[Impedance between modiolus and different walls of scala tympani].
OBJECTIVE
To compare the impedance between the modiolus and the inner wall of scala tympani with that between the modiolus and the outer wall of scala tympani.


METHODS
The impedances between the modiolus and the inner wall of scala tympani and the impedance between the modiolus and the outer wall of scala tympani were measured, calculated and compared under different stimulating rates 0.1, 1.0, 10.0 kHz.


RESULTS
The impedance between the modiolus and the inner wall of scala tympani is less than that between the modiolus and the outer wall of scala tympani (P < 0.05).


CONCLUSIONS
To effectively stimulate the residual neurons in the spiral ganglion, the electrodes should be kept close to the inner wall of scale tympani.
Du
Qiang
Q
Department of Otorhinolaryngology, Eye and Otolaryngology Hospital of Fudan University, Shanghai, 200031, China.
Wang
Zhengmin
Z
D000328:Adult; D003051:Cochlea / Q000502:physiology; D003054:Cochlear Implants; D017097:Electric Impedance; D004566:Electrodes; D006801:Humans; D012533:Scala Tympani / Q000502:physiology*; D013136:Spiral Ganglion; D013701:Temporal Bone / Q000502:physiology