Tus naj npawb ntawm cov koob helical (xws li, koob electrodes rau EEG lossis EMG kuaj) siv feem ntau yog nyob ntawm cov ntawv thov tshwj xeeb thiab qhov chaw raug saib xyuas.
Hauv kev saib xyuas EEG, cov electrodes feem ntau yog muab tso rau raws li International 10-20 System lossis lwm qhov chaw muab hluav taws xob.
Tus txheej txheem 10-20 EEG feem ntau xav tau 21 electrodes, tab sis tus lej siv tau tuaj yeem ntsuas qis lossis nce nyob ntawm qhov ntsuas ntawm qhov ntsuas.
Rau Electroencephalography (EEG): Yog siv cov ntsia hlau-needle electrodes, lawv feem ntau yog teeb tsa raws li tus naj npawb ntawm cov qauv electrode tso txoj haujlwm (xws li, 10-20 system).
Feem ntau 19-21 electrodes yog siv nyob rau hauv ib zaug.Rau electromyography (EMG): ib tug me me yuav siv tau, feem ntau yog 1 mus rau ob peb nyob ntawm seb cov leeg nqaij los yog paj hlwb ntsuas.
Hauv kev ntsuam xyuas EEG, yog siv cov koob electrodes, tus naj npawb ntawm cov khoom siv pov tseg feem ntau txiav txim siab raws li EEG electrode qhov chaw.
Ib qho kev siv feem ntau yog International 10-20 system, uas yuav tsum tau 21 electrodes (suav nrog cov siv electrode) raws li tus qauv. Txawm li cas los xij, qhov kev siv tiag tiag tuaj yeem sib txawv raws li kev tshawb nrhiav xav tau:
Routine EEG Testing: Ib tus qauv EEG yuav siv 19-21 electrodes, nyob ntawm seb qhov kev tso kawm electrode.
Kev saib xyuas ntev lossis yees duab EEG: Ntau cov electrodes tej zaum yuav raug siv los ua kom cov kev pab cuam ntawm kev saib xyuas.
Kev txo qis EEG: Piv txwv li, tsawg dua electrodes tej zaum yuav raug siv nyob rau hauv ib qho kev xeem uas tsom rau ib cheeb tsam xwb.
Feem ntau, tus naj npawb ntawm cov ntsia hlau-koob electrodes siv sib raug rau tus naj npawb ntawm cov pa EEG thaj electrodes.
Tus naj npawb ntawm cov electrodes siv kuj yuav raug txo raws li tus kws kho mob qhia rau kev soj ntsuam hauv cheeb tsam ntau dua lossis cov kev xav tau tshwj xeeb.