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Klintström E, Klintström B, Smedby Ö, Moreno R. Automated region growing-based segmentation for trabecular bone structure in fresh-frozen human wrist specimens. BMC Med Imaging 2024; 24:101. [PMID: 38693510 PMCID: PMC11061919 DOI: 10.1186/s12880-024-01281-w] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/23/2024] [Indexed: 05/03/2024] Open
Abstract
Bone strength depends on both mineral content and bone structure. Measurements of bone microstructure on specimens can be performed by micro-CT. In vivo measurements are reliably performed by high-resolution peripheral computed tomography (HR-pQCT) using dedicated software. In previous studies from our research group, trabecular bone properties on CT data of defatted specimens from many different CT devices have been analyzed using an Automated Region Growing (ARG) algorithm-based code, showing strong correlations to micro-CT.The aim of the study was to validate the possibility of segmenting and measuring trabecular bone structure from clinical CT data of fresh-frozen human wrist specimens. Data from micro-CT was used as reference. The hypothesis was that the ARG-based in-house built software could be used for such measurements.HR-pQCT image data at two resolutions (61 and 82 µm isotropic voxels) from 23 fresh-frozen human forearms were analyzed. Correlations to micro-CT were strong, varying from 0.72 to 0.99 for all parameters except trabecular termini and nodes. The bone volume fraction had correlations varying from 0.95 to 0.98 but was overestimated compared to micro-CT, especially at the lower resolution. Trabecular separation and spacing were the most stable parameters with correlations at 0.80-0.97 and mean values in the same range as micro-CT.Results from this in vitro study show that an ARG-based software could be used for segmenting and measuring 3D trabecular bone structure from clinical CT data of fresh-frozen human wrist specimens using micro-CT data as reference. Over-and underestimation of several of the bone structure parameters must however be taken into account.
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Affiliation(s)
- Eva Klintström
- Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköping, SE-58185, Sweden.
- Department of Radiology and Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, SE-58185, Sweden.
| | - Benjamin Klintström
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Hälsovägen 11C, Huddinge, SE-14157, Sweden
| | - Örjan Smedby
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Hälsovägen 11C, Huddinge, SE-14157, Sweden
| | - Rodrigo Moreno
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Hälsovägen 11C, Huddinge, SE-14157, Sweden
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Siegbahn M, Jörgens D, Asp F, Hultcrantz M, Moreno R, Engmér Berglin C. Asymmetry in Cortical Thickness of the Heschl's Gyrus in Unilateral Ear Canal Atresia. Otol Neurotol 2024; 45:e342-e350. [PMID: 38361347 DOI: 10.1097/mao.0000000000004137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
HYPOTHESIS Unilateral congenital conductive hearing impairment in ear canal atresia leads to atrophy of the gray matter of the contralateral primary auditory cortex or changes in asymmetry pattern if left untreated in childhood. BACKGROUND Unilateral ear canal atresia with associated severe conductive hearing loss results in deteriorated sound localization and difficulties in understanding of speech in a noisy environment. Cortical atrophy in the Heschl's gyrus has been reported in acquired sensorineural hearing loss but has not been studied in unilateral conductive hearing loss. METHODS We obtained T1w and T2w FLAIR MRI data from 17 subjects with unilateral congenital ear canal atresia and 17 matched controls. Gray matter volume and thickness were measured in the Heschl's gyrus using Freesurfer. RESULTS In unilateral congenital ear canal atresia, Heschl's gyrus exhibited cortical thickness asymmetry (right thicker than left, corrected p = 0.0012, mean difference 0.25 mm), while controls had symmetric findings. Gray matter volume and total thickness did not differ from controls with normal hearing. CONCLUSION We observed cortical thickness asymmetry in congenital unilateral ear canal atresia but no evidence of contralateral cortex atrophy. Further research is needed to understand the implications of this asymmetry on central auditory processing deficits.
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Affiliation(s)
| | - Daniel Jörgens
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Filip Asp
- Division of ENT diseases, Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Malou Hultcrantz
- Division of ENT diseases, Department of Clinical Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Rodrigo Moreno
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
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De La Rosa Á, Ruiz G, Moreno R. Analysis of the Rheological Properties of Natural Hydraulic Lime-Based Suspensions for Sustainable Construction and Heritage Conservation. Materials (Basel) 2024; 17:825. [PMID: 38399078 PMCID: PMC10890018 DOI: 10.3390/ma17040825] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024]
Abstract
Natural hydraulic lime (NHL)-based binders play a crucial role in preserving cultural heritage structures, ensuring integrity and longevity. Beyond traditional uses, these binders exhibit potential for integration into both non-structural and structural components, being compatible with innovative manufacturing processes such as digital fabrication. Meticulously designed grouts, with applicability in their fresh and hardened states, are essential for heritage stability. This study explores the relationships between mineral additions, chemical admixtures, and lime for grout formulations, aiming to advance our understanding and inform the optimization of materials for heritage restoration. Key questions include the influence of natural volcanic pozzolan (NVP) and metakaolin (MK) on rheology and the impact of varying ratios of superplasticizer on NHL-based grout's rheological behavior. This systematic evaluation of rheological parameters aims to innovate mix designs, expanding NHL-based binders' applicability in construction and science. Our hypotheses suggest that well-designed lime grout formulations, incorporating NVP and MK, can enhance rheological properties, addressing challenges in sustainable construction and heritage conservation. This research provides valuable insights for optimizing lime-based materials, fostering advancements in heritage restoration, and promoting wider NHL-based binder adoption in diverse construction applications.
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Affiliation(s)
- Ángel De La Rosa
- ETS de Ingenieros de Caminos, C. y P., Universidad de Castilla–La Mancha, Av. Camilo José Cela 2, 13071 Ciudad Real, Spain; (Á.D.L.R.); (G.R.)
| | - Gonzalo Ruiz
- ETS de Ingenieros de Caminos, C. y P., Universidad de Castilla–La Mancha, Av. Camilo José Cela 2, 13071 Ciudad Real, Spain; (Á.D.L.R.); (G.R.)
| | - Rodrigo Moreno
- Instituto de Cerámica y Vidrio (CSIC), C. Kelsen 5, Campus de Cantoblanco, 28049 Madrid, Spain
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Dartora C, Marseglia A, Mårtensson G, Rukh G, Dang J, Muehlboeck JS, Wahlund LO, Moreno R, Barroso J, Ferreira D, Schiöth HB, Westman E. A deep learning model for brain age prediction using minimally preprocessed T1w images as input. Front Aging Neurosci 2024; 15:1303036. [PMID: 38259636 PMCID: PMC10800627 DOI: 10.3389/fnagi.2023.1303036] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/04/2023] [Indexed: 01/24/2024] Open
Abstract
Introduction In the last few years, several models trying to calculate the biological brain age have been proposed based on structural magnetic resonance imaging scans (T1-weighted MRIs, T1w) using multivariate methods and machine learning. We developed and validated a convolutional neural network (CNN)-based biological brain age prediction model that uses one T1w MRI preprocessing step when applying the model to external datasets to simplify implementation and increase accessibility in research settings. Our model only requires rigid image registration to the MNI space, which is an advantage compared to previous methods that require more preprocessing steps, such as feature extraction. Methods We used a multicohort dataset of cognitively healthy individuals (age range = 32.0-95.7 years) comprising 17,296 MRIs for training and evaluation. We compared our model using hold-out (CNN1) and cross-validation (CNN2-4) approaches. To verify generalisability, we used two external datasets with different populations and MRI scan characteristics to evaluate the model. To demonstrate its usability, we included the external dataset's images in the cross-validation training (CNN3). To ensure that our model used only the brain signal on the image, we also predicted brain age using skull-stripped images (CNN4). Results The trained models achieved a mean absolute error of 2.99, 2.67, 2.67, and 3.08 years for CNN1-4, respectively. The model's performance in the external dataset was in the typical range of mean absolute error (MAE) found in the literature for testing sets. Adding the external dataset to the training set (CNN3), overall, MAE is unaffected, but individual cohort MAE improves (5.63-2.25 years). Salience maps of predictions reveal that periventricular, temporal, and insular regions are the most important for age prediction. Discussion We provide indicators for using biological (predicted) brain age as a metric for age correction in neuroimaging studies as an alternative to the traditional chronological age. In conclusion, using different approaches, our CNN-based model showed good performance using one T1w brain MRI preprocessing step. The proposed CNN model is made publicly available for the research community to be easily implemented and used to study ageing and age-related disorders.
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Affiliation(s)
- Caroline Dartora
- Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Anna Marseglia
- Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Gustav Mårtensson
- Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Gull Rukh
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, Uppsala, Sweden
| | - Junhua Dang
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, Uppsala, Sweden
| | - J-Sebastian Muehlboeck
- Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Lars-Olof Wahlund
- Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Rodrigo Moreno
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
| | - José Barroso
- Facultad de Ciencias de la Salud, Universidad Fernando Pessoa Canarias, Las Palmas, España
| | - Daniel Ferreira
- Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
- Facultad de Ciencias de la Salud, Universidad Fernando Pessoa Canarias, Las Palmas, España
| | - Helgi B. Schiöth
- Department of Surgical Sciences, Functional Pharmacology and Neuroscience, Uppsala University, Uppsala, Sweden
| | - Eric Westman
- Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
- Department of Neuroimaging, Centre for Neuroimaging Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
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Costa-Garcia M, Rojas JJ, Ramos MD, Barlabé P, Calvo P, Navas J, Alemany R, Moreno R. Oncolytic adenovirus coding for shedding-resistant MICA enhances immune responses against tumors. Cancer Immunol Immunother 2024; 73:5. [PMID: 38180524 PMCID: PMC10770194 DOI: 10.1007/s00262-023-03611-3] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/13/2023] [Indexed: 01/06/2024]
Abstract
Cancer immunotherapies strive to overcome tumor-induced immune suppression and activate antitumor immune responses. Although cytotoxic T lymphocytes (CTLs) play a pivotal role in this process, natural killer (NK) cells have also demonstrated remarkable tumor-killing abilities, given their ability to discriminate tumor cells from normal cells and mediate specific antitumoral cytotoxicity. NK cells activation depends on a balance between activation and inhibition signals from several ligands/receptors. Among them, MICA/NKG2D axis is a master regulator of NK activation. MHC class I chain-related polypeptide A (MICA) expression is upregulated by many tumor cell lines and primary tumors and serves as a ligand for the activating NK group 2D (NKG2D) receptor on NK cells and subpopulations of T cells. However, cancer cells can cleave MICA, making it soluble and de-targeting tumor cells from NK cells, leading to tumor immune escape.In this study, we present ICOVIR15KK-MICAMut, an oncolytic adenovirus (OAdv) armed with a transgene encoding a non-cleavable MICA to promote NK-mediated cell-killing capacity and activate the immune response against cancer cells. We first demonstrated the correct MICA overexpression from infected cells. Moreover, our MICA-expressing OAdv promotes higher NK activation and killing capacity than the non-armed virus in vitro. In addition, the armed virus also demonstrated significant antitumor activity in immunodeficient mice in the presence of human PBMCs, indicating the activation of human NK cells. Finally, OAdv-MICA overexpression in immunocompetent tumor-bearing mice elicits tumor-specific immune response resulting in a greater tumor growth control.In summary, this study highlights the significance of NK cells in cancer immunotherapy and presents an innovative approach using a modified oncolytic virus to enhance NK cell activation and antitumor immune response. These findings suggest promising potential for future research and clinical applications.
