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Ultrasound-guided neurosurgery in intracranial space occupying lesions.

Intraoperative ultrasonography in 68 patients of brain tumours was found to be useful in localising and characterising them, facilitating a direct, precise surgical approach to the tumour. Assessment of extent of resection of tumour lessens the riskof increasing neurological deficit as well as increases surgical precision. Ultrasound guided biopsies of deep seated lesions is an effective, safe and relatively inexpensive procedure with the neurosurgeon being able to see the biopsy needle entering the lesion during the procedure.