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focus
(redirected from epileptogenic focus)

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SPECT or PET imaging can add value in settings such as, * Discordant MRI and EEG, * Normal MRI where precise anatomic localization of an epileptogenic focus is difficult, and * When multiple anatomic lesions are seen on MRI and the identification of an offending epileptogenic focus could help limit the extent of surgery.
During chronic DBS, the stimulation is applied constantly to the epileptogenic focus, regardless of the area's own discharge.
At the time, the researchers surmised that the noise may have resulted from either (1) vibration of the vocal cords as air is exiting from the lungs; (2) vibration of upper airway tissues above the point of the vocal cords as air is exiting from the lungs; or (3) as a consequence of a brain tumor, epileptogenic focus, or other lesion in brain areas that control respiration.
 
 
 
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