Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Joanna K. Huttunen"'
Publikováno v:
Magnetic Resonance in Medicine. 78:1136-1146
Purpose Anesthesia is a major confounding factor in functional MRI (fMRI) experiments attributed to its effects on brain function. Recent evidence suggests that parameters obtained with resting-state fMRI (rs-fMRI) are coupled with anesthetic depth.
Autor:
Marko Vauhkonen, Joanna K. Huttunen, Ville Kolehmainen, Ville-Veikko Wettenhovi, Olli Gröhn, Mikko I. Kettunen
Publikováno v:
2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC).
We propose a state estimation approach, enhanced with prior information, for dynamic magnetic resonance imaging (MRI). In state estimation the time series of system states are estimated, utilizing the observation and state evolution models and the dy
Autor:
Artem Shatillo, Johanna Närväinen, Markus M. Forsberg, Olli Gröhn, Jaakko Paasonen, Raimo A. Salo, Joanna K. Huttunen
Publikováno v:
Paasonen, J, Salo, R A, Shatillo, A, Forsberg, M M, Närväinen, J, Huttunen, J K & Gröhn, O 2016, ' Comparison of seven different anesthesia protocols for nicotine pharmacologic magnetic resonance imaging in rat ', European Neuropsychopharmacology, vol. 26, no. 3, pp. 518-531 . https://doi.org/10.1016/j.euroneuro.2015.12.034
Pharmacologic MRI (phMRI) is a non-invasive in vivo imaging method, which can evaluate the drug effects on the brain and provide complementary information to ex vivo techniques. The preclinical phMRI studies usually require anesthesia to reduce the m
Autor:
Carmen Barba, Gabriella Colicchio, Alejandra Sierra Lopez, Joanna K. Huttunen, Olli Gröhn, Asla Pitkänen, Xavier Ekolle Ndode-Ekane, Juha-Pekka Niskanen, Artem Shatillo, Antti M. Airaksinen
Publikováno v:
Journal of neurotrauma. 35(22)
Diagnosis of ongoing epileptogenesis and associated hyperexcitability after brain injury is a major challenge. Given that increased neuronal activity in the brain triggers a blood oxygenation level-dependent (BOLD) response in functional magnetic res
Autor:
Joanna K. Huttunen, Ville-Veikko Wettenhovi, Olli Gröhn, Marko Vauhkonen, Ville Kolehmainen, Mikko I. Kettunen
We propose a state estimation approach for functional magnetic resonance imaging (fMRI). In state estimation, time-dependent image reconstruction problem is modeled by separate state evolution and observation models, and the objective is to estimate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86df8df8fb2674bbca5e7cf0e8d65d72
https://erepo.uef.fi/handle/123456789/5199
https://erepo.uef.fi/handle/123456789/5199
Autor:
Noora Huusko, Joanna K. Huttunen, Olli Gröhn, Asla Pitkänen, Riikka Immonen, Alejandra Sierra, Samuli Kemppainen, Tamuna Bolkvadze, Xavier Ekolle Ndode-Ekane
Publikováno v:
Epilepsy & Behavior. 38:19-24
Traumatic brain injury (TBI) can cause a myriad of sequelae depending on its type, severity, and location of injured structures. These can include mood disorders, posttraumatic stress disorder and other anxiety disorders, personality disorders, aggre
Autor:
Alejandra Sierra, Joanna K. Huttunen, Pasi A. Karjalainen, Jari Nissinen, Olli Gröhn, Antti M. Airaksinen, Asla Pitkänen, Juha-Pekka Niskanen
Publikováno v:
Journal of Neurotrauma. 30:546-556
The present study was designed to test a hypothesis that functional magnetic resonance imaging (fMRI) can be used to monitor functional impairment and recovery after moderate experimental traumatic brain injury (TBI). Moderate TBI was induced by late
Autor:
Joanna K. Huttunen, Jukka Jolkkonen, Kristina Kuptsova, Saara Parkkinen, Francisco J. Ortega, Ina M. Tarkka
Publikováno v:
Stroke Research and Treatment
Stroke Research and Treatment, Vol 2013 (2013)
Stroke Research and Treatment, Vol 2013 (2013)
The availability of proper tests for gait evaluation following cerebral ischemia in rats has been limited. The automated, quantitative CatWalk system, which was initially designed to measure gait in models of spinal cord injury, neuropathic pain, and
Publikováno v:
Magnetic resonance in medicine. 78(3)
Anesthesia is a major confounding factor in functional MRI (fMRI) experiments attributed to its effects on brain function. Recent evidence suggests that parameters obtained with resting-state fMRI (rs-fMRI) are coupled with anesthetic depth. Therefor
Autor:
Asla Pitkänen, Olli Gröhn, Joanna K. Huttunen, Shahryar K. Hekmatyar, Risto A. Kauppinen, Juha-Pekka Niskanen, Neil P. Jerome, Antti M. Airaksinen
Publikováno v:
Epilepsia. 53:1245-1253
Summary Purpose: To investigate how kainic acid–induced epileptiform activity is related to hemodynamic changes probed by blood oxygenation level–dependent functional magnetic resonance imaging (BOLD fMRI). Methods: Epileptiform activity was indu