Application of neuronavigation in resection of intracranial deep tumor

Objective To evaluate the utility of neuronavigation system for resection of intracranail deep tumor. Methods A retrospective review of 46 cases of intra-cranial deep lesions were used frameless stereotaxy systems. Data of MRI and fMRI were entered into the neuronavigation systems and analyzed. A 3-D simulation of model of cranium was reestablished and operative approach was designed. During the operation, the lesion can be located accurately. Removal range were decided. The clinical data and postoperative outcome were analized. Results The tumor and its surrounding structure were located accurately. In 46 cases of lesionectomy operations, total lesion removal was achieved in 39 cases (84.7%), subtotal removal in 3 cases (6.6%), most partial removal in 4 cases (8.7%). Neurological symptoms improved or unchanged in 41 cases (89.1%), postoperative neurological symptoms becamed severe or new deficience of neuronal function appeared in 5 cases (10.9%). No operative death occurre. Conclusion Neuronavigation system is very helpful for brain for the cases with lesions located deep in the brain. Its accuracy of location is very important in protecting normal brain tissues and decrease surgical complication.