Related Experiment Videos
Stereoelectroencephalography Using Magnetic Resonance Angiography for Avascular Trajectory Planning: Technical Report
Krasimir Minkin1, Kaloyan Gabrovski1, Marin Penkov2
1Department of Neurosurgery, University Hospital "Saint Ivan Rilski," Sofia, Bulgaria.
Neurosurgery
|April 19, 2017
Summary
Magnetic resonance angiography (MRA) with a magnetic resonance venography (MRV) protocol offers a safe and effective method for avascular trajectory planning in stereoelectroencephalography (SEEG) procedures. This technique successfully visualized critical cerebral vasculature without complications in epilepsy surgery patients.
Area of Science:
- Neurosurgery
- Neuroradiology
- Epileptology
Background:
- Stereoelectroencephalography (SEEG) necessitates precise avascular trajectory planning for patient safety.
- Current planning often relies on computed tomography angiography and contrast-enhanced magnetic resonance imaging (MRI).
Purpose of the Study:
- To evaluate the utility of magnetic resonance angiography (MRA) for avascular trajectory planning in SEEG.
- This study presents the first series of SEEG patients planned using MRA.
Main Methods:
- Retrospective analysis of 36 SEEG explorations in 34 patients with drug-resistant focal epilepsy.
- Utilized a modified contrast-enhanced MRA with a rapid acquisition MR venography (MRV) protocol for simultaneous arterial and venous visualization.
- Defined satisfactory MRA based on visualization of specific arterial and venous tributaries.
Main Results:
- Contrast-enhanced MRA using the MRV protocol was deemed satisfactory for SEEG planning in all 36 cases.
- No postoperative complications were reported across the 36 SEEG explorations.
- The technique facilitated planning for 50 transopercular insular trajectories.
Conclusions:
- MRA employing an MRV protocol is a viable technique for avascular trajectory planning in SEEG.
- This method allows simultaneous visualization of cortical arteries and veins.
- It avoids the need for additional radiation or invasive intra-arterial procedures.