Conference abstract |
- Abreu, Rodolfo; Leal, Alberto; Figueiredo, Patrícia. "Classification of BOLD-fMRI dynamic functional connectivity states based
on simultaneous EEG microstates". Paper presented in Proc. 27th Annual Meeting of the International Society for Magnetic
Resonance in Medicine (ISMRM 2019), Montréal, 2019.
Published
- Abreu, Rodolfo; Carmona, Joana; 6016-3A42-8D46; Leal, Alberto; Nascimento, Jacinto; Figueiredo, Patrícia. "Classification
of sleep stages from fMRI dynamic functional connectivity using deep learning". Paper presented in Proc. 27th Annual Meeting
of the International Society for Magnetic Resonance in Medicine (ISMRM 2019), Montréal, 2019.
Published
- Abreu, Rodolfo; Leal, Alberto; Figueiredo, Patrícia. "EEG microstate and spectral signatures of epileptic patterns found in
fMRI dynamic functional connectivity". Paper presented in Proc. 26th Annual Meeting of the International Society for Magnetic
Resonance in Medicine (ISMRM 2018), Paris, 2018.
Published
- Abreu, Rodolfo; Leal, Alberto; Figueiredo, Patrícia. "Classification of epileptic states from fMRI dynamic functional connectivity
using machine learning". Paper presented in Proc. 23rd Annual Meeting of the Organization for Human Brain Mapping (OHBM
2017), Vancouver, 2017.
Published
- Abreu, Rodolfo; Leal, Alberto; Figueiredo, Patrícia. "Mapping epileptic networks by EEG-based selection of fMRI functional
connectivity dynamic components". Paper presented in Proc. 23rd Annual Meeting of the Organization for Human Brain Mapping
(OHBM 2017), Vancouver, 2017.
Published
- Abreu, Rodolfo; Leal, Alberto; Figueiredo, Patrícia. "Improved mapping of epileptic networks based on the correlation of BOLD-fMRI
dynamic functional connectivity components with simultaneous EEG". Paper presented in Proc. 25th Annual Meeting of the
International Society for Magnetic Resonance in Medicine (ISMRM 2017), Honolulu, 2017.
Published
- Abreu, Rodolfo; Nunes, Sandro; Leal, Alberto; Figueiredo, Patrícia. "ECG-derived respiratory signal for physiological noise
correction in simultaneous EEG-fMRI for enhanced mapping of epileptic activity". Paper presented in Proc. 24th Annual Meeting
of the International Society for Magnetic Resonance in Medicine (ISMRM 2016), Singapore, 2016.
Published
- Abreu, Rodolfo; Nunes, Sandro; Leal, Alberto; Figueiredo, Patrícia. "ECG-derived Respiratory signal estimation as a tool for
physiological noise correction in fMRI". Paper presented in Proc. 21st Annual Meeting of the Organization for Human Brain
Mapping (OHBM 2015), Honolulu, 2015.
Published
- Abreu, Rodolfo; Leite, Marco; Leal, Alberto; Figueiredo, Patrícia. "Ballistocardiogram artefact correction taking into account
background physiological signal preservation in simultaneous EEG-fMRI". Paper presented in Proc. 23rd Annual Meeting of
the International Society for Magnetic Resonance in Medicine (ISMRM 2015), Toronto, 2015.
Published
- Rodrigues, João; Andrade, Alexandre; Leal, Alberto. "Os espasmos infantis associam-se a surtos de actividade EEG rítmica em
múltiplas bandas de alta frequência entre 15-300 Hz, Análise de um caso clínico submetido a cirurgia da epilepsia". Paper
presented in 27º Encontro Nacional de Epileptologia, Coimbra, 2015.
Published
- Abreu, Rodolfo; G. Nunes, Rita; Murta, Teresa; Leal, Alberto; Figueiredo, Patrícia. "Structural and functional mapping of
the seizure propagation pathway in a hypothalamic hamartoma". Paper presented in Proc. 20th Annual Meeting of the Organization
for Human Brain Mapping (OHBM 2014), Hamburg, 2014.
