1. Accuracy and diagnostic yield of stereotactic biopsy in the diagnosis of brain masses: comparison of results of biopsy and resected surgical specimens;Aker FV,2005
2. A comparison of computerized tomography-guided stereotactic and ultrasound-guided techniques for brain biopsy;Di Lorenzo N,1991
3. Development of a frameless and armless stereotactic neuronavigation system with ultrasonographic registration;Hata N,1997
4. Ultrasound-guided brain biopsy: a personal experience with emphasis on its indication;Lunardi P,1993
5. Intraoperative ultrasonography through a burr-hole;Masuzawa H,1985