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Computer-assisted resection of supra-tentorial cavernous malformation
M Conrad1, C Schonauer, Ch Morel
1Neurosurgery Department D, Hôpital Neurologique et Neurochirurgical Pierre Wertheimer, Lyon, France. mconrad@rocketmail.com
Minimally Invasive Neurosurgery : MIN
|June 28, 2002
Summary
Image-guided surgery using MRI enhances the precise localization and resection of deep-seated brain lesions like cavernous malformations. This advanced technique achieved total resection with zero mortality and low morbidity in a patient cohort.
Area of Science:
- Neurosurgery
- Medical Imaging
- Neuroradiology
Background:
- Precise localization is crucial for minimizing invasiveness during cerebral tumor or vascular lesion resection.
- Image-guided surgery is an invaluable tool in microneurosurgical techniques.
Purpose of the Study:
- To evaluate the efficacy of MRI-assisted image guidance for resecting deeply located cavernous malformations.
Main Methods:
- Utilized the Sofamor-Danek Neuronavigation Cranial 3 System for MRI-assisted image guidance.
- Operated on 13 patients with deep-seated cavernous malformations between 1998 and 2000.
Main Results:
- Achieved computer-calculated registration accuracy between 0.8 and 2.0 mm (median 1.1 mm).
- Successfully located and completely resected the cavernous malformations in all cases.
- Reported 0% operative mortality and 16% transient morbidity.
Conclusions:
- Image-guided surgery provides superior assistance compared to older methods for intracranial lesion resection, particularly for deep or eloquent area lesions.
- Preoperative MRI-based 3D models and neuronavigation enable precise resection of small, deep lesions with minimal complications.