Intraoperative real-time ultrasound in the localization of intracranial neoplasms.

Intraoperative ultrasound imaging in the localization of intracranial lesions in eight patients is described. This technique is effective in tumor location, and it can be used throughout surgery to monitor the extent of tumor resection. The ability to locate precisely a deeply situated intracranial lesion intraoperatively can reduce the risk of damage to normal tissue, assist in determining the extent of tumor resection, and reduce the time of surgery. Intraoperative ultrasound holds great promise, but if it is to be used to its fullest extent, further modifications of transducers must be developed.