Alejandra Sierra Lopez
Research Director
A.I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences
Research groups
Projects
Publications
72/72 items-
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 -
Optimising sample preparation to enhance contrast-to-noise ratio in X-ray phase contrast tomography white matter (WM) imaging of the central nervous system
Fratini, Michela; Massimi, Lorenzo; Brun, Francesco; Batey, Darren; Bukreeva, Inna; Mittone, Alberto; Bravin, Alberto; Longo, Elena; Tromba, Giuliana; Giove, Federico; Cipiccia, Silvia; Sierra, Alejandra, 2025, Frontiers in physics, 13, 1479573. B1 Non-refereed journal articles -
Segment Anything for Dendrites from Electron Microscopy
Zhuo, Zewen; Belevich, Ilya; Leinonen, Ville; Jokitalo, Eija; Malm, Tarja; Sierra, Alejandra; Tohka, Jussi, 2025, The Sixth IEEE International Image Processing, Applications and Systems Conference (IPAS'6) - Conference Proceedings, 1-6, . A4 Conference proceedings -
Traffic-related diesel pollution particles impair the lysosomal functions of human iPSC-derived microglia
Ohtonen, Sohvi; Jäntti, Henna; Giudice, Luca; Mohamed, Ahmed; Shakirzyanova, Anastasia; Závodná, Táňa; Belevich, Ilya; Yan, Hong; Sabogal-Guáqueta, Angélica María; Saveleva, Liudmila; Väänänen, Mari-Anna; Rillo-Albert, Ashley; Perciballi, Elisa; Ferrari, Daniela; Tervo, Minna-Mari; Gómez-Budia, Mireia; Krejčík, Zdeněk; Aakko-Saksa, Päivi; Koistinaho, Jari; Lehtonen, Šárka; Kanninen, Katja M.; Topinka, Jan; Jokitalo, Eija; Sierra, Alejandra; Schmidt, Martina; Dolga, Amalia M.; Jalava, Pasi I.; Ko, 2025, Environment international, 199, 109467. A1 Journal article (refereed), original research -
Diffusion of brain metabolites highlights altered brain microstructure in type C hepatic encephalopathy: a 9.4 T preliminary study
Mosso, Jessie; Briand, Guillaume; Pierzchala, Katarzyna; Simicic, Dunja; Sierra, Alejandra; Abdollahzadeh, Ali; Jelescu, Ileana O; Cudalbu, Cristina, 2024, Frontiers in neuroscience, 18, 1344076. 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, 2025; 38, 1, e5286. A1 Journal article (refereed), original research -
No-Clean-Reference Image Super-Resolution: Application to Electron Microscopy
Khateri, Mohammad; Ghahremani, Morteza; Sierra, Alejandra; Tohka, Jussi, 2024, IEEE Transactions on computational imaging, 10, 1094-1110, . 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 -
Volume electron microscopy in injured rat brain validates white matter microstructure metrics from diffusion MRI
Coronado-Leija, Ricardo; Abdollahzadeh, Ali; Lee, Hong-Hsi; Coelho, Santiago; Ades-Aron, Benjamin; Liao, Ying; Salo, Raimo A.; Tohka, Jussi; Sierra, Alejandra; Novikov, Dmitry S.; Fieremans, Els, 2024, Imaging neuroscience, 2, 1-20, . A1 Journal article (refereed), original research -
Diffusion MRI approaches for investigating microstructural complexity in a rat model of traumatic brain injury
Chary, Karthik; Manninen, Eppu; Claessens, Jade; Ramirez-Manzanares, Alonso; Gröhn, Olli; Sierra, Alejandra, 2023, Scientific reports, 13, 2219. A1 Journal article (refereed), original research