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Affiliation(s)
- M Costa-Garcia
- Cancer Immunotherapy Group, Oncobell and iProCURE programs, IDIBELL-Institut Català d'Oncologia, l'Hospitalet de Llobregat, Barcelona, Spain
| | - J J Rojas
- Immunology Unit, Department of Pathology and Experimental Therapies, School of Medicine, University of Barcelona-UB, Barcelona, Spain
- Immunity, Inflammation, and Cancer Group, Oncobell program, Institut d'Investigació Biomèdica de Bellvitge-IDIBELL, l'Hospitalet de Llobregat, Barcelona, Spain
| | - M D Ramos
- Cancer Immunotherapy Group, Oncobell and iProCURE programs, IDIBELL-Institut Català d'Oncologia, l'Hospitalet de Llobregat, Barcelona, Spain
| | - P Barlabé
- Cancer Immunotherapy Group, Oncobell and iProCURE programs, IDIBELL-Institut Català d'Oncologia, l'Hospitalet de Llobregat, Barcelona, Spain
- Program of Regenerative Medicine, Centre for Applied Medical Research (CIMA), University of Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), Pamplona, Pamplona, 31008, Spain
| | - P Calvo
- Cancer Immunotherapy Group, Oncobell and iProCURE programs, IDIBELL-Institut Català d'Oncologia, l'Hospitalet de Llobregat, Barcelona, Spain
| | - J Navas
- Cancer Immunotherapy Group, Oncobell and iProCURE programs, IDIBELL-Institut Català d'Oncologia, l'Hospitalet de Llobregat, Barcelona, Spain
- Immunology Unit, Department of Pathology and Experimental Therapies, School of Medicine, University of Barcelona-UB, Barcelona, Spain
- Immunity, Inflammation, and Cancer Group, Oncobell program, Institut d'Investigació Biomèdica de Bellvitge-IDIBELL, l'Hospitalet de Llobregat, Barcelona, Spain
| | - R Alemany
- Cancer Immunotherapy Group, Oncobell and iProCURE programs, IDIBELL-Institut Català d'Oncologia, l'Hospitalet de Llobregat, Barcelona, Spain
| | - R Moreno
- Cancer Immunotherapy Group, Oncobell and iProCURE programs, IDIBELL-Institut Català d'Oncologia, l'Hospitalet de Llobregat, Barcelona, Spain.
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Bittencourt GHR, Carvalho-Santos VL, Altbir D, Chubykalo-Fesenko O, Moreno R. Tuning domain wall oscillation frequency in bent nanowires through a mechanical analogy. Nanotechnology 2023; 35:065709. [PMID: 38009501 DOI: 10.1088/1361-6528/ad0a4b] [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] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 11/07/2023] [Indexed: 11/29/2023]
Abstract
In this work, we present a theoretical model for domain wall (DW) oscillations in a curved magnetic nanowire with a constant curvature under the action of a uniaxial magnetic field. Our results show that the DW dynamics can be described as that of the mechanical pendulum, and both the NW curvature and the external magnetic field influence its oscillatory frequency. A comparison between our theoretical approach and experimental data in the literature shows an excellent agreement. The results presented here can be used to design devices demanding the proper control of the DW oscillatory motion in NWs.
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Affiliation(s)
- G H R Bittencourt
- Departamento de Física, Universidade Federal de Viçosa, Av. PH Rolfs s/n, 36570-900, Viçosa, Brazil
| | - V L Carvalho-Santos
- Departamento de Física, Universidade Federal de Viçosa, Av. PH Rolfs s/n, 36570-900, Viçosa, Brazil
| | - D Altbir
- Universidad de Santiago de Chile, CEDENNA, 9170124, Santiago, Chile
- Universidad Diego Portales, Ejército 441, Santiago, Chile
| | - O Chubykalo-Fesenko
- Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid, Spain
| | - R Moreno
- Instituto de Física Enrique Gaviola, IFEG (UNC-CONICET), Medina Allende s/n, Ciudad Universitaria, 5000 Córdoba, Argentina
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Hain A, Jörgens D, Moreno R. Randomized iterative spherical-deconvolution informed tractogram filtering. Neuroimage 2023; 278:120248. [PMID: 37423271 DOI: 10.1016/j.neuroimage.2023.120248] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 06/15/2023] [Accepted: 06/23/2023] [Indexed: 07/11/2023] Open
Abstract
Tractography has become an indispensable part of brain connectivity studies. However, it is currently facing problems with reliability. In particular, a substantial amount of nerve fiber reconstructions (streamlines) in tractograms produced by state-of-the-art tractography methods are anatomically implausible. To address this problem, tractogram filtering methods have been developed to remove faulty connections in a postprocessing step. This study takes a closer look at one such method, Spherical-deconvolution Informed Filtering of Tractograms (SIFT), which uses a global optimization approach to improve the agreement between the remaining streamlines after filtering and the underlying diffusion magnetic resonance imaging data. SIFT is not suitable for judging the compliance of individual streamlines with the acquired data since its results depend on the size and composition of the surrounding tractogram. To tackle this problem, we propose applying SIFT to randomly selected tractogram subsets in order to retrieve multiple assessments for each streamline. This approach makes it possible to identify streamlines with very consistent filtering results, which were used as pseudo-ground truths for training classifiers. The trained classifier is able to distinguish the obtained groups of complying and non-complying streamlines with the acquired data with an accuracy above 80%.
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Affiliation(s)
- Antonia Hain
- Saarland University, Faculty of Mathematics and Computer Science, Campus E1.7, Saarbruecken, 66041, Saarland, Germany.
| | - Daniel Jörgens
- Division of Brain, Imaging, and Behaviour, Krembil Research Institute, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada; KTH Royal Institute of Technology, Department of Biomedical Engineering and Health Systems, Hälsovägen 11C, Huddinge, 14157, Stockholm, Sweden.
| | - Rodrigo Moreno
- KTH Royal Institute of Technology, Department of Biomedical Engineering and Health Systems, Hälsovägen 11C, Huddinge, 14157, Stockholm, Sweden.
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Sanjuan E, Pancorbo O, Santana K, Miñarro O, Sala V, Muchada M, Boned S, Juega JM, Pagola J, García-Tornel Á, Requena M, Rodríguez-Villatoro N, Rodríguez-Luna D, Deck M, Ribo M, Molina CA, Meler P, Romero V, Dalmases G, Rodríguez-Samaniego MT, Calleja L, Gutierrez T, Peña L, Gallego JC, Lorenzo E, Gonzalez Y, Moreno R, Rubiera M. Management of acute stroke. Specific nursing care and treatments in the stroke unit. Neurologia 2023:S2173-5808(23)00022-6. [PMID: 37120108 DOI: 10.1016/j.nrleng.2020.07.026] [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] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 07/29/2020] [Indexed: 05/01/2023] Open
Abstract
OBJECTIVE This study provides a series of updated, evidence-based recommendations for the management of acute stroke. We aim to lay a foundation for the development of individual centres' internal protocols, serving as a reference for nursing care. METHODS We review the available evidence on acute stroke care. The most recent national and international guidelines were consulted. Levels of evidence and degrees of recommendation are based on the Oxford Centre for Evidence-Based Medicine classification. RESULTS The study describes prehospital acute stroke care, the operation of the code stroke protocol, care provided by the stroke team upon the patient's arrival at hospital, reperfusion treatments and their limitations, admission to the stroke unit, nursing care in the stroke unit, and discharge from hospital. CONCLUSIONS These guidelines provide general, evidence-based recommendations to guide professionals who care for patients with acute stroke. However, limited data are available on some aspects, showing the need for continued research on acute stroke management.
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Affiliation(s)
- E Sanjuan
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.
| | - O Pancorbo
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain; Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - K Santana
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - O Miñarro
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - V Sala
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - M Muchada
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - S Boned
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - J M Juega
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - J Pagola
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Á García-Tornel
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - M Requena
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - N Rodríguez-Villatoro
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - D Rodríguez-Luna
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - M Deck
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - M Ribo
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - C A Molina
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - P Meler
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - V Romero
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - G Dalmases
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - M T Rodríguez-Samaniego
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - L Calleja
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - T Gutierrez
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - L Peña
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - J C Gallego
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - E Lorenzo
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - Y Gonzalez
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - R Moreno
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
| | - M Rubiera
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain
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Fu J, Tzortzakakis A, Barroso J, Westman E, Ferreira D, Moreno R. Fast three-dimensional image generation for healthy brain aging using diffeomorphic registration. Hum Brain Mapp 2023; 44:1289-1308. [PMID: 36468536 PMCID: PMC9921328 DOI: 10.1002/hbm.26165] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 06/16/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 12/12/2022] Open
Abstract
Predicting brain aging can help in the early detection and prognosis of neurodegenerative diseases. Longitudinal cohorts of healthy subjects scanned through magnetic resonance imaging (MRI) have been essential to understand the structural brain changes due to aging. However, these cohorts suffer from missing data due to logistic issues in the recruitment of subjects. This paper proposes a methodology for filling up missing data in longitudinal cohorts with anatomically plausible images that capture the subject-specific aging process. The proposed methodology is developed within the framework of diffeomorphic registration. First, two novel modules are introduced within Synthmorph, a fast, state-of-the-art deep learning-based diffeomorphic registration method, to simulate the aging process between the first and last available MRI scan for each subject in three-dimensional (3D). The use of image registration also makes the generated images plausible by construction. Second, we used six image similarity measurements to rearrange the generated images to the specific age range. Finally, we estimated the age of every generated image by using the assumption of linear brain decay in healthy subjects. The methodology was evaluated on 2662 T1-weighted MRI scans from 796 healthy participants from 3 different longitudinal cohorts: Alzheimer's Disease Neuroimaging Initiative, Open Access Series of Imaging Studies-3, and Group of Neuropsychological Studies of the Canary Islands (GENIC). In total, we generated 7548 images to simulate the access of a scan per subject every 6 months in these cohorts. We evaluated the quality of the synthetic images using six quantitative measurements and a qualitative assessment by an experienced neuroradiologist with state-of-the-art results. The assumption of linear brain decay was accurate in these cohorts (R2 ∈ [.924, .940]). The experimental results show that the proposed methodology can produce anatomically plausible aging predictions that can be used to enhance longitudinal datasets. Compared to deep learning-based generative methods, diffeomorphic registration is more likely to preserve the anatomy of the different structures of the brain, which makes it more appropriate for its use in clinical applications. The proposed methodology is able to efficiently simulate anatomically plausible 3D MRI scans of brain aging of healthy subjects from two images scanned at two different time points.