Published
- Abreu, Rodolfo; Leite, Marco; Leal, Alberto; Figueiredo, Patrícia. "Objective template-based selection of EEG ICA epilepsy-related
components". Paper presented in Proc. 20th Annual Meeting of the Organization for Human Brain Mapping (OHBM 2014),
Hamburg, 2014.
Published
- Abreu, Rodolfo; Leal, Alberto; Figueiredo, Patrícia. "Selection of epilepsy-related EEG ICA components for simultaneous fMRI
analysis". Paper presented in Proc. 19h Portuguese Conference on Pattern Recognition (RecPad 2013), Lisbon,
2013.
Published
- Abreu, Rodolfo; G. Nunes, Rita; Leal, Alberto; Figueiredo, Patrícia. "A multimodal approach combining EEG, fMRI and DTI for
mapping epileptic networks". Paper presented in Proc. 30th Annual Scientific Meeting of the European Society for Magnetic
Resonance in Medicine and Biology (ESMRMB 2013), Toulouse, 2013.
Published
- Lopes, Ricardo; JERÓNIMO, Rita; Ferraz, Luis; Jordão, C.; Leal, Alberto. "A localização da "Word Form Area" em Ressonância
Magnética funcional ajuda a prevenir a alexia nas cirurgias da epilepsia do córtex posterior". Paper presented in Sinapse
- Congresso Nacional da Sociedade Portuguesa de Neurologia, Lisboa, 2013.
Published
- Ferraz, Luis; JERÓNIMO, Rita; Lopes, Ricardo; Romero, C.; Leal, Alberto. "Limitações da Ressonância Magnética Funcional da
Linguagem no apoio à decisão cirúrgica: a propósito de um caso clinico". Paper presented in Sinapse - Congresso Nacional
da Sociedade Portuguesa de Neurologia, Lisboa, 2013.
Published
- Lopes, Ricardo; Ferraz, Luis; JERÓNIMO, Rita; Gomes, J.; Leal, Alberto. "Neuropsicologia do processamento visual de faces
na avaliação pré cirúrgica de epilepsias em idade pediátrica". Paper presented in Sinapse - Congresso Nacional da Sociedade
Portuguesa de Neurologia, Lisboa, 2013.
Published
- Lopes, Ricardo; JERÓNIMO, Rita; Arriaga, P.; Barrambana, R.; Leal, Alberto. "Avaliação Multimodal Neurofisiológica-Hemodinâmica-Neuropsicológica
da função dos lobos occipitais para aplicação na Cirurgia da Epilepsia". Paper presented in Sinapse - Congresso Nacional
da Sociedade Portuguesa de Neurologia, 2011.
Published
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Conference paper |
- Borges, Daniel Filipe; Gomes, Roseli; Coelho, Paulo; Leal, Alberto. "Síndrome de Jeavons : redes neuronais, EEG e manifestações
clínicas". 2019.
- Borges, Daniel Filipe; Leal, Alberto; Correia, Filipe; Coelho, Paulo. "Epilepsia focal estrutural: quando a neurofisiologia
e a neurorradiologia não (a)provam". 2019.
- Borges, Daniel Filipe; Gomes, Roseli; Leal, Alberto. "Síndrome de Landau-Kleffner com desconexão tálamo-cortical : proposta
de um mecanismo etiopatológico". 2017.
- Borges, Daniel Filipe; Silva, Heloísa; Santos, Andreia; Morim, Filipe; Leal, Alberto. "O papel do EEG Ambulatório 24h na investigação
de doentes com suspeita de epilepsia : experiência de 4 anos". 2016.
- Abreu, Rodolfo; Leite, Marco; Leal, Alberto; Figueiredo, Patricia. "STTICS: A template-based algorithm for the objective selection
of epilepsy-related EEG ICA components". Paper presented in 2015 IEEE 12th International Symposium on Biomedical Imaging
(ISBI), New York City, 2015.
Published • 10.1109/isbi.2015.7163883
|
Conference poster |
- Oliveira, Ana Rita; Figueiredo, Patricia; Leal, Alberto; Nunes, Rita G.. "Identification of brain connectivity disruptions
due to thalamic lesions in early development using Diffusion-Weighted MRI". Paper presented in IEEE 6th Portuguese Meeting
on Bioengineering (ENBENG), 2019.
