Sampsa Pursiainen

According to our database, Sampsa Pursiainen authored at least 26 papers between 2009 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of five.

2025

A coupled diffusion approximation for spatiotemporal hemodynamic response and deoxygenated blood volume fraction in microcirculation.

Maryam Samavaki, Santtu Söderholm, Arash Zarrin Nia, Sampsa Pursiainen

Biomed. Signal Process. Control., 2025

2024

Effects of source space resolution, randomization and averaging in focal EEG source localization: Estimation of forward and inverse errors.

Joonas Lahtinen, Atena Rezaei, Sampsa Pursiainen

J. Comput. Appl. Math., 2024

Anomaly distinguishability in an asteroid analogue using quasi-monostatic experimental radar measurements.

Yusuf Oluwatoki Yusuf, Astrid Dufaure, Liisa-Ida Sorsa, Christelle Eyraud, Jean-Michel Geffrin, Alain Hérique, Sampsa Pursiainen

CoRR, 2024

Modeling of blood flow in cerebral arterial circulation and its dynamic impact on electrical conductivity in a realistic multi-compartment head model.

Maryam Samavaki, Santtu Söderholm, Arash Zarrin Nia, Sampsa Pursiainen

Comput. Methods Programs Biomed., 2024

The effects of peeling on finite element method -based EEG source reconstruction.

Santtu Söderholm, Joonas Lahtinen, Carsten H. Wolters, Sampsa Pursiainen

Biomed. Signal Process. Control., 2024

2023

Pressure-Poisson equation in numerical simulation of cerebral arterial circulation and its effect on the electrical conductivity of the brain.

Maryam Samavaki, Yusuf Oluwatoki Yusuf, Arash Zarrin Nia, Santtu Söderholm, Joonas Lahtinen, Fernando Galaz Prieto, Sampsa Pursiainen

Comput. Methods Programs Biomed., December, 2023

The Localized Subtraction Approach For EEG and MEG Forward Modeling.

Malte B. Höltershinken, Pia Lange, Tim Erdbrügger, Yvonne Buschermöhle, Fabrice Wallois, Alena Buyx, Sampsa Pursiainen, Johannes Vorwerk, Christian Engwer, Carsten H. Wolters

CoRR, 2023

2022

Conditionally Exponential Prior in Focal Near- and Far-Field EEG Source Localization via Randomized Multiresolution Scanning (RAMUS).

Joonas Lahtinen, Alexandra Koulouri, Atena Rezaei, Sampsa Pursiainen

J. Math. Imaging Vis., 2022

CutFEM forward modeling for EEG source analysis.

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

CoRR, 2022

Highly Adaptive and Automated Tetrahedral Mesh Generator for Multi-Compartment Human Head Model with Deep Brain Structures in EEG.

Fernando Galaz Prieto, Joonas Lahtinen, Yusuf Oluwatoki Yusuf, Atena Rezaei, Sampsa Pursiainen

CoRR, 2022

L1-norm vs. L2-norm fitting in optimizing focal multi-channel tES stimulation: linear and semidefinite programming vs. weighted least squares.

Fernando Galaz Prieto, Atena Rezaei, Maryam Samavaki, Sampsa Pursiainen

Comput. Methods Programs Biomed., 2022

2021

Reconstructing subcortical and cortical somatosensory activity via the RAMUS inverse source analysis technique using median nerve SEP data.

Atena Rezaei, Joonas Lahtinen, Frank Neugebauer, Marios Antonakakis, Maria Carla Piastra, Alexandra Koulouri, Carsten H. Wolters, Sampsa Pursiainen

NeuroImage, 2021

An extended application 'Brain Q' processing EEG and MEG data of finger stimulation extended from 'Zeffiro' based on machine learning and signal processing.

Qin He, Sampsa Pursiainen

Cogn. Syst. Res., 2021

2020

A Time-Domain Multigrid Solver With Higher-Order Born Approximation for Full-Wave Radar Tomography of a Complex-Shaped Target.

Liisa-Ida Sorsa, Mika Takala, Christelle Eyraud, Sampsa Pursiainen

IEEE Trans. Computational Imaging, 2020

Zeffiro User Interface for Electromagnetic Brain Imaging: a GPU Accelerated FEM Tool for Forward and Inverse Computations in Matlab.

Qin He, Atena Rezaei, Sampsa Pursiainen

Neuroinformatics, 2020

Randomized Multiresolution Scanning in Focal and Fast E/MEG Sensing of Brain Activity with a Variable Depth.

Atena Rezaei, Alexandra Koulouri, Sampsa Pursiainen

CoRR, 2020

2019

Far-Field Inversion for the Deep Interior Scanning CubeSat.

Mika Takala, Patrick Bambach, Jakob Deller, Esa Vilenius, Manfred Wittig, Harald Lentz, Hans Martin Braun, Mikko Kaasalainen, Sampsa Pursiainen

IEEE Trans. Aerosp. Electron. Syst., 2019

A realistic, accurate and fast source modeling approach for the EEG forward problem.

Tuuli Miinalainen, Atena Rezaei, Defne Us, Andreas Nüßing, Christian Engwer, Carsten H. Wolters, Sampsa Pursiainen

NeuroImage, 2019

duneuro - A software toolbox for forward modeling in neuroscience.

Andreas Nüßing, Maria Carla Piastra, Sophie Schrader, Tuuli Miinalainen, Sampsa Pursiainen, Heinrich Brinck, Carsten H. Wolters, Christian Engwer

CoRR, 2019

2018

Multigrid-Based Inversion for Volumetric Radar Imaging With Asteroid Interior Reconstruction as a Potential Application.

Mika Takala, Defne Us, Sampsa Pursiainen

IEEE Trans. Computational Imaging, 2018

2017

A Mixed Finite Element Method to Solve the EEG Forward Problem.

Johannes Vorwerk, Christian Engwer, Sampsa Pursiainen, Carsten H. Wolters

IEEE Trans. Medical Imaging, 2017

The Effect of Hardware-Computed Travel Time on Localization Accuracy in the Inversion of Experimental (Acoustic) Waveform Data.

Mika Takala, Timo D. Hämäläinen, Sampsa Pursiainen

IEEE Trans. Computational Imaging, 2017

2016

Orbiter-to-orbiter tomography: a potential approach for small solar system bodies.

Sampsa Pursiainen, Mikko Kaasalainen

IEEE Trans. Aerosp. Electron. Syst., 2016

2015

Comparison Study for Whitney (Raviart-Thomas)-Type Source Models in Finite-Element-Method-Based EEG Forward Modeling.

Martin Bauer, Sampsa Pursiainen, Johannes Vorwerk, Harald Köstler, Carsten H. Wolters

IEEE Trans. Biomed. Eng., 2015

2012

Hierarchical Bayesian inference for the EEG inverse problem using realistic FE head models: Depth localization and source separation for focal primary currents.

Felix Lucka, Sampsa Pursiainen, Martin Burger, Carsten H. Wolters

NeuroImage, 2012

2009

Conditionally Gaussian Hypermodels for Cerebral Source Localization.

Daniela Calvetti, Harri Hakula, Sampsa Pursiainen, Erkki Somersalo

SIAM J. Imaging Sci., 2009