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Affiliation(s)
- Jingru Fu
- Division of Biomedical ImagingDepartment of Biomedical Engineering and Health Systems, KTH Royal Institute of TechnologyStockholmSweden
| | - Antonios Tzortzakakis
- Division of RadiologyDepartment for Clinical Science, Intervention and Technology (CLINTEC), Karolinska InstitutetStockholmSweden
- Medical Radiation Physics and Nuclear MedicineFunctional Unit of Nuclear Medicine, Karolinska University HospitalHuddingeStockholmSweden
| | - José Barroso
- Department of PsychologyFaculty of Health Sciences, University Fernando Pessoa CanariasLas PalmasSpain
| | - Eric Westman
- Division of Clinical GeriatricsCentre for Alzheimer Research, Department of Neurobiology, Care Sciences, and Society (NVS), Karolinska InstitutetStockholmSweden
- Department of NeuroimagingCentre for Neuroimaging Sciences, Institute of Psychiatry, Psychology and Neuroscience, King's College LondonLondonUnited Kingdom
| | - Daniel Ferreira
- Division of Clinical GeriatricsCentre for Alzheimer Research, Department of Neurobiology, Care Sciences, and Society (NVS), Karolinska InstitutetStockholmSweden
| | - Rodrigo Moreno
- Division of Biomedical ImagingDepartment of Biomedical Engineering and Health Systems, KTH Royal Institute of TechnologyStockholmSweden
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10
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Moreno R, Winck JC, Rua F. In memoriam of Jordi Mancebo. Pulmonology 2022; 29:S2531-0437(22)00203-3. [PMID: 36210327 DOI: 10.1016/j.pulmoe.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 01/02/2023] Open
Affiliation(s)
- R Moreno
- H. de São José, Centro Hospitalar Universitário de Lisboa Central, E.P.E., Faculdade de Ciências Médicas, Nova Medical School, Lisboa, Faculdade de Ciências da Saúde, Universidade da Beira Interior, Covilhã, Portugal
| | - J C Winck
- Faculdade de Medicina da Universidade do Porto, do Porto, Portugal.
| | - F Rua
- Servico de Cuidados Intensivos do Centro Hospitalar do Porto, Instituto de Ciências Biomédicas Abel Salazar, Abel Salazar, Porto, Portugal
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11
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Siegbahn M, Engmér Berglin C, Moreno R. Automatic segmentation of the core of the acoustic radiation in humans. Front Neurol 2022; 13:934650. [PMID: 36212647 PMCID: PMC9539320 DOI: 10.3389/fneur.2022.934650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/19/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction Acoustic radiation is one of the most important white matter fiber bundles of the human auditory system. However, segmenting the acoustic radiation is challenging due to its small size and proximity to several larger fiber bundles. TractSeg is a method that uses a neural network to segment some of the major fiber bundles in the brain. This study aims to train TractSeg to segment the core of acoustic radiation. Methods We propose a methodology to automatically extract the acoustic radiation from human connectome data, which is both of high quality and high resolution. The segmentation masks generated by TractSeg of nearby fiber bundles are used to steer the generation of valid streamlines through tractography. Only streamlines connecting the Heschl's gyrus and the medial geniculate nucleus were considered. These streamlines are then used to create masks of the core of the acoustic radiation that is used to train the neural network of TractSeg. The trained network is used to automatically segment the acoustic radiation from unseen images. Results The trained neural network successfully extracted anatomically plausible masks of the core of the acoustic radiation in human connectome data. We also applied the method to a dataset of 17 patients with unilateral congenital ear canal atresia and 17 age- and gender-paired controls acquired in a clinical setting. The method was able to extract 53/68 acoustic radiation in the dataset acquired with clinical settings. In 14/68 cases, the method generated fragments of the acoustic radiation and completely failed in a single case. The performance of the method on patients and controls was similar. Discussion In most cases, it is possible to segment the core of the acoustic radiations even in images acquired with clinical settings in a few seconds using a pre-trained neural network.
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Affiliation(s)
- Malin Siegbahn
- Division of Ear, Nose and Throat Diseases, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden
- Medical Unit Ear, Nose, Throat and Hearing, Karolinska University Hospital, Stockholm, Sweden
| | - Cecilia Engmér Berglin
- Division of Ear, Nose and Throat Diseases, Department of Clinical Science, Intervention and Technology, Karolinska Institute, Stockholm, Sweden
- Medical Unit Ear, Nose, Throat and Hearing, Karolinska University Hospital, Stockholm, Sweden
| | - Rodrigo Moreno
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
- *Correspondence: Rodrigo Moreno
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12
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Klintström B, Henriksson L, Moreno R, Malusek A, Smedby Ö, Woisetschläger M, Klintström E. Photon-counting detector CT and energy-integrating detector CT for trabecular bone microstructure analysis of cubic specimens from human radius. Eur Radiol Exp 2022; 6:31. [PMID: 35882679 PMCID: PMC9325937 DOI: 10.1186/s41747-022-00286-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [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: 04/23/2022] [Accepted: 05/23/2022] [Indexed: 12/03/2022] Open
Abstract
Background As bone microstructure is known to impact bone strength, the aim of this in vitro study was to evaluate if the emerging photon-counting detector computed tomography (PCD-CT) technique may be used for measurements of trabecular bone structures like thickness, separation, nodes, spacing and bone volume fraction. Methods Fourteen cubic sections of human radius were scanned with two multislice CT devices, one PCD-CT and one energy-integrating detector CT (EID-CT), using micro-CT as a reference standard. The protocols for PCD-CT and EID-CT were those recommended for inner- and middle-ear structures, although at higher mAs values: PCD-CT at 450 mAs and EID-CT at 600 (dose equivalent to PCD-CT) and 1000 mAs. Average measurements of the five bone parameters as well as dispersion measurements of thickness, separation and spacing were calculated using a three-dimensional automated region growing (ARG) algorithm. Spearman correlations with micro-CT were computed. Results Correlations with micro-CT, for PCD-CT and EID-CT, ranged from 0.64 to 0.98 for all parameters except for dispersion of thickness, which did not show a significant correlation (p = 0.078 to 0.892). PCD-CT had seven of the eight parameters with correlations ρ > 0.7 and three ρ > 0.9. The dose-equivalent EID-CT instead had four parameters with correlations ρ > 0.7 and only one ρ > 0.9. Conclusions In this in vitro study of radius specimens, strong correlations were found between trabecular bone structure parameters computed from PCD-CT data when compared to micro-CT. This suggests that PCD-CT might be useful for analysing bone microstructure in the peripheral human skeleton.
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Affiliation(s)
- Benjamin Klintström
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Hälsovägen 11C, SE-14157, Huddinge, Sweden.
| | - Lilian Henriksson
- Center for Medical Image Science and Visualization (CMIV), Linköping University, SE-58185, Linköping, Sweden.,Department of Radiology and Department of Health, Medicine and Caring Sciences, Linköping University, SE-58185, Linköping, Sweden
| | - Rodrigo Moreno
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Hälsovägen 11C, SE-14157, Huddinge, Sweden
| | - Alexandr Malusek
- Center for Medical Image Science and Visualization (CMIV), Linköping University, SE-58185, Linköping, Sweden.,Radiation Physics, Department of Health, Medicine and Caring Sciences, Linköping University, SE-58183, Linköping, Sweden
| | - Örjan Smedby
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Hälsovägen 11C, SE-14157, Huddinge, Sweden
| | - Mischa Woisetschläger
- Center for Medical Image Science and Visualization (CMIV), Linköping University, SE-58185, Linköping, Sweden.,Department of Radiology and Department of Health, Medicine and Caring Sciences, Linköping University, SE-58185, Linköping, Sweden
| | - Eva Klintström
- Center for Medical Image Science and Visualization (CMIV), Linköping University, SE-58185, Linköping, Sweden.,Department of Radiology and Department of Health, Medicine and Caring Sciences, Linköping University, SE-58185, Linköping, Sweden
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Aguilar-Arevalo AA, Alves DSM, Biedron S, Boissevain J, Borrego M, Chavez-Estrada M, Chavez A, Conrad JM, Cooper RL, Diaz A, Distel JR, D'Olivo JC, Dunton E, Dutta B, Elliott A, Evans D, Fields D, Greenwood J, Gold M, Gordon J, Guarincerri E, Huang EC, Kamp N, Kelsey C, Knickerbocker K, Lake R, Louis WC, Mahapatra R, Maludze S, Mirabal J, Moreno R, Neog H, deNiverville P, Pandey V, Plata-Salas J, Poulson D, Ray H, Renner E, Schaub TJ, Shaevitz MH, Smith D, Sondheim W, Szelc AM, Taylor C, Thompson WH, Thornton RT, Tripathi M, Van Berg R, Van de Water RG, Verma S, Walker K. First Leptophobic Dark Matter Search from the Coherent-CAPTAIN-Mills Liquid Argon Detector. Phys Rev Lett 2022; 129:021801. [PMID: 35867467 DOI: 10.1103/physrevlett.129.021801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
We report the first results of a search for leptophobic dark matter (DM) from the Coherent-CAPTAIN-Mills (CCM) liquid argon (LAr) detector. An engineering run with 120 photomultiplier tubes (PMTs) and 17.9×10^{20} protons on target (POT) was performed in fall 2019 to study the characteristics of the CCM detector. The operation of this 10-ton detector was strictly light based with a threshold of 50 keV and used coherent elastic scattering off argon nuclei to detect DM. Despite only 1.5 months of accumulated luminosity, contaminated LAr, and nonoptimized shielding, CCM's first engineering run has already achieved sensitivity to previously unexplored parameter space of light dark matter models with a baryonic vector portal. With an expected background of 115 005 events, we observe 115 005+16.5 events which is compatible with background expectations. For a benchmark mediator-to-DM mass ratio of m_{V_{B}}/m_{χ}=2.1, DM masses within the range 9 MeV≲m_{χ}≲50 MeV are excluded at 90% C. L. in the leptophobic model after applying the Feldman-Cousins test statistic. CCM's upgraded run with 200 PMTs, filtered LAr, improved shielding, and 10 times more POT will be able to exclude the remaining thermal relic density parameter space of this model, as well as probe new parameter space of other leptophobic DM models.
