hospitales Vithas, 28043 Madrid, Spain
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Torrado-Carvajal A, Herraiz JL, Alcain E, Montemayor AS, Garcia-Cañamaque L, Hernandez-Tamames JA, Rozenholc Y, Malpica N. Fast Patch-Based Pseudo-CT Synthesis from T1-Weighted MR Images for PET/MR Attenuation Correction in Brain Studies. J Nucl Med 2016; 57:136-43. [PMID: 26493204 DOI: 10.2967/jnumed.115.156299] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 10/07/2015] [Indexed: 02/07/2023] Open
Abstract
UNLABELLED Attenuation correction in hybrid PET/MR scanners is still a challenging task. This paper describes a methodology for synthesizing a pseudo-CT volume from a single T1-weighted volume, thus allowing us to create accurate attenuation correction maps. METHODS We propose a fast pseudo-CT volume generation from a patient-specific MR T1-weighted image using a groupwise patch-based approach and an MRI-CT atlas dictionary. For every voxel in the input MR image, we compute the similarity of the patch containing that voxel to the patches of all MR images in the database that lie in a certain anatomic neighborhood. The pseudo-CT volume is obtained as a local weighted linear combination of the CT values of the corresponding patches. The algorithm was implemented in a graphical processing unit (GPU). RESULTS We evaluated our method both qualitatively and quantitatively for PET/MR correction. The approach performed successfully in all cases considered. We compared the SUVs of the PET image obtained after attenuation correction using the patient-specific CT volume and using the corresponding computed pseudo-CT volume. The patient-specific correlation between SUV obtained with both methods was high (R(2) = 0.9980, P < 0.0001), and the Bland-Altman test showed that the average of the differences was low (0.0006 ± 0.0594). A region-of-interest analysis was also performed. The correlation between SUVmean and SUVmax for every region was high (R(2) = 0.9989, P < 0.0001, and R(2) = 0.9904, P < 0.0001, respectively). CONCLUSION The results indicate that our method can accurately approximate the patient-specific CT volume and serves as a potential solution for accurate attenuation correction in hybrid PET/MR systems. The quality of the corrected PET scan using our pseudo-CT volume is comparable to having acquired a patient-specific CT scan, thus improving the results obtained with the ultrashort-echo-time-based attenuation correction maps currently used in the scanner. The GPU implementation substantially decreases computational time, making the approach suitable for real applications.
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Affiliation(s)
- Angel Torrado-Carvajal
- Medical Image Analysis and Biometry Laboratory, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain Madrid-MIT M+Visión Consortium, Madrid, Spain
| | - Joaquin L Herraiz
- Madrid-MIT M+Visión Consortium, Madrid, Spain Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Eduardo Alcain
- Department of Computer Science, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - Antonio S Montemayor
- Department of Computer Science, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - Lina Garcia-Cañamaque
- Hospital Universitario HM Puerta del Sur, HM Hospitales, Móstoles, Madrid, Spain; and
| | - Juan A Hernandez-Tamames
- Medical Image Analysis and Biometry Laboratory, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain Madrid-MIT M+Visión Consortium, Madrid, Spain
| | - Yves Rozenholc
- MAP5, CNRS UMR 8145, University Paris Descartes, Paris, France
| | - Norberto Malpica
- Medical Image Analysis and Biometry Laboratory, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain Madrid-MIT M+Visión Consortium, Madrid, Spain
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Torrado-Carvajal A, Herraiz JL, Alcain E, Montemayor AS, Garcia-Cañamaque L, Hernandez-Tamames JA, Rozenholc Y, Malpica N. Fast Patch-Based Pseudo-CT Synthesis from T1-Weighted MR Images for PET/MR Attenuation Correction in Brain Studies. J Nucl Med 2015. [DOI: https://doi.org/10.2967/jnumed.115.156299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Oelstrom M, Núñez R, Sanchez P, Sanchez-Saugar E, Garcia-Cañamaque L, Duran I. [Clinical application of fluorocholine positron emission tomography in relapsed prostate cancer]. Actas Urol Esp 2012; 36:444-6. [PMID: 22710092 DOI: 10.1016/j.acuro.2011.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 11/20/2011] [Accepted: 11/24/2011] [Indexed: 11/15/2022]
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