Omar Narvaez Delgado
Doctoral Researcher
Faculty of Health Sciences, A.I. Virtanen Institute for Molecular Sciences
A.I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences
Research groups
Publications
11/11 items-
Data-driven classification of tissue water populations by massively multidimensional diffusion-relaxation correlation MRI
Narvaez, Omar; Yon, Maxime; Salo, Raimo A; Kyyriäinen, Jenni; Estela, Melina; Paasonen, Ekaterina; Leinonen, Ville; Hakumäki, Juhana; Laun, Frederik; Topgaard, Daniel; Sierra, Alejandra, 2026, Frontiers in neuroscience, 20, 1716255. A1 Journal article (refereed), original research -
Frequency-dependent diffusion tensor distribution imaging in the evaluation of ischemic stroke
Gröhn, Sara; Naranjo, Ángela; Narvaez, Omar; Yon, Maxime; Buz-Yalug, Buse; Blanco, Santos; Topgaard, Daniel; Martinez-Lara, Esther; Ángeles Peinado, Ma; Tohka, Jussi; Sierra, Alejandra, 2026, Neuroscience Informatics, 6, 2, 100270. A1 Journal article (refereed), original research -
Frequency-dependence in multidimensional diffusion–relaxation correlation MRI of the brain: Overfitting or meaningful parameter?
Yon, Maxime; Narvaez, Omar; Martin, Jan; Jiang, Hong; Bernin, Diana; Forssell-Aronsson, Eva; Laun, Frederik; Sierra, Alejandra; Topgaard, Daniel, 2025, Imaging neuroscience, 3, 1-25. A1 Journal article (refereed), original research -
Frequency‐Dependent Diffusion–Relaxation Distribution MRI: Scan–Rescan Reproducibility Ex Vivo and Caveats
Or, Pak Shing Kenneth; Yon, Maxime; Narvaez, Omar; Manninen, Eppu; Malm, Tarja; Sierra, Alejandra; Topgaard, Daniel; Benjamini, Dan, 2025, Nmr in biomedicine, 39, 2, 1-16. A1 Journal article (refereed), original research -
Multimodal approach to characterize surgically removed epileptogenic zone from patients with focal drug‐resistant epilepsy: From operating room to wet lab
Kyyriäinen, Jenni; Della Pietra, Adriana; Torkamani‐Azar, Mastaneh; Gómez‐Budia, Mireia; Abushik, Polina; Novosolova, Nataliia; Eronen, Henri; Narvaez, Omar; Paasonen, Ekaterina; Lezhneva, Vera; Pelkonen, Anssi; Saveleva, Liudmila; Huotarinen, Antti; Belevich, Ilya; Jokitalo, Eija; Kuopio Epilepsy Center Epilepsy Surgery Group; Jutila, Leena; Rauramaa, Tuomas; Immonen, Arto; Leinonen, Ville; Tohka, Jussi; Gröhn, Olli; Kälviäinen, Reetta; Malm, Tarja; Sierra, Alejandra, 2025, Epilepsia open, 11, 1, 347-362. A1 Journal article (refereed), original research -
In vivo rat brain mapping of multiple gray matter water populations using nonparametric D(ω)‐R1‐R2 distributions MRI
Yon, Maxime; Narvaez, Omar; Topgaard, Daniel; Sierra, Alejandra, 2024, Nmr in biomedicine, 38, 1, e5286. A1 Journal article (refereed), original research -
Nonparametric distributions of tensor-valued Lorentzian diffusion spectra for model-free data inversion in multidimensional diffusion MRI
Narvaez, Omar; Yon, Maxime; Jiang, Hong; Bernin, Diana; Forssell-Aronsson, Eva; Sierra, Alejandra; Topgaard, Daniel, 2024, Journal of chemical physics, 161, 8, 084201. A1 Journal article (refereed), original research -
Orientation selective stimulation with tetrahedral electrodes of the rat infralimbic cortex to indirectly target the amygdala
Gureviciene, Irina; Laakso, Hanne; Narvaez, Omar; Paasonen, Ekaterina; Lehto, Lauri; Gurevicius, Kestutis; Mangia, Silvia; Michaeli, Shalom; Gröhn, Olli; Sierra, Alejandra; Tanila, Heikki, 2023, Frontiers in neuroscience, 17, 1147547. A1 Journal article (refereed), original research -
A multiscale tissue assessment in a rat model of mild traumatic brain injury
San Martín Molina, Isabel; Fratini, Michela; Campi, Gaetano; Burghammer, Manfred; Grünewald, Tilman A; Salo, Raimo A; Narvaez, Omar; Aggarwal, Manisha; Tohka, Jussi; Sierra, Alejandra, 2022, Journal of neuropathology and experimental neurology, 82, 1, 71-83. A1 Journal article (refereed), original research -
Massively Multidimensional Diffusion-Relaxation Correlation MRI
Narvaez, Omar; Svenningsson, Leo; Yon, Maxime; Sierra, Alejandra; Topgaard, Daniel, 2022, Frontiers in physics, 9, 793966. A1 Journal article (refereed), original research