3D Ultra Sound for Resection of Brain Tumors

Initially a 2D acquisition will be performed and ultrasound parameters adjusted to obtain the best image resolution. Then anatomical landmarks will be identified if possible and the lesioncharacterized. Once the lesion is identified a rapid 3D-US acquisition will be performed. Tumor resection will proceed guided by the 3D US images using a trackable pointer to navigate. Repeat 3D US images will be obtained as many times as required during the surgery to update the information as tumor debulking proceeds. A final US will be obtained at the end of the procedure and after dural closure

Routine microneurosurgical procedures would be adopted in all cases.Sonowand system will be used for navigation control arm as well as sononavigation experimental arm. Image registration (on the previously imported DICOM images) will be done on the system and after positioning, patient-toimage registration will be completed. The Registration accuracy will be documented.