Key result
Intraoperative X-ray detects clinically relevant brain shift linked to >8 ml intracranial air during DBS.
Why the study?
Brain shift effects after implantation of the first electrode in bilateral DBS lead implantation may cause misallocation of the second electrode, but intraoperative X-ray feasibility for indirect detection of brain shift was unclear.
Can intraoperative X-ray imaging indirectly detect brain shift effects subsequent to implantation of the first electrode in bilateral deep brain stimulation?
Population
25 patients undergoing bilateral DBS lead implantation
Comparison
Intraoperative X-ray imaging vs MRI before and after first electrode implantation
Design
Observational cohort study
Follow-up
Intraoperative
Authors
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Intraoperative X-ray may flag brain shift risk during bilateral DBS; hypothesis-generating and should not yet change practice.
Observational (n=25)
Can intraoperative X-ray imaging indirectly detect brain shift effects subsequent to implantation of the first electrode in bilateral deep brain stimulation?
A lack of X-ray signal changes caused by intracranial air invasion during DBS lead implantation indicates a lack of clinically relevant brain shift, potentially avoiding misallocation of the second electrode.
Hunsche et al. (2009) conducted an observational in Bilateral deep brain stimulation (DBS) lead implantation (n=25). Intraoperative X-ray imaging was evaluated on Brain shift effects and intracranial air volume. Intraoperative X-ray imaging detected significant absorption changes induced by intracranial air volume >8 ml, indicating clinically relevant brain shift during bilateral DBS lead implantation.
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