10.1109/enbeng.2019.8692448
- Santos, Francisco; Nunes, Rita G.; Rodrigues, João; Leal, Alberto; Andrade, Alexandre. "Unravelling the Dynamics of Epilepsy
Using Effective Connectivity and Hemodynamic Estimation: Two Case Studies". Paper presented in 32nd anual meeting of the
European Society of Magnetic Resonance in Medicine and Biology, 2015.
|
Journal article |
- Daniel Filipe Borges; João Fernandes; Joana Isabel Soares; João Casalta-Lopes; Daniel Carvalho; Sándor Beniczky; Alberto Leal.
"The sound of silence: Quantification of typical absence seizures by sonifying EEG signals from a custom-built wearable device".
Epileptic Disorders (2024): https://doi.org/10.1002/epd2.20194.
10.1002/epd2.20194
- Daniel Carvalho; Carla Mendonça; João Carvalho; Ana Martins; Alberto Leal. "High incidence of early thalamic lesions in the
Continuous Spike-Wave related with slow Sleep (CSWS)". Epilepsy & Behavior (2023): http://dx.doi.org/10.1016/j.yebeh.2022.109031.
10.1016/j.yebeh.2022.109031
- Daniel Filipe Borges; Joana Isabel Soares; Filipe Correia; Fábio A. Nascimento; Alberto Leal. "Visual word form area hyperexcitability
associated with focal epileptiform activity in a case of reading epilepsy". Epileptic Disorders (2022): http://dx.doi.org/10.1684/epd.2022.1496.
10.1684/epd.2022.1496
- Alberto Leal. "Spatial and temporal dynamics of epileptic activity at sleep onset in the Encephalopathy with Status Epilepticus
during slow sleep (ESES) after unilateral thalamic lesions". Clinical Neurophysiology (2021): http://dx.doi.org/10.1016/j.clinph.2020.11.007.
10.1016/j.clinph.2020.11.007
- Ana Rita Oliveira; Rita G. Nunes; Patrícia Figueiredo; Ana I. Dias; Alberto Leal. "Regional White Matter Atrophy Correlates
with Spike Activity in Encephalopathy Related to Status Epilepticus During Slow Sleep (ESES) After Early Thalamic Lesions".
Brain Topography (2020): http://dx.doi.org/10.1007/s10548-020-00784-3.
10.1007/s10548-020-00784-3
- Abreu, Rodolfo; Leal, Alberto; Figueiredo, Patrícia. "Identification of epileptic brain states by dynamic functional connectivity
analysis of simultaneous EEG-fMRI: a dictionary learning approach". Scientific Reports 9 1 (2019): http://dx.doi.org/10.1038/s41598-018-36976-y.
Published • 10.1038/s41598-018-36976-y
- Abreu, Rodolfo; Leal, Alberto; Lopes da Silva, Fernando; Figueiredo, Patrícia. "EEG synchronization measures predict epilepsy-related
BOLD-fMRI fluctuations better than commonly used univariate metrics". Clinical Neurophysiology 129 3 (2018): 618-635.
http://dx.doi.org/10.1016/j.clinph.2017.12.038.
Published • 10.1016/j.clinph.2017.12.038
- Abreu, Rodolfo; Leal, Alberto; Figueiredo, Patrícia. "EEG-Informed fMRI: A Review of Data Analysis Methods". Frontiers
in Human Neuroscience 12 (2018): http://dx.doi.org/10.3389/fnhum.2018.00029.
Published • 10.3389/fnhum.2018.00029
- Leal, Alberto; Calado, Eulália; Vieira, José P.; Mendonça, Carla; Ferreira, José C.; Ferreira, Hugo; Carvalho, Daniel; et
al. "Anatomical and physiological basis of continuous spike–wave of sleep syndrome after early thalamic lesions". Epilepsy
& Behavior 78 (2018): 243-255. http://dx.doi.org/10.1016/j.yebeh.2017.08.027.
