Recovery of spontaneous neuromagnetic activity after extracranial-intracranial bypass in a patient with middle cerebral artery occlusion.
case_report · Level V
Where this comes from
- Record sourced from PubMed, PMID 19015808.
- Also identified by DOI 10.1007/s00701-008-0156-6.
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Abstract
Cerebral blood flow and neuromagnetic activity were measured using (123)I-iodoamphetamine-single photon emission computed tomography (IMP-SPECT) and magnetoencephalography (MEG), before and after extracranial-intracranial (EC-IC) bypass surgery in a 55-year-old woman with unilateral middle cerebral artery occlusion that occurred with intraventricular haemorrhage. Frequency analysis of slow waves measured on MEG was performed using an adaptive beam-former method. Distribution of delta waves was observed pre-operatively corresponding to areas of cerebral hypo-perfusion as confirmed by IMP-SPECT but disappeared post-operatively with improvements in cerebral blood flow. Imaging of slow-wave distributions with MEG may represent a new technique for identifying cerebral ischaemia.
Medical subject headings
- Brain
- Cerebral Revascularization
- Cerebrovascular Circulation
- Infarction, Middle Cerebral Artery