EP 1071368 A1 20010131 - METHOD AND DEVICE FOR DIVERTING AN ELECTROENCEPHALOGRAM IN A NUCLEAR SPIN TOMOGRAPH
Title (en)
METHOD AND DEVICE FOR DIVERTING AN ELECTROENCEPHALOGRAM IN A NUCLEAR SPIN TOMOGRAPH
Title (de)
VERFAHREN UND EINRICHTUNG ZUM ABLEITEN EINES ELEKTROENZEPHALOGRAMMS IM KERNSPINTOMOGRAPH
Title (fr)
PROCEDE ET DISPOSITIF PERMETTANT D'EFFECTUER UN ELECTROENCEPHALOGRAMME DANS UN SCANNER A SPIN NUCLEAIRE
Publication
Application
Priority
- DE 9901149 W 19990416
- DE 19817094 A 19980417
Abstract (en)
[origin: DE19817094A1] During image generation, a circularly polarized alternating radio frequency field (3) is generated to stimulate nuclear resonance. Three switched magnetic gradient fields are generated (1) for location coding of the resonance signal in the three spatial directions. EEG signals from head electrodes (4) are filtered to eliminate disturbances by spectral analysis. Signals of all channels are filtered through a low pass filter and a Butterworth filter at the input of the EEG amplifier (5).
IPC 1-7
IPC 8 full level
A61B 5/04 (2006.01); A61B 5/055 (2006.01)
CPC (source: EP US)
A61B 5/0033 (2013.01 - EP US); A61B 5/055 (2013.01 - EP); A61B 5/30 (2021.01 - EP); A61B 5/4094 (2013.01 - EP); A61B 5/7207 (2013.01 - EP)
Citation (search report)
See references of WO 9953836A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 19817094 A1 19991021; DE 19980653 D2 20010621; EP 1071368 A1 20010131; WO 9953836 A1 19991028
DOCDB simple family (application)
DE 19817094 A 19980417; DE 19980653 T 19990416; DE 9901149 W 19990416; EP 99926257 A 19990416