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How I do it: MRI-guided stereotactic navigation for Laser Interstitial Thermal Therapy
Rune Rasmussen1, Silas Haahr Nielsen2
1Department of Neurosurgery, Copenhagen University Hospital, Copenhagen, Denmark. rune.rasmussen@regionh.dk.
Acta Neurochirurgica
|November 7, 2024
Summary
Magnetic resonance (MR)-guided stereotaxy offers submillimeter precision for neurosurgical procedures. This method provides accurate laser catheter placement for treating conditions like hypothalamic hamartoma.
Area of Science:
- Neurosurgery
- Medical Imaging
- Interventional Neurology
Background:
- Computed tomography (CT)-guided stereotaxy has limitations in neurosurgical navigation.
- Magnetic resonance (MR)-guided stereotaxy presents an alternative with direct MR navigation.
- This technique overcomes CT navigation limitations, achieving submillimeter precision.
Purpose of the Study:
- To detail the workflow for MR-guided stereotactic laser catheter placement.
- To evaluate the use of the ClearPoint® MR navigation system.
- To treat a hypothalamic hamartoma using this advanced technique.
Main Methods:
- Utilized the ClearPoint® MR navigation system.
- Performed MR-guided stereotactic laser catheter placement.
- Focused on the treatment of a specific neurological condition.
Main Results:
- MR-guided navigation demonstrated submillimeter precision.
- The technique enabled accurate laser catheter placement.
- Successful application in treating a hypothalamic hamartoma was achieved.
Conclusions:
- MR-guided navigation is a precise and effective stereotactic method for accurate laser ablation.
- This technique is suitable for targets requiring high accuracy.
- MR-guided navigation is more time-consuming and costly than standard stereotactic methods.

