5Strowitzki M,Moringlane JR,Steudel W.Ultrasound-based navigation during intracranial burr hole procedures:experience in a series of 100 ca-ses(J).Surg Neurol,2000;54(2):134-44.
6Nimsky C,CramIandt O,Von kenller B,et al.Intraoperative high-field-strengthMR imaging:implementation and experience in 200 patients(J).Radiology,2004;233:67-78.
7Chacko AG,kumar NK,Chacko G,et al.Intraoperative ultra-sound in de-termining the extent of resecti-on of parenchymal brain tumours-a compar-ative study with computed tomography and histopathology(J).Acta Neu-rochir(Wien),2003;145:743-8.
8Gooding GA,Boggan JE,Powers SK,et al.Neurosurgical sonography:in-traoperative and postoperative imaging of the brain(J).Am J Neuroradi-ol,1984;5(5):521-5.
9Nimsky C,Ganslandt O,Yon-KeHer B,et al.Intraoperative high-field-strength MR imaging:inplementation and experience in 200 pafients(J).Radiology,2004;233(1):67-8.
