Article Figures & Data
Figures
- Fig 1.
A, Visualization of 3D directional electrode models in a 3D reconstruction of rotational fluoroscopy imaging. The blue line (in-plane) indicates the detected orientation in the axial plane based on the iron sights method. The orange line originating out of the marker indicates the lead orientation. B, The same scene from a lateral view. The in-plane orientation and marker orientation form a rectangular triangle (red transparent) with the right angle at the marker. C, Fusion of rotational fluoroscopy 3D reconstruction and the CT scan in Brainlab Elements (Brainlab, Munich, Germany).
- Fig 2.
A, A directional lead embedded in an acrylic glass cylinder (ground truth). This model was fixed in a stereotactic Leksell G frame (Elekta Instruments) and oriented visually and with stereotactic fluoroscopy with the marker exactly facing anteriorly. B, Fluoroscopy was aligned with the stereotactic frame. C, The arc angle (lead rotation in the coronal plane) was changed to polar angles of 0°–60° in steps of 10°. D, The ring angle (lead rotation in the sagittal plane) was changed, resulting in polar angles of 0°–90° in steps of 10°. Digital x-ray and 3D fluoroscopy were performed for each setting to investigate in which angles the overlap of the gaps between the electrode segments (iron sights) is visible.
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