stereotactic biopsy
Minimally invasive procedure using 3D coordinates to precisely target brain tissue for sampling.
Full Definition
A stereotactic biopsy is a minimally invasive neurosurgical procedure that uses three-dimensional coordinate systems and advanced imaging guidance to precisely target and sample brain tissue for diagnostic purposes. This technique employs a rigid frame or frameless navigation system attached to the patient's head, allowing surgeons to calculate exact coordinates and safely access deep or eloquent brain regions through a small burr hole. The procedure is commonly used to diagnose brain tumors, infections, or inflammatory conditions when the lesion is located in areas where open surgery would pose significant risks. Real-time imaging guidance ensures accurate needle placement while minimizing damage to surrounding healthy brain tissue.
Usage
Usage note: Emphasize the precision and minimal invasiveness when distinguishing from open brain biopsy procedures.
In Context
- "Stereotactic biopsy confirmed the diagnosis of primary CNS lymphoma." — pathology report
- "The deep-seated lesion was safely accessed via stereotactic biopsy technique." — operative note