Intraoperative magnetic resonance imaging findings during deep brain stimulation surgery

Olivia O. Huston, Robert E. Watson, Matt A. Bernstein, Kiaran P. McGee, S. Matt Stead, Debb A. Gorman, Kendall H. Lee, John Huston

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Object. Deep brain stimulation (DBS) is an established neurosurgical technique used to treat a variety of neurological disorders, including Parkinson disease, essential tremor, dystonia, epilepsy, depression, and obsessive-compulsive disorder. This study reports on the use of intraoperative MR imaging during DBS surgery to evaluate acute hemorrhage, intracranial air, brain shift, and accuracy of lead placement. Methods. During a 46-month period, 143 patients underwent 152 DBS surgeries including 289 lead placements utilizing intraoperative 1.5-T MR imaging. Imaging was supervised by an MR imaging physicist to maintain the specific absorption rate below the required level of 0.1 W/kg and always included T1 magnetization-prepared rapid gradient echo and T2*gradient echo sequences with selected use of T2 fluid attenuated inversion recovery (FLAIR) and T2 fast spin echo (FSE). Retrospective review of the intraoperative MR imaging examinations was performed to quantify the amount of hemorrhage and the amount of air introduced during the DBS surgery. Results. Intraoperative MR imaging revealed 5 subdural hematomas, 3 subarachnoid hemorrhages, and 1 intraparenchymal hemorrhage in 9 of the 143 patients. Only 1 patient experiencing a subarachnoid hemorrhage developed clinically apparent symptoms, which included transient severe headache and mild confusion. Brain shift due to intracranial air was identified in 144 separate instances. Conclusions. Intraoperative MR imaging can be safely performed and may assist in demonstrating acute changes involving intracranial hemorrhage and air during DBS surgery. These findings are rarely clinically significant and typically resolve prior to follow-up imaging. Selective use of T2 FLAIR and T2 FSE imaging can confirm the presence of hemorrhage or air and preclude the need for CT examinations.

Original languageEnglish (US)
Pages (from-to)852-857
Number of pages6
JournalJournal of neurosurgery
Volume115
Issue number4
DOIs
StatePublished - Oct 2011

Keywords

  • Deep brain stimulation
  • Functional neurosurgery
  • Intracranial hemorrhage
  • Intraoperative MR imaging
  • Parkinson disease

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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