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Quantification of brain edema and hemorrhage by MRI after experimental traumatic brain injury in rabbits predicts subsequent functional outcome
- Source :
- Neurological Sciences. 33:731-740
- Publication Year :
- 2011
- Publisher :
- Springer Science and Business Media LLC, 2011.
-
Abstract
- We use multiple MRI modalities to measure cerebral edema and intracerebral hemorrhage quantitatively after TBI in rabbits and to acquire the early prognostic MRI information. Multiple MRI modalities (DCE-MRI, DWI and SWI) were used to assess cerebral edema and intracerebral hemorrhage quantitatively at different time points within a month after TBI in 15 rabbits. The functional outcomes were evaluated at 1 and 30 days after TBI. The relationships between the quantitative MRI information at different time points and functional outcome at 30 days were analyzed. The volume transfer coefficient (K (trans)) in the focal lesion area and the perifocal lesion area at the acute phase correlated with the functional outcome at 30 days (p < 0.05). The apparent diffusion coefficient (ADC) value at 7 days in the focal lesion area correlated with the functional outcome at 30 days (p < 0.01) and had a trend to correlate at 3 days (p = 0.08). In the perifocal lesion area, the ADC values at both acute and subacute phase correlated with the functional outcome at 30 days (p < 0.05). The volume of hemorrhage correlated with functional outcome at 30 days (p < 0.05). The cerebral edema assessed by DCE-MRI (K (trans)) and DWI (ADC) and intracerebral hemorrhage assessed by SWI may have predictive values.
- Subjects :
- medicine.medical_specialty
Time Factors
Traumatic brain injury
Brain Edema
Hemorrhage
Dermatology
Statistics, Nonparametric
Cerebral edema
Lesion
Image Processing, Computer-Assisted
medicine
Animals
Effective diffusion coefficient
Intracerebral hemorrhage
Trauma Severity Indices
medicine.diagnostic_test
business.industry
Brain
Magnetic resonance imaging
General Medicine
medicine.disease
Magnetic Resonance Imaging
Disease Models, Animal
Psychiatry and Mental health
Brain Injuries
Susceptibility weighted imaging
Rabbits
Neurology (clinical)
Radiology
medicine.symptom
business
Diffusion MRI
Subjects
Details
- ISSN :
- 15903478 and 15901874
- Volume :
- 33
- Database :
- OpenAIRE
- Journal :
- Neurological Sciences
- Accession number :
- edsair.doi.dedup.....f4a811c8d39d66fd6fe8c03f9cdb77bb