Surgical Accuracy of 3-Tesla Versus 7-Tesla Magnetic Resonance Imaging in Deep Brain Stimulation for Parkinson Disease

  • Peter Jan van Laar
  • , D L Marinus Oterdoom
  • , Gert J Ter Horst
  • , Arjen L J van Hulzen
  • , Eva K L de Graaf
  • , Hans Hoogduin
  • , Linda C Meiners
  • , J Marc C van Dijk

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

BACKGROUND: In deep brain stimulation (DBS), accurate placement of the lead is critical. Target definition is highly dependent on visual recognition on magnetic resonance imaging (MRI). We prospectively investigated whether the 7-T MRI enabled better visualization of targets and led to better placement of leads compared with the 1.5-T and the 3-T MRI.

METHODS: Three patients with PD (mean, 55 years) were scanned on 1.5-, 3-, and 7-T MRI before surgery. Tissue contrast and signal-to-noise ratio were measured. Target coordinates were noted on MRI and during surgery. Differences were analyzed with post-hoc analysis of variance.

RESULTS: The 7-T MRI demonstrated a significant improvement in tissue visualization (P < 0.005) and signal-to-noise ratio (P < 0.005). However, no difference in the target coordinates was found between the 7-T and the 3-T MRI.

CONCLUSIONS: Although the 7-T MRI enables a significant better visualization of the DBS target in patients with PD, we found no clinical benefit for the placement of the DBS leads.

Original languageEnglish
Pages (from-to)410-412
Number of pages3
JournalWorld Neurosurgery
Volume93
DOIs
Publication statusPublished - Sept 2016

Keywords

  • 7-Tesla MRI; Accuracy; Deep brain stimulation; Parkinson disease

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