Navigation-guided endoscopic biopsy
There are a couple of different biopsies: a stereotactic needle biopsy, a navigation-guided biopsy and an open biopsy. A navigation-guided biopsy is also called 'frameless', because different to a stereotactic biopsy, there's no use of a frame.
When performing a navigation-guided biopsy, first an MRI-scan is made to determine the location of the unknown tissue. The scan is then uploaded to the navigation program and the software calculates during the surgery the exact location for the needle. For more information about stereotactic needle biopsy, please check the link at the bottom of this page.
During a navigation-guided biopsy the neurosurgeon makes a small incision in the skin and drills a small hole in the skull, with the person undergoing the procedure being under general anaesthesia. Then, using the image guidance system, the biopsy needle is passed into the brain and into the abnormal lesion or tumor. Several small pieces of tissue are obtained. Once the procedure is completed, the needle is withdrawn and the skin is closed.
The tissue is sent to a pathologist and examined. The results can be expected within 10 working days. Depending on the results the treatment options can be discussed.
Within UNCH Haaglanden Medical Centre is specialised in navigation-guided biopsies.