2018
DOI: 10.4142/jvs.2018.19.1.137
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Magnetic resonance imaging characteristics of ischemic brain infarction over time in a canine stroke model

Abstract: This study describes magnetic resonance imaging (MRI) results and changes in lateral ventricular size over time in a canine ischemic stroke model. T1- and T2-weighted (T1W, T2W) imaging and fluid-attenuated inversion recovery (FLAIR) sequence MRI were performed at 3 h and 3, 8, and 35 days after brain infarct induction. Diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC) mapping were performed at 8 and 35 days. A total of 29 brain lesions were induced successfully in 12 of 14 beagle dogs.… Show more

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Cited by 11 publications
(21 citation statements)
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“…One pig with histologic evidence of cerebral infarcts exhibited lesions with similar MRI features as cerebral infarcts reported in dogs (10,11). Histopathologic findings were consistent with areas of necrosis corresponding to areas of presumptive infarcts on MRI.…”
Section: Discussionsupporting
confidence: 66%
“…One pig with histologic evidence of cerebral infarcts exhibited lesions with similar MRI features as cerebral infarcts reported in dogs (10,11). Histopathologic findings were consistent with areas of necrosis corresponding to areas of presumptive infarcts on MRI.…”
Section: Discussionsupporting
confidence: 66%
“…At the time of diagnosis, however, the patient's special diet, relative atypical enhancement pattern and PET-CT results were misleading, and the MRI results were mistaken for cystic parasitosis with central necrosis. It must be noted that liquefactive necrotic area can also exhibit hypointense lesions on DWI with increased ADC, reflecting the process of encephalomalacia with unrestricted water motion (18), but rim enhancement is hardly the feature of A. cantonensis infection, as discussed blow.…”
Section: Discussionmentioning
confidence: 99%
“…Conversely, SNN is thought to persist into the chronic stages of infarction, potentially contributing to poststroke cognitive decline observed in human neurodegenerative disorders such as vascular dementia (28,32,34). Both SNN and partial infarction have demonstrated similar patterns of delayed T1w hyperintensity within the affected tissue when studied in human patients and experimental animal models (13,15,17). Partial infarction and SNN have been identified histopathologically throughout the border zone of tissue infarction and throughout the penumbra on perfusion studies, which relates to the reduced cerebral perfusion throughout this region (35)(36)(37)(38)(39).…”
Section: Discussionmentioning
confidence: 99%