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Affiliation(s)
| | - D S M Alves
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S Biedron
- University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - J Boissevain
- Bartoszek Engineering, Aurora, Illinois 60506, USA
| | - M Borrego
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | | | - A Chavez
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J M Conrad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R L Cooper
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - A Diaz
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J R Distel
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J C D'Olivo
- Universidad Nacional Autónoma de México, CDMX 04510, México
| | - E Dunton
- Columbia University, New York, New York 10027, USA
| | - B Dutta
- Texas A&M University, College Station, Texas 77843, USA
| | - A Elliott
- Embry-Riddle Aeronautical University, Prescott, Arizona 86301, USA
| | - D Evans
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D Fields
- University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - J Greenwood
- Embry-Riddle Aeronautical University, Prescott, Arizona 86301, USA
| | - M Gold
- University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - J Gordon
- Embry-Riddle Aeronautical University, Prescott, Arizona 86301, USA
| | - E Guarincerri
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - E C Huang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - N Kamp
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C Kelsey
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - K Knickerbocker
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R Lake
- Embry-Riddle Aeronautical University, Prescott, Arizona 86301, USA
| | - W C Louis
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R Mahapatra
- Texas A&M University, College Station, Texas 77843, USA
| | - S Maludze
- Texas A&M University, College Station, Texas 77843, USA
| | - J Mirabal
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R Moreno
- Embry-Riddle Aeronautical University, Prescott, Arizona 86301, USA
| | - H Neog
- Texas A&M University, College Station, Texas 77843, USA
| | - P deNiverville
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - V Pandey
- University of Florida, Gainesville, Florida 32611, USA
| | - J Plata-Salas
- Universidad Nacional Autónoma de México, CDMX 04510, México
| | - D Poulson
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - H Ray
- University of Florida, Gainesville, Florida 32611, USA
| | - E Renner
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - T J Schaub
- University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - M H Shaevitz
- Columbia University, New York, New York 10027, USA
| | - D Smith
- Embry-Riddle Aeronautical University, Prescott, Arizona 86301, USA
| | - W Sondheim
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A M Szelc
- University of Edinburgh, Edinburgh EH9 3FD, United Kingdom
| | - C Taylor
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - W H Thompson
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R T Thornton
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M Tripathi
- University of Florida, Gainesville, Florida 32611, USA
| | - R Van Berg
- Bartoszek Engineering, Aurora, Illinois 60506, USA
| | - R G Van de Water
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S Verma
- Texas A&M University, College Station, Texas 77843, USA
| | - K Walker
- Embry-Riddle Aeronautical University, Prescott, Arizona 86301, USA
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Sinzinger F, Astaraki M, Smedby Ö, Moreno R. Spherical Convolutional Neural Networks for Survival Rate Prediction in Cancer Patients. Front Oncol 2022; 12:870457. [PMID: 35574400 PMCID: PMC9094614 DOI: 10.3389/fonc.2022.870457] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/21/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Survival Rate Prediction (SRP) is a valuable tool to assist in the clinical diagnosis and treatment planning of lung cancer patients. In recent years, deep learning (DL) based methods have shown great potential in medical image processing in general and SRP in particular. This study proposes a fully-automated method for SRP from computed tomography (CT) images, which combines an automatic segmentation of the tumor and a DL-based method for extracting rotational-invariant features. Methods In the first stage, the tumor is segmented from the CT image of the lungs. Here, we use a deep-learning-based method that entails a variational autoencoder to provide more information to a U-Net segmentation model. Next, the 3D volumetric image of the tumor is projected onto 2D spherical maps. These spherical maps serve as inputs for a spherical convolutional neural network that approximates the log risk for a generalized Cox proportional hazard model. Results The proposed method is compared with 17 baseline methods that combine different feature sets and prediction models using three publicly-available datasets: Lung1 (n=422), Lung3 (n=89), and H&N1 (n=136). We observed comparable C-index scores compared to the best-performing baseline methods in a 5-fold cross-validation on Lung1 (0.59 ± 0.03 vs. 0.62 ± 0.04). In comparison, it slightly outperforms all methods in inter-data set evaluation (0.64 vs. 0.63). The best-performing method from the first experiment reduced its performance to 0.61 and 0.62 for Lung3 and H&N1, respectively. Discussion The experiments suggest that the performance of spherical features is comparable with previous approaches, but they generalize better when applied to unseen datasets. That might imply that orientation-independent shape features are relevant for SRP. The performance of the proposed method was very similar, using manual and automatic segmentation methods. This makes the proposed model useful in cases where expert annotations are not available or difficult to obtain.
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Affiliation(s)
- Fabian Sinzinger
- Division of Biomedical Imaging, Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Mehdi Astaraki
- Division of Biomedical Imaging, Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden.,Karolinska Institutet, Department of Oncology-Pathology, Karolinska Universitetssjukhuset, Stockholm, Sweden
| | - Örjan Smedby
- Division of Biomedical Imaging, Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Rodrigo Moreno
- Division of Biomedical Imaging, Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
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15
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Moratal S, Benavente R, Salvador MD, Peñaranda-Foix FL, Moreno R, Borrell A. Microwave sintering study of strontium-doped lanthanum manganite in a single-mode microwave with electric and magnetic field at 2.45 GHz. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.05.060] [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: 11/01/2022]
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16
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De La Rosa Á, Ruiz G, Castillo E, Moreno R. Probabilistic Assessment of the Dynamic Viscosity of Self-Compacting Steel-Fiber Reinforced Concrete through a Micromechanical Model. Materials 2022; 15:ma15082763. [PMID: 35454455 PMCID: PMC9032889 DOI: 10.3390/ma15082763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/18/2022] [Accepted: 04/07/2022] [Indexed: 11/16/2022]
Abstract
This article develops a probabilistic approach to a micromechanical model to calculate the dynamic viscosity in self-compacting steel-fiber reinforced concrete (SCSFRC), which implies a paradigm shift in the approach of the deterministic models used. It builds on a previous work by the authors in which Bayesian analysis is applied to rheological micromechanical models in cement paste, self-compacting mortar, and self-compacting concrete. As a consequence of the varied characteristics of the particles in these suspensions (in terms of materials, shapes, size distributions, etc.), as well as their random nature, it seems appropriate to study these systems with probabilistic models. The Bayesian analysis, thorough Markov Chain Monte Carlo and Gibbs Sampling methods, allows the conversion of parametric-deterministic models into parametric-probabilistic models, which results in enrichment in engineering and science. The incorporation of steel fibers requires a new term in the model to account for their effect on the dynamic viscosity of SCSFRC, and this new term is also treated here with the Bayesian approach. The paper uses an extensive collection of experimental data to obtain the probability density functions of the parameters for assessing the dynamic viscosity in SCSFRC. The results obtained with these parameters’ distributions are much better than those calculated with the theoretical values of the parameters, which indicates that Bayesian methods are appropriated to respond to questions in complex systems with complex models.
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Affiliation(s)
- Ángel De La Rosa
- ETS de Ingenieros de Caminos, C. y P., Universidad de Castilla-La Mancha, Av. Camilo José Cela s/n, 13071 Ciudad Real, Spain;
- Correspondence:
| | - Gonzalo Ruiz
- ETS de Ingenieros de Caminos, C. y P., Universidad de Castilla-La Mancha, Av. Camilo José Cela s/n, 13071 Ciudad Real, Spain;
| | | | - Rodrigo Moreno
- Instituto de Cerámica y Vidrio (CSIC), C. Kelsen 5, Campus de Cantoblanco, 28049 Madrid, Spain;
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17
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Quintero JI, Herrand MC, Moreno R. Vascularized Bone Grafting for the Treatment of Capitate Avascular Necrosis. J Wrist Surg 2022; 11:181-184. [PMID: 35478948 PMCID: PMC9038304 DOI: 10.1055/s-0041-1726410] [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: 01/01/2021] [Accepted: 02/09/2021] [Indexed: 10/21/2022]
Abstract
Avascular necrosis (AVN) of the capitate bone is a rare condition and it can be related to major trauma or idiopathy. Different treatments are available including soft tissue interposition and intercarpal arthrodesis including lunocapitate, scaphocapitate, four corner, and carpometacarpal fusions. Other surgical options are resection of the proximal pole and revascularization procedures. The main purpose of this article is to present two cases of AVN of the capitate treated with a revascularization procedure using the 4th-5th extensor compartment artery (4th-5th ECA). Two female patients with capitate AVN are reported with an average age of 30.5 years. Both cases were classified as type-I according to Milliez classification. The major complaint in each case was wrist pain that increased during activity. In both cases there was no history of trauma, smoking, diabetes, or hematologic diseases. Both patients had a diminished range of motion, grip, and strength. The definitive diagnosis was made with magnetic resonance imaging. Both patients underwent treatment revascularization of the capitate using a vascularized bone graft based on the 4th-5th ECA. At average follow-up of 12 months, each patient had improved with regards to pain and had increased grip strength. The literature does not describe a specific algorithm treatment for capitate AVN. We recommend revascularization of the capitate using the 4th-5th ECA in type-I Milliez classification in young patients without signs of carpal collapse.
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Affiliation(s)
- Jorge I. Quintero
- Christine M. Kleinert Institute for Hand and Microsurgery, Louisville, Kentucky
| | - Maria C. Herrand
- Christine M. Kleinert Institute for Hand and Microsurgery, Louisville, Kentucky
| | - Rodrigo Moreno
- Christine M. Kleinert Institute for Hand and Microsurgery, Louisville, Kentucky
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18
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Calderón AP, Louvrier J, Planillo A, Araya‐Gamboa D, Arroyo‐Arce S, Barrantes‐Núñez M, Carazo‐Salazar J, Corrales‐Gutiérrez D, Doncaster CP, Foster R, García MJ, Garcia‐Anleu R, Harmsen B, Hernández‐Potosme S, Leonardo R, Trigueros DM, McNab R, Meyer N, Moreno R, Salom‐Pérez R, Sauma Rossi A, Thomson I, Thornton D, Urbina Y, Grimm V, Kramer‐Schadt S. Occupancy models reveal potential of conservation prioritization for Central American jaguars. Anim Conserv 2022. [DOI: 10.1111/acv.12772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- A P Calderón
- Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin Germany
- Department of Ecological Modelling Helmholtz Centre for Environmental Research – UFZ Leipzig Germany
- Plant Ecology and Nature Conservation University of Potsdam Potsdam Germany
| | - J Louvrier
- Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin Germany
- Department of Ecology Technische Universität Berlin Berlin Germany
| | - A Planillo
- Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin Germany
| | | | - S Arroyo‐Arce
- Coastal Jaguar Conservation Santo Domingo Heredia Costa Rica
| | | | | | | | - C P Doncaster
- School of Biological Sciences University of Southampton Southampton UK
| | | | - M J García
- Centro de Estudios Conservacionistas San Carlos University Guatemala Guatemala
| | | | - B Harmsen
- Panthera New York NY USA
- Environmental Research Institute University of Belize Belmopan Belize
| | | | - R Leonardo
- Centro de Estudios Conservacionistas San Carlos University Guatemala Guatemala
| | | | - R McNab
- Wildlife Conservation Society Flores Guatemala
| | - N Meyer
- Fundación Yaguará Panama Clayton Panama
- Conservation Science Research Group The University of Newcastle Callaghan New South Wales Australia
- Chair of Wildlife Ecology and Management Albert‐Ludwigs‐Universität Freiburg Freiburg Germany
| | - R Moreno
- Fundación Yaguará Panama Clayton Panama
- Smithsonian Tropical Research Institute Panamá City Panamá
| | | | | | - I Thomson
- Coastal Jaguar Conservation Santo Domingo Heredia Costa Rica
| | - D Thornton
- School of the Environment Washington State University Pullman WA USA
| | | | - V Grimm
- Department of Ecological Modelling Helmholtz Centre for Environmental Research – UFZ Leipzig Germany
- Plant Ecology and Nature Conservation University of Potsdam Potsdam Germany
| | - S Kramer‐Schadt
- Department of Ecological Dynamics Leibniz Institute for Zoo and Wildlife Research Berlin Germany
- Department of Ecology Technische Universität Berlin Berlin Germany
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Marco A, Moreno R. Scientific contribution of the 13th National Conference and the 21st Symposia of the Spanish Society of Prison Health, held in Alcalá de Henares, Madrid. Rev Esp Sanid Penit 2022; 24:6-8. [PMID: 35411911 PMCID: PMC9017608 DOI: 10.18176/resp.00043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 11/20/2022]
Affiliation(s)
- A Marco
- Centre of Networked Biomedical Research on Epidemiology and Public Health (CIBERESP).Centre of Networked Biomedical Research on Epidemiology and Public Health (CIBERESP)Spain
- Chair of the Science Committee of the 13th National Conference and 21st Symposia of the Spanish Society of Prison Health (SESP).Spanish Society of Prison HealthSpain
- Correspondence: Andrés Marco Mouriño. Programa de Salud Penitenciaria Instituto Catalán de la Salud. Gran Vía de les Corts Catalanes. E-mail:
| | - R Moreno
- Chair of the Organising Committee of the 13th National Conference and 21st Symposia of the Spanish Society of Prison Health.Spanish Society of Prison HealthSpain
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20
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Sinzinger F, van Kerkvoorde J, Pahr DH, Moreno R. Predicting the trabecular bone apparent stiffness tensor with spherical convolutional neural networks. Bone Rep 2022; 16:101179. [PMID: 35309107 PMCID: PMC8927924 DOI: 10.1016/j.bonr.2022.101179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 02/15/2022] [Accepted: 03/03/2022] [Indexed: 12/14/2022] Open
Abstract
The apparent stiffness tensor is relevant for characterizing trabecular bone quality. Previous studies have used morphology-stiffness relationships for estimating the apparent stiffness tensor. In this paper, we propose to train spherical convolutional neural networks (SphCNNs) to estimate this tensor. Information of the edges, trabecular thickness, and spacing are summarized in functions on the unitary sphere used as inputs for the SphCNNs. The concomitant dimensionality reduction makes it possible to train neural networks on relatively small datasets. The predicted tensors were compared to the stiffness tensors computed by using the micro-finite element method (μFE), which was considered as the gold standard, and models based on fourth-order fabric tensors. Combining edges and trabecular thickness yields significant improvements in the accuracy compared to the methods based on fourth-order fabric tensors. From the results, SphCNNs are promising for replacing the more expensive μFE stiffness estimations. Characteristic stiffness tensors are derived from trabecular bone micro-CT samples. Previous approximation methods fall short on heterogeneous data-sets. The gradient, trabecular thickness and spacing are mapped to a spherical domain. Spherical convolutional neural networks are used for the prediction. The prediction error is significantly reduced compared to the state-of-the-art.
