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 language | English |
|---|---|
| Pages (from-to) | 410-412 |
| Number of pages | 3 |
| Journal | World Neurosurgery |
| Volume | 93 |
| DOIs | |
| Publication status | Published - Sept 2016 |
Keywords
- 7-Tesla MRI; Accuracy; Deep brain stimulation; Parkinson disease