Table 1: Patients and evaluation parameters of imaging.

CodeAgeImplant typeArtefact (1–6) Full insertionTip fold overSeparation of electr. Facial nerveDifferentiation of scalae
Inv I/Inv II

PW4960CN43+?
KE3673CN22++
MG5752CN23+?
LE4663CN33+?
PB4267CN22++
WF5257ME32+++
DM7732ME43++?
UA7435CN23+?
PU4762CN33+?
OG5752AB33++++
DU6247ME22++
BN7733CN22++
OK5357CN34++
KD6743CN22+?
FM5060AB33++
WM6545CN22++
DR6248CN22++
LS7139CN34++
SP6743CN23++
BR6347AB23++
GH5060CN33++
ÖT6743CN12+++
SM3971CN23+?
HA5159CN34++
CE3971CN23++
WJ7634CN33+?
GJ6248CN44++
ZT5654CN12++
TK7535CN22+++
WJ4070AB22++?
PD8822CN12+?+

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.