stereotactic biopsy
A minimally invasive neurosurgical procedure using 3D coordinates to precisely target brain lesions for tissue sampling.
Full Definition
Stereotactic biopsy is a neurosurgical technique that uses three-dimensional coordinate systems and advanced imaging guidance to precisely target and sample brain lesions. The procedure involves placing the patient's head in a stereotactic frame or using frameless navigation systems, then using CT or MRI guidance to calculate exact coordinates for needle placement. This approach allows for accurate tissue sampling of deep or eloquent brain regions while minimizing trauma to surrounding healthy tissue.
Usage
Usage note: Distinct from stereotactic radiosurgery, which treats rather than samples tissue.
In Context
- "Stereotactic biopsy was recommended to obtain tissue diagnosis of the deep-seated lesion." — Neurosurgical consultation
- "The stereotactic biopsy revealed high-grade glioma with molecular markers." — Pathology report