4Ikezaki K Masushima T,Inoue T,et al.Correlation of microanatomical localization with posoperative survival in postorior fossa ependymonas[J].Neurosurgery,1993,32(1):38-44.
5Kellogg JX,Piatt JH Jr.Resection of fourth ventricle tumors without splitting the vermis:the cerebellomedullary fissure approach[J].Pediatr Neurosury,1997,27(1):28-33.
6Toyota S,Taki T,Oshino S,et al.A Neuroendoseopic approach to the aqueduct via the fourth ventricle combined with suboccipitaJ eraniectomy[J].Minim Invasive Neurosurg,2004,47(5):312-315.
7Hamada H.Hayashi N,Kurimoto M,et al.Endoscopic aqueduetal stenting via the fouah venricle under navigation system guidance:technical note[J].Neurosurgery,2005,56(1 Suppl 1):E206.
8Grabb PA.A]bright LA.Sclabassi RJ,et al.Comtinuoua intraoperative electromyographic monitoring of cranial nerver during resection of fourth venricular tumors children[J].J Neurosurg,1997,86:1.