Premium
Noninvasive CBV Measurements During Epilepsy Using Multichannel NIRS
Author(s) -
Watanabe Eiju,
Mayanagi Yoshiaki
Publication year - 1998
Publication title -
epilepsia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.687
H-Index - 191
eISSN - 1528-1167
pISSN - 0013-9580
DOI - 10.1111/j.1528-1157.1998.tb01950.x
Subject(s) - ictal , epilepsy , temporal lobe , electroencephalography , medicine , focus (optics) , nuclear medicine , cerebral blood volume , neuroscience , psychology , cardiology , cerebral blood flow , physics , optics
Purpose : Cerebral blood volume (CBV) was measured noninvasively during an epileptic seizure to localize the focus using near‐infrared spectroscopy (NIRS). Methods : In nine patients with intractable epilepsy (eight temporal and one parietal lobe), seizures were induced by bemegride. CBV was measured with an 8‐channel NIRS (1 Hz). The ictal single‐photon‐emission computed tomography (SPECT) also was evaluated. Results : In all of the cases, CBV increased for 20–50 s on the same side as the focus within 2 s after the onset of seizures, compatible with the EEG and ictal SPECT findings. Conclusions : NIRS is valid for the localization of the focus in epilepsy.