Sampsa Pursiainen

Publication Activity (10 Years)

Years Active: 2009-2024
Publications (10 Years): 28

Top Topics

Finite Element Method

Top Venues

IEEE Trans. Computational Imaging

Comput. Methods Programs Biomed.

Publications

Santtu Söderholm, Joonas Lahtinen, Carsten H. Wolters, Sampsa Pursiainen
The effects of peeling on finite element method -based EEG source reconstruction. Biomed. Signal Process. Control. 89 (2024)
Maryam Samavaki, Santtu Söderholm, Arash Zarrin Nia, Sampsa Pursiainen
Modeling of blood flow in cerebral arterial circulation and its dynamic impact on electrical conductivity in a realistic multi-compartment head model. Comput. Methods Programs Biomed. 244 (2024)
Maryam Samavaki, Santtu Söderholm, Arash Zarrin Nia, Sampsa Pursiainen
A Coupled Diffusion Approximation for Spatiotemporal Hemodynamic Response and Deoxygenated Blood Volume Fraction in Microcirculation. CoRR (2024)
Joonas Lahtinen, Atena Rezaei, Sampsa Pursiainen
Effects of source space resolution, randomization and averaging in focal EEG source localization: Estimation of forward and inverse errors. J. Comput. Appl. Math. 448 (2024)
Yusuf Oluwatoki Yusuf, Astrid Dufaure, Liisa-Ida Sorsa, Christelle Eyraud, Jean-Michel Geffrin, Alain Hérique, Sampsa Pursiainen
Anomaly distinguishability in an asteroid analogue using quasi-monostatic experimental radar measurements. CoRR (2024)
Santtu Söderholm, Joonas Lahtinen, Carsten H. Wolters, Sampsa Pursiainen
The Effects of Peeling on Finite Element Method -based EEG Source Reconstruction. CoRR (2023)
Maryam Samavaki, Yusuf Oluwatoki Yusuf, Arash Zarrin Nia, Santtu Söderholm, Joonas Lahtinen, Fernando Galaz Prieto, Sampsa Pursiainen
Pressure-Poisson equation in numerical simulation of cerebral arterial circulation and its effect on the electrical conductivity of the brain. Comput. Methods Programs Biomed. 242 (2023)
Malte B. Höltershinken, Pia Lange, Tim Erdbrügger, Yvonne Buschermöhle, Fabrice Wallois, Alena Buyx, Sampsa Pursiainen, Johannes Vorwerk, Christian Engwer, Carsten H. Wolters
The Localized Subtraction Approach For EEG and MEG Forward Modeling. CoRR (2023)
Joonas Lahtinen, Alexandra Koulouri, Atena Rezaei, Sampsa Pursiainen
Conditionally Exponential Prior in Focal Near- and Far-Field EEG Source Localization via Randomized Multiresolution Scanning (RAMUS). J. Math. Imaging Vis. 64 (6) (2022)
Fernando Galaz Prieto, Atena Rezaei, Maryam Samavaki, Sampsa Pursiainen
L1-norm vs. L2-norm fitting in optimizing focal multi-channel tES stimulation: linear and semidefinite programming vs. weighted least squares. Comput. Methods Programs Biomed. 226 (2022)
Fernando Galaz Prieto, Atena Rezaei, Maryam Samavaki, Sampsa Pursiainen
L1-norm vs. L2-norm fitting in optimizing focal multi-channel tES stimulation: linear and semidefinite programming vs. weighted least squares. CoRR (2022)
Fernando Galaz Prieto, Joonas Lahtinen, Yusuf Oluwatoki Yusuf, Atena Rezaei, Sampsa Pursiainen
Highly Adaptive and Automated Tetrahedral Mesh Generator for Multi-Compartment Human Head Model with Deep Brain Structures in EEG. CoRR (2022)
Tim Erdbrügger, Andreas Westhoff, Malte Hoeltershinken, Jan-Ole Radecke, Yvonne Buschermoehle, Alena Buyx, Fabrice Wallois, Sampsa Pursiainen, Joachim Gross, Rebekka Lencer, Christian Engwer, Carsten H. Wolters
CutFEM forward modeling for EEG source analysis. CoRR (2022)
Atena Rezaei, Joonas Lahtinen, Frank Neugebauer, Marios Antonakakis, Maria Carla Piastra, Alexandra Koulouri, Carsten H. Wolters, Sampsa Pursiainen