Published • 10.1016/j.yebeh.2017.08.027
- Abreu, Rodolfo; Nunes, Sandro; Leal, Alberto; Figueiredo, Patrícia. "Physiological noise correction using ECG-derived respiratory
signals for enhanced mapping of spontaneous neuronal activity with simultaneous EEG-fMRI". NeuroImage 154 (2017): 115-127.
http://dx.doi.org/10.1016/j.neuroimage.2016.08.008.
Published • 10.1016/j.neuroimage.2016.08.008
- Abreu, Rodolfo; Leite, Marco; Leal, Alberto; Figueiredo, Patrícia. "Objective selection of epilepsy-related independent components
from EEG data". Journal of Neuroscience Methods 258 (2016): 67-78. http://dx.doi.org/10.1016/j.jneumeth.2015.10.003.
Published • 10.1016/j.jneumeth.2015.10.003
- Leal, Alberto; Vieira, José P.; Lopes, Ricardo; Nunes, Rita G.; Gonçalves, Sónia I.; Lopes da Silva, Fernando; Figueiredo,
Patrícia. "Dynamics of epileptic activity in a peculiar case of childhood absence epilepsy and correlation with thalamic levels
of GABA". Epilepsy & Behavior Case Reports 5 (2016): 57-65. http://dx.doi.org/10.1016/j.ebcr.2016.03.004.
Published • 10.1016/j.ebcr.2016.03.004
- Rothlubbers, S.; Relvas, V.; Leal, A.; Figueiredo, P.. "Reduction of EEG artefacts induced by vibration in the MR-environment".
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS (2013):
2092-2095. http://www.scopus.com/inward/record.url?eid=2-s2.0-84886448762&partnerID=MN8TOARS.
10.1109/EMBC.2013.6609945
- Leite, M.; Leal, A.; Figueiredo, P.. "Transfer function between EEG and BOLD signals of epileptic activity". Frontiers
in Neurology 4 JAN (2013): http://www.scopus.com/inward/record.url?eid=2-s2.0-84874556354&partnerID=MN8TOARS.
10.3389/fneur.2013.00001
- Rothlübbers, S.; Relvas, V.; Leal, A.; Figueiredo, P.. "Characterization and reduction of MR-environment-related EEG artefacts".
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
7887 LNCS (2013): 808-818. http://www.scopus.com/inward/record.url?eid=2-s2.0-84883200928&partnerID=MN8TOARS.
10.1007/978-3-642-38628-2_96
- Leal, A.J.R.; Lopes, R.; Ferreira, J.C.. "Origin and dynamics of epileptic activity in a symptomatic case of Panayiotopoulos
syndrome: Correlation with clinical manifestations". Clinical Neurophysiology 124 1 (2013): 20-26. http://www.scopus.com/inward/record.url?eid=2-s2.0-84871428177&partnerID=MN8TOARS.
10.1016/j.clinph.2012.06.007
- Leite, M.; Figueiredo, P.; Leal, A.. "Estimation of the haemodynamic response to epileptic activity in EEG-fMRI data". 2012
IEEE 2nd Portuguese Meeting in Bioengineering, ENBENG 2012 (2012): http://www.scopus.com/inward/record.url?eid=2-s2.0-84869381451&partnerID=MN8TOARS.
10.1109/ENBENG.2012.6331398
- Tana, M.G.; Bianchi, A.M.; Sclocco, R.; Franchin, T.; Cerutti, S.; Leal, A.. "Parcel-based connectivity analysis of fMRI data
for the study of epileptic seizure propagation". Brain Topography 25 4 (2012): 345-361. http://www.scopus.com/inward/record.url?eid=2-s2.0-84867019283&partnerID=MN8TOARS.
10.1007/s10548-012-0225-2
- Faria, P.; Fregni, F.; Sebastião, F.; Dias, A.I.; Leal, A.. "Feasibility of focal transcranial DC polarization with simultaneous
EEG recording: Preliminary assessment in healthy subjects and human epilepsy". Epilepsy and Behavior 25 3 (2012): 417-425.
http://www.scopus.com/inward/record.url?eid=2-s2.0-84868711054&partnerID=MN8TOARS.
