More articles from Brain
- Cognitive Impairment in Mild Traumatic Brain Injury: A Longitudinal Diffusional Kurtosis and Perfusion Imaging Study
DTI, diffusional kurtosis, and arterial spin-labeling were used in an attempt to detect abnormalities in 20 patients shortly after mild traumatic brain injury. These patients were also evaluated for attention, concentration, executive functioning, memory, learning, and information processing. At 1 and 9 months after injury, all patients showed significant abnormalities in gray and white matter by using all techniques and thus these methods may be useful in investigating cognitive impairment after brain injury.
- Diagnostic Accuracy of PET for Recurrent Glioma Diagnosis: A Meta-Analysis
These authors compared the diagnostic accuracy of PET with that of CT and MRI in the diagnosis of recurrent glioma in 26 previously published articles. PET studies with either FDG or carbon methionine were obtained once glioma recurrence was suspected on CT and/or MRI. Diagnostic accuracies were heterogeneous and studies did not compare PET with other imaging modalities. Despite these limitations, PET with both tracers appears to have a moderately good accuracy as an add-on test for diagnosing recurrent glioma.
- Traumatic Intracranial Hematomas: Prognostic Value of Contrast Extravasation
Contrast extravasation in hematomas predicts their growth and thus these authors assessed the prognostic value of this sign. Sixty patients with cerebral hematomas received CTA and/or perfusion CT within 24 hours of admission and then a follow-up CT at 72 hours. Fifty percent of patients showed contrast extravasation and this finding predicted poor in-hospital outcome. Recognition of contrast extravasation achieved a near perfect interobserver agreement.