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21
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Popotte C, Devic C, Munier M, Moreno R, Rousseau H, Perlongo S, Pilleul F, Paul D. Multicentric comparative study of dose indexes using an “in vivo” optical fiber detection system. Phys Med 2021. [DOI: 10.1016/s1120-1797(22)00272-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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22
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Johnson RK, Trenhaile-Grannemann MD, Moreno R, Ciobanu DC, Miller PS. Effects of restricting energy during the gilt development period on growth and reproduction of lines differing in lean growth rate: Responses in reproductive performance and longevity. J Anim Sci 2021; 100:6444302. [PMID: 34849984 DOI: 10.1093/jas/skab352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/23/2021] [Indexed: 11/12/2022] Open
Abstract
Longevity and reproductive performance are economically important traits in the swine industry that are largely influenced by nutrition and other environmental factors. Reproductive performance and longevity through 4 parities was assessed in gilts of 2 genetic lines developed on ad libitum access to feed or restricted to 75% of ad libitum intake. A total of 661 gilts were used in a 2 x 2 factorial with half of the gilts allocated to an ad libitum diet (AL; n = 330), while the other half were energy restricted by 25% (R; n = 331) from 123 to 235 d of age. All gilts were sired by an industry maternal line. Dams of the gilts were from either a Large White by Landrace industry maternal line or Nebraska Selection Line 45X, producing gilts designated as W x L (n = 355) and L45X (n = 306), respectively. Daily estrus detection began at 140 d of age to obtain age at puberty (AP). Gilts (n = 510) were mated on their second or later estrus, beginning at 240 d of age. Sow weight and backfat were recorded at 110 d of gestation and weaning of each parity. Number of live-born, stillborn, and mummified pigs per litter and piglet birth and weaning weights were recorded through 4 parities. More L45X than W x L and more AL than R gilts reached puberty by 230 d of age (P < 0.01). Dietary treatment did not affect probability to produce parities 1 to 4 or any litter trait analyzed. The L45X females tended to be more likely to produce parities 1 (P < 0.08) and 3 (P < 0.06), while W x L had heavier litters at birth (P < 0.01) and weaning (P = 0.01). Treatment by parity interactions (P < 0.01) existed for weight and backfat prior to farrowing and backfat at weaning, and weight at weaning exhibited a line by treatment by parity interaction (P = 0.04) as R sows had lower weights and backfats in earlier parities, but caught up to AL sows in later parities. A treatment by parity interaction (P < 0.01) was also present for backfat loss from farrowing to weaning as R gilts lost less backfat than AL in parities 1 and 2, but more in parities 3 and 4. No significant differences were detected between lines or treatments for lifetime production traits. The populations of pigs and data presented here provide a framework for a diverse array of further studies. Alternative approaches to restrict energy have been assessed in addition to methods of marker-assisted and genomic selection for improvement of litter size and sow longevity.
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Affiliation(s)
- R K Johnson
- Animal Science Department, University of Nebraska, Lincoln, NE 68583-0908, USA
| | | | - R Moreno
- Animal Science Department, University of Nebraska, Lincoln, NE 68583-0908, USA
| | - D C Ciobanu
- Animal Science Department, University of Nebraska, Lincoln, NE 68583-0908, USA
| | - P S Miller
- Animal Science Department, University of Nebraska, Lincoln, NE 68583-0908, USA
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23
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Muñoz-Almagro N, Vendrell-Calatayud M, Méndez-Albiñana P, Moreno R, Cano MP, Villamiel M. Extraction optimization and structural characterization of pectin from persimmon fruit (Diospyros kaki Thunb. var. Rojo brillante). Carbohydr Polym 2021; 272:118411. [PMID: 34420705 DOI: 10.1016/j.carbpol.2021.118411] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [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: 02/26/2021] [Revised: 06/30/2021] [Accepted: 07/02/2021] [Indexed: 11/17/2022]
Abstract
In this work we have efficiently extracted and characterized pectin from different tissues of astringent (AS) and non-astringent (NAS) persimmon fruits (peel, pulp, whole fruit) for the first time. The highest pectin extraction (≥7.2%) was carried out at 80 °C, 120 min with 1.5% sodium citrate in peel of both AS and NAS persimmon samples. All persimmon pectins showed a molecular weight and galacturonic acid content upper than 328 kDa and 78%, respectively, indicating their suitability as food ingredient. Pectin extracted from AS pulp and peel tissues exhibited an enriched structure in rhamnose and arabinose, whereas the opposite behavior was observed in NAS persimmon whole fruit samples. Remarkably, both pulp tissues (AS and NAS) presented the highest levels of glucose and mannose, non-pectic carbohydrates. In addition, techno-functional assessment (zeta potential, particle size, apparent viscosity, gelation) showed the suitability of the persimmon pectins for a broad range of industrial applications.
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Affiliation(s)
- Nerea Muñoz-Almagro
- Departamento de Química y Funcionalidad de Alimentos, Grupo de Química y Funcionalidad de Carbohidratos y Derivados, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Nicolás Cabrera, 9, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Mario Vendrell-Calatayud
- Departamento de Química y Funcionalidad de Alimentos, Grupo de Química y Funcionalidad de Carbohidratos y Derivados, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Nicolás Cabrera, 9, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain; Departamento de Biotecnología y Microbiología de Alimentos, Grupo de Fitoquímica y Funcionalidad de Productos Vegetales, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Nicolás Cabrera, 9, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Pablo Méndez-Albiñana
- Departamento de Química y Funcionalidad de Alimentos, Grupo de Química y Funcionalidad de Carbohidratos y Derivados, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Nicolás Cabrera, 9, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Rodrigo Moreno
- Instituto de Cerámica y Vidrio (ICV), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - M Pilar Cano
- Departamento de Biotecnología y Microbiología de Alimentos, Grupo de Fitoquímica y Funcionalidad de Productos Vegetales, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Nicolás Cabrera, 9, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Mar Villamiel
- Departamento de Química y Funcionalidad de Alimentos, Grupo de Química y Funcionalidad de Carbohidratos y Derivados, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Nicolás Cabrera, 9, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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Benavente R, Salvador MD, Bloem C, Gutiérrez-González CF, Alcázar C, Moreno R, Borrell A. Tribological behavior of TZ4YS-MoSi2 composites obtained by Spark Plasma Sintering. Ann Ital Chir 2021. [DOI: 10.1016/j.jeurceramsoc.2021.07.053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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26
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Hinault P, Hinault P, Puiseux T, Sewonu A, Gardin I, Gouel P, Souchay H, Moreno R, Gensanne D. PO-1859 Proposal of an imaging PTV in stereotactic planning to take into account MRI geometric distortions. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08310-9] [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: 10/20/2022]
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27
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Muñoz-Almagro N, Ruiz-Torralba A, Méndez-Albiñana P, Guerra-Hernández E, García-Villanova B, Moreno R, Villamiel M, Montilla A. Berry fruits as source of pectin: Conventional and non-conventional extraction techniques. Int J Biol Macromol 2021; 186:962-974. [PMID: 34237373 DOI: 10.1016/j.ijbiomac.2021.07.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/29/2021] [Accepted: 07/02/2021] [Indexed: 11/19/2022]
Abstract
Three non-conventional extraction techniques (enzyme-assisted with cellulase, citric acid ultrasound-assisted and enzyme-ultrasound-assisted treatment) and conventional citric acid extraction were applied to obtain pectin from raspberry, blueberry, strawberry and redcurrant, and were compared in terms of extraction yields and physicochemical properties of the extracted pectins. Except for pectin from raspberry, conventional citric acid extraction led to the highest extraction yield (~8%) and, for the same berries, the lowest pectin recovery was found for the extraction with cellulase (~4%). Regarding the structural characteristics of pectins, enzymatically extracted pectins from redcurrant and strawberry exhibited the highest levels of galacturonic acid (≥73%) whereas, in general, this monosaccharide was found from 51 to 69% in the rest of samples. Although, ultrasound-assisted extraction did not improve pectin yield, it minimized the levels of "non-pectic" components leading to the obtainment of purer pectin. The different monomeric composition and the wide range of molecular weight of the obtained pectins pointed out their usefulness in different potential food applications (e.g., thickening, gelling ingredients) and biological activities. This has been evidenced by the differences found in their physicochemical and techno-functional characteristics. Finally, it can be considered that the berries here studied are efficient sources of pectin.
