Journal of neuroimaging : official journal of the American Society of Neuroimaging
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The integrity of the fornix using diffusion tensor imaging (DTI) in adolescent participants with acute mild traumatic brain injury (mTBI) compared to a demographically matched control group was examined. Fractional anisotropy (FA) in the fornix was elevated in the mild traumatic brain injured group. ⋯ A relation was found between lower performance on cognitive tasks and higher FA. The potential role of fornix injury as a basis of memory and processing speed deficits in mTBI is discussed.
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To investigate the potential of the ultrasound-based evaluation of the optic nerve sheath in a patient with spontaneous intracranial hypotension due to cervical cerebrospinal fluid (CSF) leakage. ⋯ The ultrasound-based evaluation of the optic nerve sheath may be helpful in detecting CSF hypovolemia and for determination of treatment effects. This report should be seen as a basis for future investigations on the sonographic assessment of the optic nerve sheath in diagnosis and treatment of intracranial hypotension.
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Controlled Clinical Trial
Arterial blood gas analysis of samples directly obtained beyond cerebral arterial occlusion during endovascular procedures predicts clinical outcome.
Real-time intra-procedure information about ischemic brain damage degree may help physicians in taking decisions about pursuing or not recanalization efforts. ⋯ Direct local blood sampling from ischemic brain is feasible during endovascular procedures in acute stroke patients. A gradient in oxygenation parameters was demonstrated between pre- and post-occlusion blood samples. ABG information may be used to predict clinical outcome and help in decision making in the angio-suite.
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Hyperpneumatization of the temporal bone with extension into the occipital bone and even the parietal bones is a rare condition. We report a case in which the patient suffered periodically from a palpable mass in the parietal-occipital region which originated from extensive occipital bone pneumatization. Computed tomography examination revealed extensive temporal and occipital pneumatization and subperiosteal pneumatoceles, which was corrected by surgery.
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Case Reports
A correlation between fractional anisotropy variations and clinical recovery in spinal cord infarctions.
To describe diffusion-weighted imaging and diffusion tensor imaging variations in spinal cord infarctions. ⋯ FA values could be an interesting prognosis marker in spinal cord ischemia, which needs to be confirmed by a larger study.