Abnormal intravoxel cerebral blood flow heterogeneity in human ischemic stroke determined by dynamic susceptibility contrast magnetic resonance imaging
| Autor: | Lauri Soinne, Aki Kangasmäki, Johanna Helenius, Sauli Savolainen, Oili Salonen, Jussi Perkiö, Turgut Tatlisumak, Hannu J. Aronen, Markku Kaste, Leif Østergaard, S. Martinkauppi |
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| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
Male
Ischemia Contrast Media Magnetic resonance angiography 030218 nuclear medicine & medical imaging Brain Ischemia Brain ischemia 03 medical and health sciences 0302 clinical medicine medicine Humans Stroke Aged Advanced and Specialized Nursing medicine.diagnostic_test business.industry Magnetic resonance imaging Blood flow Middle Aged medicine.disease 3. Good health Diffusion Magnetic Resonance Imaging Cerebral blood flow Cerebrovascular Circulation Female Neurology (clinical) Cardiology and Cardiovascular Medicine business Nuclear medicine Perfusion 030217 neurology & neurosurgery Magnetic Resonance Angiography circulatory and respiratory physiology |
| Zdroj: | Perkiö, J, Soinne, L, Østergaard, L, Helenius, J, Kangasmäki, A, Martinkauppi, S, Salonen, O, Savolainen, S, Kaste, M, Tatlisumak, T & Aronen, H J 2005, ' Abnormal intravoxel cerebral blood flow heterogeneity in human ischemic stroke determined by dynamic susceptibility contrast magnetic resonance imaging ', Stroke; a journal of cerebral circulation, vol. 36, no. 1, pp. 44-9 . https://doi.org/10.1161/01.STR.0000150495.96471.95 |
| DOI: | 10.1161/01.STR.0000150495.96471.95 |
| Popis: | Background and Purpose— The determination of cerebral blood flow heterogeneity (FH) by dynamic susceptibility contrast (DSC) magnetic resonance imaging has recently been proposed as a tool to predict final infarct size in acute stroke. In this study, we describe the evolution of FH during the first week as well as its correlation to the patients’ clinical status. Methods— Ten patients with ischemic stroke were studied with DSC MRI and diffusion-weighted imaging in hyperacute ( Results— All patients showed infarct growth, judged by diffusion-weighted imaging, during the week with simultaneous decrease in the sizes of FH, CBV, CBF, and MTT abnormalities. The FH abnormality was shown to be larger than CBV and CBF abnormalities at the hyperacute phase and 24 hours, but smaller than MTT abnormality in all 3 imaging sessions. The sizes of hyperacute FH, CBV, CBF, and MTT abnormalities correlated well with infarct size at 24 hours and at 1 week. Additionally, FH was the only perfusion parameter that correlated with the clinical score. Conclusions— FH predicts infarct size equally well with the other perfusion parameters but is superior in correlation with the clinical score. FH can easily be incorporated to hyperacute stroke imaging without additional efforts. |
| Databáze: | OpenAIRE |
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