10.1016/j.yebeh.2012.06.027
- Murta, T.; Leal, A.; Garrido, M.I.; Figueiredo, P.. "Dynamic Causal Modelling of epileptic seizure propagation pathways: A
combined EEG-fMRI study". NeuroImage 62 3 (2012): 1634-1642. http://www.scopus.com/inward/record.url?eid=2-s2.0-84863527933&partnerID=MN8TOARS.
10.1016/j.neuroimage.2012.05.053
- Murta, T.; Figueiredo, P.; Leal, A.. "EEG-fMRI measures of functional brain connectivity in epilepsy". 1st Portuguese Meeting
in Biomedical Engineering, ENBENG 2011 (2011): http://www.scopus.com/inward/record.url?eid=2-s2.0-80053942114&partnerID=MN8TOARS.
10.1109/ENBENG.2011.6026094
- Lopes, R.; Cabral, P.; Canas, N.; Breia, P.; Foreid, J.P.; Calado, E.; Silva, R.; Leal, A.. "N170 asymmetry as an index of
inferior occipital dysfunction in patients with symptomatic occipital lobe epilepsy". Clinical Neurophysiology 122
1 (2011): 9-15. http://www.scopus.com/inward/record.url?eid=2-s2.0-78650169728&partnerID=MN8TOARS.
10.1016/j.clinph.2010.05.023
- Faria, P.; Leal, A.; Miranda, P.C.. "Comparing different electrode configurations using the 10-10 international system in
tDCS: A finite element model analysis". Proceedings of the 31st Annual International Conference of the IEEE Engineering
in Medicine and Biology Society: Engineering the Future of Biomedicine, EMBC 2009 (2009): 1596-1599. http://www.scopus.com/inward/record.url?eid=2-s2.0-77950983944&partnerID=MN8TOARS.
10.1109/IEMBS.2009.5334121
- Leal, A.J.R.; Monteiro, J.P.; Secca, M.F.; Jordão, C.. "Functional brain mapping of ictal activity in gelastic epilepsy associated
with hypothalamic hamartoma: A case report". Epilepsia 50 6 (2009): 1624-1631. http://www.scopus.com/inward/record.url?eid=2-s2.0-66849101959&partnerID=MN8TOARS.
10.1111/j.1528-1167.2008.01810.x
- Faria, P.; Leal, A.; Miranda, P.C.. "Comparing different electrode configurations using the 10-10 international system in
tDCS: a finite element model analysis.". Conference proceedings : ... Annual International Conference of the IEEE Engineering
in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 2009 (2009): 1596-1599.
http://www.scopus.com/inward/record.url?eid=2-s2.0-77949883329&partnerID=MN8TOARS.
- Leal, A.J.R.; Dias, A.I.; Vieira, J.P.; Moreira, A.; Távora, L.; Calado, E.. "Analysis of the dynamics and origin of epileptic
activity in patients with tuberous sclerosis evaluated for surgery of epilepsy". Clinical Neurophysiology 119 4 (2008):
853-861. http://www.scopus.com/inward/record.url?eid=2-s2.0-40649105982&partnerID=MN8TOARS.
10.1016/j.clinph.2007.11.176
- Leal, A.J.R.; Ferreira, J.C.; Dias, A.I.; Calado, E.. "Origin of frontal lobe spikes in the early onset benign occipital lobe
epilepsy (Panayiotopoulos syndrome)". Clinical Neurophysiology 119 9 (2008): 1985-1991. http://www.scopus.com/inward/record.url?eid=2-s2.0-47749137741&partnerID=MN8TOARS.
10.1016/j.clinph.2008.04.299
- Gamito, P.; Saraiva, T.; Oliveira, J.; Morais, D.; Rosa, P.; Pombal, M.; Gamito, L.; Leal, A.. "Physiological assessment during
VR PTSD treatment of a motor vehicle accident patient". Journal of Cyber Therapy and Rehabilitation 1 3 (2008): 258-266.
http://www.scopus.com/inward/record.url?eid=2-s2.0-77949747759&partnerID=MN8TOARS.
