 
         
         
         Abstract
         
         
            Objective: We present our experience with the neuronavigation system used for surgery of distal
            anterior cerebral artery (DACA) aneurysms.
         
         
         
            Methods: Between 2001 and 2004, 12 patients with a DACA aneurysm were consecutively treated
            with direct clipping assisted by the neuronavigation system. We used the BrainLAB
            Vector Vision2 neuronavigation system (BrainLAB, Heimstetten, Germany). Seven out
            of 12 patients presented with subarachnoid hemorrhage. Aneurysms were located at distal
            A2 in 10 patients and distal A3 in two patients. The size of the aneurysms ranged
            from 3 to 10 mm.
         
         
         
            Results: There were no procedure-related complications or technical problems during application
            of the neuronavigation system. The registration accuracy ranged from 0.5 to 1.5 mm
            (mean: 0.88). The neuronavigation system provided real-time presentation of the DACA
            aneurysm, and allowed for identification of the DACA aneurysm in all patients. No
            surgical complications developed, and all 12 patients had a good recovery after direct
            clipping.
         
         
         
            Conclusion: Although current neuronavigation systems are not available for all intracranial aneurysms,
            we believe that the DACA aneurysm is a good candidate for its use. The additional
            benefits of a small craniotomy and precise intraoperative orientation during surgery
            result in a minimally invasive aneurysm procedure.
         
         
         
            
Key words
         
         
            Neuronavigation system - aneurysm - distal anterior cerebral artery - minimally invasive
               surgery
          
      
    
   
      
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Correspondence
         T. S. KimMD 
            Department of Neurosurgery
            
            Chonnam National University Medical School
            
            5 Hakdong
            
            Dong-gu
            
            501-757 Gwangu
            
            Republic of Korea
            
            Phone: +82/62/220 66 07
            
            Fax: +82/62/224 98 65
            
            Email: taesun1963@yahoo.co.kr