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Affiliation(s)
- Nerea Muñoz-Almagro
- Grupo de Química y Funcionalidad de Carbohidratos y Derivados, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Nicolás Cabrera, 9. Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Arancha Ruiz-Torralba
- Departamento de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Granada, Granada, Spain
| | - Pablo Méndez-Albiñana
- Grupo de Química y Funcionalidad de Carbohidratos y Derivados, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Nicolás Cabrera, 9. Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Eduardo Guerra-Hernández
- Departamento de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Granada, Granada, Spain
| | - Belén García-Villanova
- Departamento de Nutrición y Bromatología, Facultad de Farmacia, Universidad de Granada, Granada, Spain
| | - Rodrigo Moreno
- Instituto de Cerámica y Vidrio (ICV), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Mar Villamiel
- Grupo de Química y Funcionalidad de Carbohidratos y Derivados, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Nicolás Cabrera, 9. Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain.
| | - Antonia Montilla
- Grupo de Química y Funcionalidad de Carbohidratos y Derivados, Instituto de Investigación en Ciencias de la Alimentación (CIAL) (CSIC-UAM), Nicolás Cabrera, 9. Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain
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Abstract
This work presents a platform for evolution of morphology in full cycle reconfigurable hardware: The EMERGE (Easy Modular Embodied Robot Generator) modular robot platform. Three parts necessary to implement a full cycle process, i.e., assembling the modules in morphologies, testing the morphologies, disassembling modules and repeating, are described as a previous step to testing a fully autonomous system: the mechanical design of the EMERGE module, extensive tests of the modules by first assembling them manually, and automatic assembly and disassembly tests. EMERGE modules are designed to be easy and fast to build, one module is built in half an hour and is constructed from off-the-shelf and 3D printed parts. Thanks to magnetic connectors, modules are quickly attached and detached to assemble and reconfigure robot morphologies. To test the performance of real EMERGE modules, 30 different morphologies are evolved in simulation, transferred to reality, and tested 10 times. Manual assembly of these morphologies is aided by a visual guiding tool that uses AprilTag markers to check the real modules positions in the morphology against their simulated counterparts and provides a color feedback. Assembly time takes under 5 min for robots with fewer than 10 modules and increases linearly with the number of modules in the morphology. Tests show that real EMERGE morphologies can reproduce the performance of their simulated counterparts, considering the reality gap. Results also show that magnetic connectors allow modules to disconnect in case of being subjected to high external torques that could damage them otherwise. Module tracking combined with their easy assembly and disassembly feature enable EMERGE modules to be also reconfigured using an external robotic manipulator. Experiments demonstrate that it is possible to attach and detach modules from a morphology, as well as release the module from the manipulator using a passive magnetic gripper. This shows that running a completely autonomous, evolution of morphology in full cycle reconfigurable hardware of different topologies for robots is possible and on the verge of being realized. We discuss EMERGE features and the trade-off between reusability and morphological variability among different approaches to physically implement evolved robots.
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Affiliation(s)
- Rodrigo Moreno
- REAL Lab, IT University of Copenhagen, Copenhagen, Denmark
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Laguna J, Brasó-Maristany F, Pascual T, Rodriguez Hernandez A, Chic N, Schettini F, Sanfeliu Torres E, Gonzalez-Farre B, Martínez D, Galván P, Díez-Guardia V, Adamo B, Vidal M, Guillen Sacoto M, Moreno R, Prat A, Muñoz M, Martínez-Sáez O. 109P Subsequent therapies after progressing to CDK4/6 inhibition (CDK4/6i) in hormone receptor positive/HER2 negative (HR+/HER2-) advanced breast cancer (ABC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.03.123] [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: 11/25/2022] Open
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Bauml J, Mick R, Mccoach C, Weiss J, Marrone K, Nieva J, Villaruz L, Levy B, Moreno R, Murkherji R, Sun F, Schwartzman W, Shaverdashvili K, Wang X, Shah M, Woodley J, Miller N, Succe C, Ullah T, Lovly C, Doebele R, Iams W, Horn L, Dowell J, Liu G, Leighl N, Patil T, Liu S, Velcheti V, Aisner D, Camidge R. FP14.06 Multicenter Analysis of Mechanisms of Resistance to Osimertinib (O) in EGFR Mutated NSCLC: An ATOMIC Registry Study. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.149] [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: 10/21/2022]
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Tanzi L, Vezzetti E, Moreno R, Aprato A, Audisio A, Massè A. Hierarchical fracture classification of proximal femur X-Ray images using a multistage Deep Learning approach. Eur J Radiol 2020; 133:109373. [DOI: 10.1016/j.ejrad.2020.109373] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 09/14/2020] [Accepted: 10/19/2020] [Indexed: 01/10/2023]
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Guha I, Klintström B, Klintström E, Zhang X, Smedby Ö, Moreno R, Saha PK. A comparative study of trabecular bone micro-structural measurements using different CT modalities. Phys Med Biol 2020; 65:10.1088/1361-6560/abc367. [PMID: 33086213 PMCID: PMC8058110 DOI: 10.1088/1361-6560/abc367] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 10/21/2020] [Indexed: 01/23/2023]
Abstract
Osteoporosis, characterized by reduced bone mineral density and micro-architectural degeneration, significantly enhances fracture-risk. There are several viable methods for trabecular bone micro-imaging, which widely vary in terms of technology, reconstruction principle, spatial resolution, and acquisition time. We have performed an excised cadaveric bone specimen study to evaluate different computed tomography (CT)-imaging modalities for trabecular bone micro-structural analysis. Excised cadaveric bone specimens from the distal radius were scanned using micro-CT and fourin vivoCT imaging modalities: high-resolution peripheral quantitative computed tomography (HR-pQCT), dental cone beam CT (CBCT), whole-body multi-row detector CT (MDCT), and extremity CBCT. A new algorithm was developed to optimize soft thresholding parameters for individualin vivoCT modalities for computing quantitative bone volume fraction maps. Finally, agreement of trabecular bone micro-structural measures, derived from differentin vivoCT imaging, with reference measures from micro-CT imaging was examined. Observed values of most trabecular measures, including trabecular bone volume, network area, transverse and plate-rod micro-structure, thickness, and spacing, forin vivoCT modalities were higher than their micro-CT-based reference values. In general, HR-pQCT-based trabecular bone measures were closer to their reference values as compared to otherin vivoCT modalities. Despite large differences in observed values of measures among modalities, high linear correlation (rε [0.94 0.99]) was found between micro-CT andin vivoCT-derived measures of trabecular bone volume, transverse and plate micro-structural volume, and network area. All HR-pQCT-derived trabecular measures, except the erosion index, showed high correlation (rε [0.91 0.99]). The plate-width measure showed a higher correlation (rε [0.72 0.91]) amongin vivoand micro-CT modalities than its counterpart binary plate-rod characterization-based measure erosion index (rε [0.65 0.81]). Although a strong correlation was observed between micro-structural measures fromin vivoand micro-CT imaging, large shifts in their values forin vivomodalities warrant proper scanner calibration prior to adopting in multi-site and longitudinal studies.
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Affiliation(s)
- Indranil Guha
- Department of Electrical and Computer Engineering, College of Engineering, University of Iowa, Iowa City, IA, United States of America
| | - Benjamin Klintström
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Eva Klintström
- Department of Medical and Health Sciences and Center for Medical Image Science and Visualization (CMIV), Linköping University, Linköping, Sweden
| | - Xiaoliu Zhang
- Department of Electrical and Computer Engineering, College of Engineering, University of Iowa, Iowa City, IA, United States of America
| | - Örjan Smedby
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Rodrigo Moreno
- Department of Biomedical Engineering and Health Systems, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Punam K Saha
- Department of Electrical and Computer Engineering, College of Engineering, University of Iowa, Iowa City, IA, United States of America
- Department of Radiology, Carver College of Medicine, University of Iowa, Iowa City, IA, United States of America
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33
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Sanjuan E, Pancorbo O, Santana K, Miñarro O, Sala V, Muchada M, Boned S, Juega JM, Pagola J, García-Tornel Á, Requena M, Rodríguez-Villatoro N, Rodríguez-Luna D, Deck M, Ribo M, Molina CA, Meler P, Romero V, Dalmases G, Rodríguez-Samaniego MT, Calleja L, Gutierrez T, Peña L, Gallego JC, Lorenzo E, Gonzalez Y, Moreno R, Rubiera M. Management of acute stroke. Specific nursing care and treatments in the stroke unit. Neurologia 2020; 38:S0213-4853(20)30291-7. [PMID: 33153769 DOI: 10.1016/j.nrl.2020.07.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/23/2020] [Accepted: 07/29/2020] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE This study provides a series of updated, evidence-based recommendations for the management of acute stroke. We aim to lay a foundation for the development of individual centres' internal protocols, serving as a reference for nursing care. METHODS We review the available evidence on acute stroke care. The most recent national and international guidelines were consulted. Levels of evidence and degrees of recommendation are based on the Oxford Centre for Evidence-Based Medicine classification. RESULTS The study describes prehospital acute stroke care, the operation of the code stroke protocol, care provided by the stroke team upon the patient's arrival at hospital, reperfusion treatments and their limitations, admission to the stroke unit, nursing care in the stroke unit, and discharge from hospital. CONCLUSIONS These guidelines provide general, evidence-based recommendations to guide professionals who care for patients with acute stroke. However, limited data are available on some aspects, showing the need for continued research on acute stroke management.
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Affiliation(s)
- E Sanjuan
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España.
| | - O Pancorbo
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España; Departament de Medicina, Universitat Autònoma de Barcelona, Barcelona, España
| | - K Santana
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - O Miñarro
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - V Sala
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - M Muchada
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - S Boned
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - J M Juega
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - J Pagola
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - Á García-Tornel
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - M Requena
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - N Rodríguez-Villatoro
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - D Rodríguez-Luna
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - M Deck
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - M Ribo
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - C A Molina
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - P Meler
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - V Romero
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - G Dalmases
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - M T Rodríguez-Samaniego
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - L Calleja
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - T Gutierrez
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - L Peña
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - J C Gallego
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - E Lorenzo
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - Y Gonzalez
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - R Moreno
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - M Rubiera
- Unidad de Ictus, Servicio de Neurología, Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
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Jimenez-Quevedo P, Urbano Carrillo C, Vaquerizo B, Arzamendi D, Artaiz M, Perez-Moreiras I, Moreu J, Diaz J, Blanco-Mata R, Albarran A, Cruz-Gonzalez I, Baz J, Ruiz-Quevedo V, Nombela-Franco L, Moreno R. Early and midterm outcomes after transaxillar versus transfemoral TAVI. data from the spanish TAVI registry. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Transaxillary access (TAx) has emerged as a less invasive alternative access when transfemoral access (TF) is not possible in patients undergoing TAVI. The primary endpoint of this study was to compare total in-hospital and 30-day mortality of patients included in the Spanish TAVI registry that were treated by TAx versus TF access.
Methods
All patients included in the Spanish TAVI registry who were treated by TAx or TF access were analyzed. In-hospital and 30-days outcomes were assessed using the Valve Academic Research Consortium definitions. An analyses by propensity score matching and multilevel logistic regression was performed for comparing both groups.