- Secca, M.F.; Fernandes, H.M.; Cabral, J.R.; Leal, A.. "Optimization of fMRI processing parameters for simutaneous acquisition
of EEG/fMRI in focal epilepsy". IFMBE Proceedings 20 IFMBE (2008): 505-508. http://www.scopus.com/inward/record.url?eid=2-s2.0-78049393545&partnerID=MN8TOARS.
10.1007/978-3-540-69367-3-135
- Leal, A.J.R.; Nunes, S.; Dias, A.I.; Vieira, J.P.; Moreira, A.; Calado, E.. "Analysis of the generators of epileptic activity
in early-onset childhood benign occipital lobe epilepsy". Clinical Neurophysiology 118 6 (2007): 1341-1347. http://www.scopus.com/inward/record.url?eid=2-s2.0-34248186058&partnerID=MN8TOARS.
10.1016/j.clinph.2007.02.017
- Leal, A.J.R.; Nunes, S.; Martins, A.; Secca, M.F.; Jordão, C.. "Brain mapping of epileptic activity in a case of idiopathic
occipital lobe epilepsy (Panayiotopoulos syndrome)". Epilepsia 48 6 (2007): 1179-1183. http://www.scopus.com/inward/record.url?eid=2-s2.0-34249793233&partnerID=MN8TOARS.
10.1111/j.1528-1167.2007.01119.x
- Leal, A.; Dias, A.; Vieira, J.P.; Secca, M.; Jordão, C.. "The BOLD effect of interictal spike activity in childhood occipital
lobe epilepsy". Epilepsia 47 9 (2006): 1536-1542. http://www.scopus.com/inward/record.url?eid=2-s2.0-33748681786&partnerID=MN8TOARS.
10.1111/j.1528-1167.2006.00626.x
- Fernandas, J.M.; Leal, A.; Cunha, J.P.S.. "EpiGauss: Spatio-temporal characterization of epiletogenic activity applied to
hypothalamic hamartomas". Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence
and Lecture Notes in Bioinformatics) 4142 LNCS (2006): 680-690. http://www.scopus.com/inward/record.url?eid=2-s2.0-33749653859&partnerID=MN8TOARS.
- Leal, A.J.R.; Dias, A.I.; Vieira, J.P.. "Analysis of the EEG dynamics of epileptic activity in gelastic seizures using decomposition
in independent components". Clinical Neurophysiology 117 7 (2006): 1595-1601. http://www.scopus.com/inward/record.url?eid=2-s2.0-33745382010&partnerID=MN8TOARS.
10.1016/j.clinph.2006.03.020
- Vale, J.; Canas, N.; Leal, A.; Vilar, H.. "Thyrotoxic periodic paralysis: A case report | Paralisia periódica tireotóxica".
Acta Medica Portuguesa 18 5 (2005): 399-402. http://www.scopus.com/inward/record.url?eid=2-s2.0-32044471559&partnerID=MN8TOARS.
- Leal, A.J.R.; Moreira, A.; Robalo, C.; Ribeiro, C.. "Different electroclinical manifestations of the epilepsy associated with
hamartomas connecting to the middle or posterior hypothalamus". Epilepsia 44 9 (2003): 1191-1195. http://www.scopus.com/inward/record.url?eid=2-s2.0-0041914577&partnerID=MN8TOARS.
10.1046/j.1528-1157.2003.66902.x
- Leal, A.J.R.; Passão, V.; Calado, E.; Vieira, J.P.; Silva Cunha, J.P.. "Interictal spike EEG source analysis in hypothalamic
hamartoma epilepsy". Clinical Neurophysiology 113 12 (2002): 1961-1969. http://www.scopus.com/inward/record.url?eid=2-s2.0-0036899130&partnerID=MN8TOARS.
10.1016/S1388-2457(02)00253-5
- Leal, A.J.R.; Calado, E.. "Involuntary rhythmic leg movements time-locked with the respiratory cycle". Pediatric Neurology
25 5 (2001): 405-408. http://www.scopus.com/inward/record.url?eid=2-s2.0-0035677378&partnerID=MN8TOARS.
10.1016/S0887-8994(01)00327-7
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