Application of SonoWand Ultrasound Neuronavigation System in Brain Tumors Operation

Objective To evaluate the clinical value of the three-dimensional ultrasound neuronavigation system in brain tumor operation.Methods SonoWand ultrasound neuronavigation system was used in 13 brain tumor patients(9 male and 4 female,aged 28-59 years old,average 43.5).Characterization of the lesions were 9 gliomas,2 meningiomas and 2 metastasises.Location of the lesions were frontal lobe 4 cases,temporal lobe 3,frontotemporal lobe 3,frontoparital lobe 2 and multiple lesions 1.Results This cohort included 13 brain tumor cases and 14 lesions.The total and subtotal removal rates were 92.9%(13/14) and 7.1%(1/14),respectively.The length of the scalp incision and the size of bone flap were smaller than those of the ordinary surgery.After operation of seven lesions near motor area of cerebrum,muscle strength was not affected in 5 cases and decreased muscle strength occurred in 2 cases,which resumed after two weeks.No patients were deteriorated and dead.No complications related with this neuronavigation system occurred.Conclusion Intraoperative 3-D ultrasound neuronavigation system-SonoWand can localize accurately lesions,and is micro-invasive,safe and reliable.Through intraoperative real-time ultrasound scan,SonoWand eliminates the well known brain-shift problem and enables us to perform a more radical tumor resection.