Reconstructing subcortical and cortical somatosensory activity via the RAMUS inverse source analysis technique using median nerve SEP data. NeuroImage 245 (2021)
Qin He, Sampsa Pursiainen
An extended application 'Brain Q' processing EEG and MEG data of finger stimulation extended from 'Zeffiro' based on machine learning and signal processing. Cogn. Syst. Res. 69 (2021)
Joonas Lahtinen, Alexandra Koulouri, Atena Rezaei, Sampsa Pursiainen
Conditionally Exponential Prior in Focal Near- and Far-Field EEG Source Localization via Randomized Multiresolution Scanning (RAMUS). CoRR (2021)
Qin He, Atena Rezaei, Sampsa Pursiainen
Zeffiro User Interface for Electromagnetic Brain Imaging: a GPU Accelerated FEM Tool for Forward and Inverse Computations in Matlab. Neuroinformatics 18 (2) (2020)
Liisa-Ida Sorsa, Mika Takala, Christelle Eyraud, Sampsa Pursiainen
A Time-Domain Multigrid Solver With Higher-Order Born Approximation for Full-Wave Radar Tomography of a Complex-Shaped Target. IEEE Trans. Computational Imaging 6 (2020)
Atena Rezaei, Alexandra Koulouri, Sampsa Pursiainen
Randomized Multiresolution Scanning in Focal and Fast E/MEG Sensing of Brain Activity with a Variable Depth. CoRR (2020)
Tuuli Miinalainen, Atena Rezaei, Defne Us, Andreas Nüßing, Christian Engwer, Carsten H. Wolters, Sampsa Pursiainen
A realistic, accurate and fast source modeling approach for the EEG forward problem. NeuroImage 184 (2019)
Mika Takala, Patrick Bambach, Jakob Deller, Esa Vilenius, Manfred Wittig, Harald Lentz, Hans Martin Braun, Mikko Kaasalainen, Sampsa Pursiainen
Far-Field Inversion for the Deep Interior Scanning CubeSat. IEEE Trans. Aerosp. Electron. Syst. 55 (4) (2019)
Andreas Nüßing, Maria Carla Piastra, Sophie Schrader, Tuuli Miinalainen, Sampsa Pursiainen, Heinrich Brinck, Carsten H. Wolters, Christian Engwer
duneuro - A software toolbox for forward modeling in neuroscience. CoRR (2019)
Qin He, Atena Rezaei, Sampsa Pursiainen
Zeffiro user interface for electromagnetic brain imaging: a GPU accelerated FEM tool for forward and inverse computations in Matlab. CoRR (2018)
Mika Takala, Defne Us, Sampsa Pursiainen
Multigrid-Based Inversion for Volumetric Radar Imaging With Asteroid Interior Reconstruction as a Potential Application. IEEE Trans. Computational Imaging 4 (2) (2018)
Johannes Vorwerk, Christian Engwer, Sampsa Pursiainen, Carsten H. Wolters
A Mixed Finite Element Method to Solve the EEG Forward Problem. IEEE Trans. Medical Imaging 36 (4) (2017)
Mika Takala, Timo D. Hämäläinen, Sampsa Pursiainen
The Effect of Hardware-Computed Travel Time on Localization Accuracy in the Inversion of Experimental (Acoustic) Waveform Data. IEEE Trans. Computational Imaging 3 (2) (2017)
Sampsa Pursiainen, Mikko Kaasalainen
Orbiter-to-orbiter tomography: a potential approach for small solar system bodies. IEEE Trans. Aerosp. Electron. Syst. 52 (6) (2016)
Martin Bauer, Sampsa Pursiainen, Johannes Vorwerk, Harald Köstler, Carsten H. Wolters
Comparison Study for Whitney (Raviart-Thomas)-Type Source Models in Finite-Element-Method-Based EEG Forward Modeling. IEEE Trans. Biomed. Eng. 62 (11) (2015)
Felix Lucka, Sampsa Pursiainen, Martin Burger, Carsten H. Wolters
Hierarchical Bayesian inference for the EEG inverse problem using realistic FE head models: Depth localization and source separation for focal primary currents. NeuroImage 61 (4) (2012)
Daniela Calvetti, Harri Hakula, Sampsa Pursiainen, Erkki Somersalo
Conditionally Gaussian Hypermodels for Cerebral Source Localization. SIAM J. Imaging Sci. 2 (3) (2009)