Results
A total of 6603 patients were included, of whom 191 (2.9%) were treated by TAx and 6412 were treated with TF access. After the adjustment, the device success was similar between both groups (94%, TAx vs 95%, TF p=0.95) as well as the rate of vascular complications (11.9% Tax vs 11.9 TF; p=0.78), bleeding (7.7% TAx vs. 7.9% TF; p=0.62) and stroke (4.2% TAx vs. 2.0 TF; p=0.09). However, in-hospital and 30-day mortality was significantly higher in TAx access group versus TF 2.19 (1.13–4.26): p=0.02 and 2.11 (1.08–4, 13); P=0.02, respectively. Similarly, the rate of acute myocardial infarction 5.05 (1.94–13.1); p=0.001, renal complications 2.07 (1.19–3.60; p =) 0.01 and pacemaker implantation 1.56 (1.01–2.40); p=0.04 was higher in the TAx group versus TF.
Conclusions
Transaxillary access compared to transfemoral access is associated with an increase in total in-hospital and 30-day mortality, as a result TAx access should be considered only in those cases in which TF is not possible
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | | | | | - D Arzamendi
- Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - M Artaiz
- University Clinic of Navarra, Navarra, Spain
| | | | - J Moreu
- Hospital Virgen de la Salud, Toledo, Spain
| | - J Diaz
- Hospital Juan Ramon Jimenez, Huelva, Spain
| | | | - A Albarran
- University Hospital 12 de Octubre, Madrid, Spain
| | - I Cruz-Gonzalez
- Clinical Universitary Hospital of Salamanca, Salamanca, Spain
| | - J.A Baz
- Hospital Universitario Alvaro Cunqueiro, Vigo, Spain
| | | | | | - R Moreno
- University Hospital La Paz, Madrid, Spain
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Gao C, Kogame N, Smits P, Tonino P, Moreno R, Choudhury A, Hofma S, Petrov I, Cequier A, Colombo A, Onuma Y, Kaul U, Zaman A, De Winter R, Serruys P. A prospective multicentre randomized all-comers trial to assess the safety and effectiveness of the ultra-thin-strut sirolimus-eluting coronary stent Supraflex: 2-year results of the TALENT trial. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background and purpose
Supraflex is a sirolimus-eluting stent with a biodegradable polymeric coating and 60um ultra-thin struts. In the TALENT study, we found the Supraflex stent was non-inferior to the Xience stent for a device-oriented composite endpoint (DOCE, defined as cardiac death, target-vessel myocardial infarction, or clinically indicated target lesion revascularisation) at 12 months in an all-comer population. Additionally, per-protocol analysis showed a significantly lower clinically indicated target lesion revascularisation (CI-TLR) in the Supraflex group than in the Xience group. We now present the 2-year follow-up results.
Methods
The TALENT study was a prospective, randomised, single-blind, multicentre study across 23 centres in Europe. Eligible participants underwent percutaneous coronary intervention in an all-comers fashion in vessels of 2.25–4.5 mm. Patients were randomized (1:1) to implantation of either Supraflex or Xience (NCT02870140).
Results
Between October 21, 2016 and July 3, 2017, 720 patients with 1046 lesions were randomly assigned to Supraflex, and 715 patients with 1030 lesions to Xience. At 24 months, DOCE had occurred in 49 patients (6.9%) in the Supraflex group and in 56 patients (7.9%) in the Xience group (absolute difference −1.0% [95% CI: −3.7 to 1.7], Plog-rank=0.491). Per-protocol analysis at 24 months showed CI-TLR occurred in 21 and 30 patients in the Supraflex and Xience, respectively (3.3% versus 4.5%, absolute difference −1.2%, [95% CI: −3.3 to 0.9], Plog-rank=0.267).
Conclusion
In an all-comer population, at 2-year follow-up, the use of Supraflex stent was at least as safe and efficacious as Xience stent. However, the significantly lower rate of CI-TLR shown in patients treated with Supraflex at 1-year was no longer retained in the 2-year results. Whether theoretical advantage of ultra-thin strut drug eluting stents Supraflex can translate into clinical benefit or not will be further elucidated through a total of 3 years of follow-up.
Funding Acknowledgement
Type of funding source: Private company. Main funding source(s): SMT
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Affiliation(s)
- C Gao
- Xijing Hospital of the Fourth Military Medical University, Xi'an, China
| | - N Kogame
- Amsterdam UMC, Amsterdam, Netherlands (The)
| | - P Smits
- Maasstad Hospital, Rotterdam, Netherlands (The)
| | - P Tonino
- Catharina Hospital, Eindhoven, Netherlands (The)
| | - R Moreno
- University Hospital La Paz, Madrid, Spain
| | - A Choudhury
- University Hospital of Wales, Cardiff, United Kingdom
| | - S Hofma
- Medical Center Leeuwarden, Leeuwarden, Netherlands (The)
| | - I Petrov
- Acibadem City Clinic Cardiovascular Center University Hospital, Sofia, Bulgaria
| | - A Cequier
- University Hospital Bellvitge, Barcelona, Spain
| | - A Colombo
- San Raffaele Scientific Institute, Milan, Italy
| | - Y Onuma
- National University of Ireland, Galway, Ireland
| | - U Kaul
- Batra Hospital and Medical Research Centre, New Delhi, India
| | - A Zaman
- University of Newcastle, Newcastle, Australia
| | | | - P.W Serruys
- National University of Ireland, Galway, Ireland
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Tringale K, Moreno R, Mellinghoff I, Thomas T, Bahtia A, Bale T, Young R, Beal K. MR FLAIR Volumetric Biomarkers Of Disease Progression And Survival In Patients With Glioma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.053] [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: 10/23/2022]
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Valdivielso-Ramos M, Martin-Santiago A, Azaña JM, Hernández-Nuñez A, Vera A, Perez B, Tercedor J, Feito M, Vicente A, Prat C, Lopez-Gutierrez JC, Garnacho G, Baselga E, Roe E, Palencia S, Cordero P, Moreno R, Agudo A, de la Cueva P, Torrelo A. Capillary malformation-arteriovenous malformation syndrome: a multicentre study. Clin Exp Dermatol 2020; 46:300-305. [PMID: 32840927 DOI: 10.1111/ced.14428] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/10/2020] [Accepted: 08/19/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Capillary malformation-arteriovenous malformation (CM-AVM) syndrome is a rare syndrome with characteristic skin lesions that are associated with fast-flow vascular malformations (FFVMs) in one-third of patients. Few case series have been described, and none in Spain. AIM To identify the prevalence of dermatological parameters, FFVMs and associated features in a large series of patients with CM-AVM. METHODS We conducted an observational study of patients with CM-AVM syndrome diagnosed in 15 Spanish hospitals over 3 years. The main clinical, radiological, genetic findings and associated diseases were analysed. RESULTS In total, 64 patients were assessed. In 26.5% of cases, the diagnosis was incidental. In 75% of patients, there was one significantly larger macule, which we termed the 'herald patch'. FFVMs were detected in 34% of the patients, with 30% located on the skin, 7.8% in the brain and in 1.5% in the spine. There was a positive family history in 65% of the 64 patients. Genetic analysis was performed for RASA1 mutations in 57 patients, of whom 42 (73%) had a positive result. All 4 patients tested for EPHB4 mutations had a positive result. No tumour lesions were detected in the series, except for five infantile haemangiomas. CONCLUSIONS Our data on clinical lesions, associated FFVM, family history and genetics are similar to those previously published in the literature. An extensive data analysis failed to demonstrate any statistically significant association between the presence of an FFVM and any clinical, familial or genetic parameter that could predict its onset, although a link between the presence of a herald patch on the midline face and the presence of a brain FFVM was observed. We did not detect any genotype-phenotype correlation.
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Affiliation(s)
| | | | - J M Azaña
- Department of Dermatology, Hospital Albacete, Albacete, Spain
| | | | - A Vera
- Department of Dermatology, Hospital Materno-Infantil, Málaga, Spain
| | - B Perez
- Department of Dermatology, Hospital Ramón y Cajal, Madrid, Spain
| | - J Tercedor
- Department of Dermatology, Hospital Virgen de las Nieves, Granada, Spain
| | - M Feito
- Departments of, Department of, Dermatology, Hospital La Paz, Madrid, Spain
| | - A Vicente
- Department of Dermatology, Hospital San Joan de Deu, Barcelona, Spain
| | - C Prat
- Department of Dermatology, Hospital San Joan de Deu, Barcelona, Spain
| | | | - G Garnacho
- Department of Dermatology, Hospital Reina Sofia, Córdoba, Spain
| | - E Baselga
- Department of Dermatology, Hospital San Pau, Barcelona, Spain
| | - E Roe
- Department of Dermatology, Hospital San Pau, Barcelona, Spain
| | - S Palencia
- Department of Dermatology, Hospital Doce de Octubre, Madrid, Spain
| | - P Cordero
- Department of Dermatology, Hospital Universitario de Valencia, Valencia, Spain
| | - R Moreno
- Department of Dermatology, Hospital del Henares, Madrid, Spain
| | - A Agudo
- Department of Dermatology, Hospital Can Misses, Ibiza, Spain
| | - P de la Cueva
- Department of Dermatology, Hospital Infanta Leonor, Madrid, Spain
| | - A Torrelo
- Department of Dermatology, Hospital Niño Jesús, Madrid, Spain
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Hernandez AR, LaHoz S, Laia F, Puga TG, Moreno R, Esposito F, Oliveres H, Rodriguez SA, Sauri T, Cuatrecasas M, Jares P, Pedrosa L, Pineda E, Castells A, Prat A, Camps J, Maurel J. 476P Mutational profiling allows the stratification of metastatic colorectal cancer patients with poor prognosis. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.587] [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: 10/23/2022] Open
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Ojalvo C, Moreno R, Guiberteau F, Ortiz AL. Processing of orthotropic and isotropic superhard B4C composites reinforced with reduced graphene oxide. Ann Ital Chir 2020. [DOI: 10.1016/j.jeurceramsoc.2020.02.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Quintero JI, Childs D, Moreno R. The medial femoral condyle free flap: An excellent option for difficult cases: case series. SAGE Open Med Case Rep 2020; 8:2050313X20933763. [PMID: 32647579 PMCID: PMC7325544 DOI: 10.1177/2050313x20933763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/29/2019] [Accepted: 05/20/2020] [Indexed: 11/17/2022] Open
Abstract
The use of the medial femoral condyle free flap is a versatile option for the treatment of upper extremity non unions and reconstructive procedures associated with bone loss or osteonecrosis. The benefit of this type of flap is the viability of the bone which favors primary ossification and increases bone density. Vascularized free bone flaps are especially useful for the treatment of recalcitrant nonunions, or nonunions that have failed three or more treatments to obtain consolidation. We present a case series of three patients treated with medial femoral condyle free flap for reconstruction of the upper extremity of different etiologies at the level of the distal humerus, distal radius and distal phalanx of the thumb.
