Fig. 5

CT image of cochlea after using SEMAR combined with MPR. In the SEMAR CT image, the electrode is clearly located in the cochlea, it is difficult to evaluate whether the electrode is located in the scala tympani (a, c). Combining SEMAR with MPR enables clarification that the electrode is close to the cochlear wall. However, there is a clear spatial distance between the axes, thus the electrode is determined to be located in the scala tympani (b, d). The arrows indicate the electrode position