Ultrasound-guided burr-hole biopsies in deep and diffuse brain lesions

Objectives: In contrast to stereotaxy, ultrasound-guided brain biopsies through a single burr hole provide a real-time imaging and do not require contrast media. However, it has been reported that this technique may be inadequate for deep lesions, especially lymphomas. Methods: We analysed 43 ultrasound guided brain tissue biopsies performed in our department within the last two years. Through a single burr-hole with a diameter of 11mm, a 6×9mm ultrasound probe was used to perform needle biopsies of different brain regions. The needle was attched to the probe by a guiding device, which was fixed at the neurosurg…