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Affiliation(s)
- Jorge I Quintero
- Christine M. Kleinert Institute for Hand and Microsurgery, Louisville, KY, USA.,Division of Hand Surgery, Department of Surgery, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Dylan Childs
- Christine M. Kleinert Institute for Hand and Microsurgery, Louisville, KY, USA.,Division of Hand Surgery, Department of Surgery, School of Medicine, University of Louisville, Louisville, KY, USA
| | - Rodrigo Moreno
- Christine M. Kleinert Institute for Hand and Microsurgery, Louisville, KY, USA.,Division of Hand Surgery, Department of Surgery, School of Medicine, University of Louisville, Louisville, KY, USA
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Valdivielso-Ramos M, Torrelo A, Martin-Santiago A, Hernández-Nuñez A, Azaña JM, Campos M, Berenguer B, Garnacho G, Moreno R, Colmenero I. Histopathological hallmarks of cutaneous lesions of capillary malformation-arteriovenous malformation syndrome. J Eur Acad Dermatol Venereol 2020; 34:2428-2435. [PMID: 32124491 DOI: 10.1111/jdv.16326] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 02/06/2020] [Indexed: 01/15/2023]
Abstract
IMPORTANCE Capillary malformation-arteriovenous malformation (CM-AVM) syndrome is a recently described syndrome with distinctive cutaneous lesions. Very little is known about the histopathology of these lesions. OBJECTIVE The purpose of the study was to evaluate the histopathological characteristics of the pink macules of the CM-AVM syndrome and to investigate if these pink macules could be classified as capillary malformations or arteriovenous malformations based on their histopathological features. DESIGN-SETTINGS-PARTICIPANTS We conducted a retrospective multicenter study involving eight hospitals in Spain. Fifteen biopsies from pink macules of the CM-AVM syndrome were analysed and compared with five biopsies of diverse capillary malformations and three stage I arteriovenous malformations. RESULTS Pink macules' biopsies of the CM-AVM syndrome showed similar features including a high vascular density encompassing capillaries and numerous thick-walled arterioles mainly located in the superficial dermis, a predominance of elongated over round vessels, scarce or absent erythrocytes within the lumina and discrete perivascular inflammation. CMs were characterized by an increased number of capillary-type vessels mostly rounded and located in the upper dermis. AVMs were composed by highly increased numbers of vessels with a branching pattern involving the full thickness of the dermis, without erythrocytes within the lumina. Wilms tumour 1 protein was positive in the endothelial cells both in pink macules of the CM-AVM and in arteriovenous malformations. CONCLUSIONS AND RELEVANCE Pink macules of the CM-AVM syndrome seem to be different from capillary malformations. Our results suggest that histologically and immunohistochemically they are closer to incipient arteriovenous malformations than to capillary malformations. A deepened knowledge about the nature of these skin lesions will contribute to the better understanding of capillary malformation-arteriovenous malformation syndrome, and will open the possibility of new and more specific treatments in the future.
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Affiliation(s)
| | - A Torrelo
- Dermatology Department, Hospital Niño Jesus, Madrid, Spain
| | | | | | - J M Azaña
- Dermatology Department, Hospital Albacete, Albacete, Spain
| | - M Campos
- Dermatology Department, Hospital Gregorio Marañón, Madrid, Spain
| | - B Berenguer
- Plastic Surgery Department, Hospital Gregorio Marañón, Madrid, Spain
| | - G Garnacho
- Dermatology Department, Hospital Reina Sofia, Córdoba, Spain
| | - R Moreno
- Dermatology Department, Hospital del Henares, Madrid, Spain
| | - I Colmenero
- Pathology Department, Hospital Niño Jesus, Madrid, Spain
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Martínez-Sáez O, Pascual T, Brasó-Maristany F, Chic N, González-Farré B, Sanfeliu E, Rodríguez A, Martínez D, Galván P, Rodriguez Hernandez A, Schettini F, Conte B, Vidal M, Adamo B, Muñoz M, Moreno R, Ciruelos E, Faull I, Odegaard J, Prat A. 5P Circulating tumour DNA (ctDNA) dynamics using a standardized multi-gene panel in advanced breast cancer patients (pts) treated with CDK4/6 inhibitors (CDK4/6i). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.03.141] [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: 11/30/2022] Open
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Abstract
Immigration is one well known but complex stressor. When we analyze its consequences, we discover the loss of social or family support, the need to afford a new unknown and many times hostile perceived environment, or languages/communications problems. Greek myths have been used as a way to explain how men afford that kind of events/monsters. However as cultural productions, myths grow and change trying to reflex the culture, society and time when they are used. Identity has been a main question for many disciplines, psychiatry has wondered about its construction but society has too, and sometimes last explanations are even better than clinical ones. We would like to discuss the inmigration phenomena using anthropology tools, which previously have nourish other psychiatric disciplines as systemic therapy. If we want to be able to treat immigrants, we have not only to fulfill their physical needs or treat their mental symptoms but to look every travel as a risk one, in which as Ulysses they are at risk of losing what they are, their identity. Identity is described in old Greece as the life lived with others, but not any other person, just those who know us and may accept our own images. In the past, the city, our born place, as a social support was what made us humans. Ulysses, out of Ithaca, found monsters, those who weren’t humans, because they didn’t live in his Greek society. As the new Ulysses, the immigrant maybe should be first helped to construct a new identity, which makes monsters disappear.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Elizondo-Riojas G, Falcon M, Trevino M, Marrufo R, Perez C, Nunez E, Steele J, Kirk I, Moreno R, Cooper A, Sheppard A, Dria S, Jay T, Eggers M. 3:36 PM Abstract No. 277 First-in-human evaluation of an absorbable vena cava filter for the prevention of pulmonary embolism. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Serruys PWJC, Walsh S, Sabate M, Davies J, Lesiak M, Moreno R, Cruz-Gonzalez I, West N, Piek J, Stables R, Van Mieghem NM, Farooq V, Escaned J, Banning A, Onuma Y. 278Clinical outcomes of state-of-the-art percutaneous coronary revascularization in patients with three-vessel disease: 3-year follow-up of the SYNTAX II study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The clinical implication of state-of-art PCI at long term follow-up in patients with three vessel disease is undetermined.
Purpose
The purpose of the study was to investigate whether the favourable outcomes of state-of-the-art PCI in the SYNTAX-II trial, demonstrated up to 2 years, are maintained at 3-year follow-up.
Methods
The SYNTAX-II study was a multicentre, single arm study that investigated the impact of a state-of-art PCI strategy on clinical outcomes in patients with de novo three vessel coronary artery disease, without left main disease. State-of-art PCI includes: heart team decision-making utilizing the SYNTAX score II, hybrid iFR-FFR decision-making strategy, intravascular ultrasound guided stent implantation, contemporary chronic total occlusion revascularization techniques and guideline-directed medical therapy. The primary endpoint is major adverse cardiac and cerebrovascular events (MACCE – a composite of all-cause death, any stroke, myocardial infarction, or revascularization) at 3 years. Clinical outcomes in SYNTAX-II were compared to the predefined PCI (SYNTAX-I PCI) and coronary artery bypass graft (SYNTAX-I CABG) cohorts from the landmark SYNTAX Trial (SYNTAX-I), selected on the basis of equipoise for long-term (4-year) mortality utilising the SYNTAX Score II.
Results
Between February 2014 and November 2015, 454 patients out of 708 screened patients were enrolled in SYNTAX-II. In SYNTAX-I, 643 (58.8%) patients with 3VD without left main disease had an equipoise recommendation for CABG or PCI based on the SYNTAX Score II and were used as the comparator. At 2 years, MACCE rate in SYNTAX-II was significantly lower compared to SYNTAX-I PCI (13.2% vs. 21.9%, p=0.001). Furthermore, similar two-year outcomes for MACCE were evident between SYNTAX II-PCI and SYNTAX-I CABG (13.2 vs. 15.1%, p=0.42). Three-year results will be presented at ESC2019.
Conclusions
Three-year results of his study may offer an attractive option of revascularization strategy in predefined patients with de novo 3VD (SYNTAX Score II inclusion) even if the patients have moderate to severe anatomical complexity (anatomic SYNTAX score >22).
Acknowledgement/Funding
European Cardiovascular Research Institute (ECRI) with unrestricted research grants from Volcano and Boston Scientific
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Affiliation(s)
- P W J C Serruys
- Imperial College London, Department of Cardiology, London, United Kingdom
| | - S Walsh
- Belfast Health and Social Care Trust, Department of Cardiology, Belfast, United Kingdom
| | - M Sabate
- Institute of Biomedical Research August Pi Sunyer (IDIBAPS), Barcelona, Spain
| | - J Davies
- Imperial College London, London, United Kingdom
| | - M Lesiak
- Poznan University of Medical Sciences, Poznan, Poland
| | - R Moreno
- University Hospital La Paz, Madrid, Spain
| | | | - N West
- Royal Papworth Hospital NHS Foundation Trust, Cambridge, United Kingdom
| | - J Piek
- Academic Medical Center of Amsterdam, Amsterdam, Netherlands (The)
| | - R Stables
- Liverpool Heart and Chest Hospital, Liverpool, United Kingdom
| | | | - V Farooq
- Newcastle upon Tyne Hospitals NHS foundation trust, Newcastle upon Tyne, United Kingdom
| | - J Escaned
- Hospital Clinic San Carlos, Madrid, Spain
| | - A Banning
- John Radcliffe Hospital, Oxford, United Kingdom
| | - Y Onuma
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
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Garcia-Carbonero R, Gil Martín M, Alvarez Gallego R, Macarulla Mercade T, Riesco Martinez M, Guillen-Ponce C, Vidal N, Real F, Moreno R, Maliandi V, Mato-Berciano A, Bazan-Peregrino M, Capella G, Alemany R, Blasi E, Blasco C, Cascallo M, Salazar R. Systemic administration of the hyaluronidase-expressing oncolytic adenovirus VCN-01 in patients with advanced or metastatic pancreatic cancer: First-in-human clinical trial. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sarceda JJ, Bolufer S, Mongil R, De Castro PL, Moreno R, Peñalver J, Embún R, Pac J, Algar F, Gámez P, Jiménez M, Sales G, Pereira E, Massuti B, Provencio M, Hernando-Trancho F. MA08.11 SLCG SCAT Trial: Surgical Audit to Lymph Node Assessment Based on IASLC Recommendations. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.564] [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: 10/25/2022]
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Hidalgo M, Bazan-Peregrino M, Laquente B, Gallego RA, Mato-Berciano A, Giménez-Alejandre M, Maliandi V, Martinez MCR, Moreno R, Morell M, Perez-Carreras M, Gornals J, Prados S, Capella G, Alemany R, Salazar R, Blasi E, Blasco C, Cascallo M, Garcia-Carbonero R. Proof of concept clinical study by US-guided intratumor injection of VCN-01, an oncolytic adenovirus expressing hyaluronidase in patients with pancreatic cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz244.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
50
|
Venet M, Santa-Rosa W, M’Peko JC, Amorín H, Algueró M, Moreno R. Controlling colloidal processing of (K,Na)NbO3-based materials in aqueous medium. Ann Ital Chir 2019. [DOI: 10.1016/j.jeurceramsoc.2019.02.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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