Table 3 Within-software package intra- and inter-rater comparisons – Euclidean distances between the estimated positions of the active contacts, differences between Polar angles Θ and Φ.

From: Precision of post-operative localization of deep brain stimulation electrodes

Software

Lead - DBS

SureTune4

BrainLab Elements

Rater

Same

Different

Same

Different

Same

Different

Euclidean Distance [mm]

0.676 (0.299–1.63)

0.981 (0.455–1.86)

1.08 (0.063–2.16)

1.68 (0.942–3.66)

0.681 (0.331–1.35)

1.07 (0.47-2.0)

θ [°]

1.26 (0.31–4.71)

2.39 (0.61–5.69)

1.64 (0.24–4.85)

2.74 (0.36–7.65)

1.39 (0.40–4.01)

1.83 (0.28–7.41)

φ [°]

0.97 (0.12–2.26)

1.39 (0.42–3.35)

1.03 (0.29–2.57)

3.32 (0.87–8.29)

0.7 (0.13–1.75)

0.63 (0.16–2.28)

Cases over the threshold [%]

2%

2%

4%

15%

0%

2%

p value (FDR corrected)

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

  1. Presented as medians (10th − 90th percentile). Furthermore, the percentage of subjects with distances over the predetermined threshold of 2.99 mm - 1/2 of the width of the subthalamic nucleus is presented. P values after FDR correction of equivalence tests are provided.
  2. FDR – false discovery rate.