Proefschrift_vd_Beek

586

55 plotted per depth significance level ( p group, this basal w percentage of the a T-Levels, M-Levels Contrary to the that the contacts in nerve fibers in the the P-group tend t NP-group, although cant ( p 0.3) (Fig. T-levels, especially prevent small differ significant levels. A levels vary greatly, along the array sho group. The T-levels o differences along t thresholds basally. are much more prof sharp increase of the array (as seen in F T-level (T-level at co at contacts 14 and 1 icantly larger than The differences in b and P are also sign 3 at the same cochlear were converted to distances of the elec for 10 depth ranges with the findings p distances of the elec depth ranges differ group and the NP-g 60 to 120: p 0.01; the distances at th significantly ( p ranges in the cochl electrode contacts of similar. position of the NPd- a location more com However, the most was located signific P-group ( p 0.01). A tion depth did not with speech percepti To compare the r

Fig. 5. Radial distances of center of electrode contacts to the modiolus, shown per electrode contact (A) and per depth range (B). Significant differences between the P- and NP- groups are marked (* p < 0.05; ** p < 0.01). Dashed lines reflect the combined contribution to the measured distances of the space between the center and the surface of the contacts, the silicon blebs, located medially on the array between adjacent electrodes, and the average standard error. C, Phoneme scores after 1 yr of follow-up of the positioner group (P) and the nonpositioner-group (NP) plotted against the insertion depth of the most apical electrode contact. The lack of correlation is shown by trend lines, R 2 and p values. The number of patients in the subgroups is shown for electrode contacts and for the depth ranges in Table 3. Fig. 5. Radial distances of center of electrode contacts to the modiolus, shown per electrode contact (A) and per depth range (B). Significant differences between the P- and NP- groups are marked (* p < 0.05; ** p < 0.01). Dashed lines reflect the combined contribution to the measured distances of the space between t e center and the surf ce of the contacts, the silicon blebs, located m dially n the a ray between adjacent electrodes, and the average standard error. C, Phoneme scores after 1 yr of follow-up of the positioner group (P) and the nonpositioner-group (NP) plotted against the insertion depth of the most apical electrode contact. The lack of correlation is shown by trend lines, R 2 and p values. The number of patients in the subgroups is shown for electrode contacts and for the depth ranges in Table 3.