Neurological research
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Neurological research · Jan 2006
Comparative StudyQuantitative evaluation for secondary injury to perihematoma of hypertensive cerebral hemorrhage by functional MR and correlation analysis with ischemic factors.
To analyse quantitatively for the secondary injury to the perihematoma region of intracerebral hemorrhage (ICH) patients by functional MR imaging technique. ⋯ We have concluded that rCBV and MTT of perihematoma region decreased remarkably compared with the contralateral side, and the decline would last over 3 weeks. Quantitative research suggested edema intensity is closely related with rCBV. We believe that the reduced regional blood flow of perihematoma contributes to the secondary ischemic injury of perihematoma tissue. However, the peak of edema would appear later than the onset of the peak of ischemia, it suggests that edema surrounding the hematoma is not only the result from the single ischemic factor, but also results from multiple disadvantage mechanisms.
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Neurological research · Jan 2006
Comparative StudyStudy on the pathogenic mechanism of Broca's and Wernicke's aphasia.
To study the mechanisms of aphasia by observing cerebral blood flow and metabolism changes in language functional areas of the brain using imaging, in order to develop a language rehabilitation plan for aphasia patients. ⋯ Broca's or Wernicke's area of aphasia patients exhibits hypoperfusion and hypometabolism, indicating that they might be the mechanisms of Broca's or Wernicke's aphasia.