title: Registered computed tomography images as an alternative to postimplantation magnetic resonance imaging in the assessment of subthalamic electrode placement.
abstract: Magnetic resonance imaging (MRI) after implantation of electrodes in the subthalamic nuclei is currently performed at a number of sites, but a recent adverse incident and changes in MRI technology may heighten safety concerns. In this report, it is demonstrated that given whole-head image data, registration of postimplantation computed tomography to preimplantation MRI can enable verification of the position of electrodes to an accuracy of 2 mm. This registration technique can remove the need for potentially risky postoperative MRI.
authors.affiliation: Department of Neuroradiology, King's College Hospital, London, UK.
authors.forename: Ruth L
authors.initials: RL
authors.lastname: O'Gorman
authors.forename: Richard P
authors.initials: RP
authors.lastname: Selway
authors.forename: Campbell J
authors.initials: CJ
authors.lastname: Reid
authors.forename: Gary R
authors.initials: GR
authors.lastname: Hotton
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Hall
authors.forename: Jozef M
authors.initials: JM
authors.lastname: Jarosz
authors.forename: Charles E
authors.initials: CE
authors.lastname: Polkey
authors.forename: Derek L G
authors.initials: DL
authors.lastname: Hill
mesh_terms: D004599:Electric Stimulation Therapy / Q000295:instrumentation*; D004567:Electrodes, Implanted; D005260:Female; D006358:Hot Temperature / Q000009:adverse effects; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008279:Magnetic Resonance Imaging / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D012449:Safety; D020531:Subthalamic Nucleus / Q000601:surgery*; D014057:Tomography, X-Ray Computed / Q000379:methods*