|Implant type: CN: Cochlear Nucleus CI512; ME: Medel Sonata Ti; AB: Advanced Bionics Hi Res 90.|
Artefacts: 1: no artefacts and 6: evaluation impossible due to multiple artefacts.
Inv. I, II: investigator 1, investigator 2.
Full insertion +: all electrodes within cochlea; −: one or more electrodes outside cochlea.
Tip fold over +: tip of electrode is folded in the apical part; −: tip of electrode array is straight.
Separation of electrodes: +: single electrodes are clearly visible; −: no differentiation of single electrodes due to artefacts.
Position of facial nerve in projection to cochlea: +: clearly visible; −: not possible.
Differentiation of scalae tympani and vestibuli: +: clearly visible; /not possible.
Visualization of osseous lamina spiralis: +: clearly visible; −: not possible.