stereotactic biopsy
Minimally invasive tissue sampling procedure using computer-guided navigation for precise targeting.
Full Definition
Stereotactic biopsy is a minimally invasive neurosurgical procedure that uses computer-assisted navigation to precisely target brain lesions for tissue sampling. The technique employs a rigid head frame or frameless navigation system to guide a needle to the exact coordinates of the target lesion. This procedure is particularly valuable for deep-seated tumors, lesions in eloquent brain regions, or when the surgical risk of open resection is prohibitive. Stereotactic biopsy provides tissue diagnosis with minimal morbidity, allowing for appropriate treatment planning based on histological and molecular analysis.
Usage
Usage note: Distinguish from stereotactic radiosurgery, which delivers radiation rather than obtaining tissue.
In Context
- "Stereotactic biopsy was performed to obtain tissue diagnosis of the deep thalamic lesion." — Procedure note
- "The patient was considered for stereotactic biopsy given the lesion's location in eloquent cortex." — Preoperative consultation